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27870 PE-1750 SHELLEY LAKE 0-7 ~ ~ ~ r ~ ct . AJI ~ ~ . ~ r- ~ PIA ~ ~ ni~ ~ ~ ~ ~ , . lc~ ~ ~ , ~ J ~ . ~ , S R (D l< A, rv 1E ~ C) u 1~'T -r -'r T3Z1115IOI+F OF ENCI,NEEfI'ING Aldi] R17AL]S • A DIVISIDA! OF T1iE 1'UBL1C W[7RK5 DEPfrRTMEIVT Wilham A. ]ahns, P.E, County Engincer Dennis M. 5eott, P E. Tlireetor September 20, 1996 Todd Whipple, F.E. IPEC Buster Heitrnan Landrnaz`k Builders 8205 Nort1-i Divisivn 5pcalane, WA 99248 5UB]ECT: P1750 - 5hefley Lake P.U.D. 4th Submittal Gentlemen: A reuiew of the xoad and drainage plans far this project has been accomplisheci. Areas of cvncern to us are indicated in red on the attached prints. Please malce the correctiors and resubmit thern to this affice in order that the review process may proceed. When the DIans are resuhmittecl_ mlease mark all chanims on the revised nrint in cmlor. In adddtion, please grovide an infvrmation copy of any ukility plars for this project. if yora haWe any questions about this review, please contact Ed Parry at 456-3600. Thank you, Very truly yours, William A. Johns, P. E. Spokane Cvunty Engineer Edward~ P~ Jr., P. E. ~ P'lans Review Engineer encls: Pfarss (1 set) Cc+mments (2 pages) St$ndard Nates cc. prvjecr file rev'rerver (cortutients onily) 1026 W. 8roadwuy Ave. • 5poksne, WA 49260-0170 •(5") 45!•36Q0 FAX. {509} 329-3478 TDI]. (509) 324-3165 ~ a~ n REVIEW CC]1VVVVIENTS SPaKANE COuNTY DiVISiON QP ENGWEERING & ROADS 1026 VV BR4ADWAY, SPQKANE WA 99250-0710 PHQItl'E (509)456-3600 FAK (549)324-3478 REVTEW 4 REVTEWER: Ed Parrv PROJECT P1750 I3ATE: 19 SeDtember96 PROJECT NAME: Shellev La.ke P.U.D. I3ue tv th.e ecrent vf recurWng iternr, these comments are genera2 in nature, and refleet a cursory review of'this submittal. Please ensure that theplans arta' calculrrtians confarm to the applfcahle standards, crnd gaod engineerzng practice Previvusly nated comments, still pending resnlution: 2nd Review: GE1ITERAL 1. Plans will neeci ta be signed by the Developer privr ta approval by the County(Stild needed) 2. Plans foar the entire length af Ratchford Driae (per conditdans vf the design deviation - see County Engineer's letter dated 22 Jan 96) were not received with this submittal (Received 14Aug 96. Forfuture referernce, please ensrcre that the P.E. starnp bears a,fu!! sagnuture) [The conditiorrs of the Desigra Deviation Approval for terratrt classificatiort an the Ratch, fvrd alignrnens reqrcire thas the Caunty Engineer apprave the plans far the enrire Hotch, forrl alignrnent. The "For InformQtion Only ° wrtermark needs tv be remoued; astatement thut this work is to be constructed in the future should be ruided. Drainage plaras and calcs for thts section are not needed at this time; the County's appraval will rtrlte 'alignment & pm,file only Flerzse enure that aIl elements of the rxlfgnrnent and prvfide co,ftforrn to the SiC'RS) 3. Engineer's Cvnditian #40 requires that the 4th Avenue intersectivn at Canklin be designed as a 4-way intersectian. Hvw does this rvad alignment fulfill this cvnditian? Piease call to discuss. (Please see attached merno) (Approval from Planning is in circulation) itUAD & DRAINAGE PLANS Sheet 2 , 4. Raad sect'rons need to indir,ate existing RIW, propvsed RJW, future aequisition area, and existing paving, as appropriate (sectinrrs for Conklin ana` 4th Ave cia not ina'rcate the e.xxent df existing paving. This is needed sa that dhe arnaunt of widenang and incorrung taper tength can be accuratety evaIuctted) (W'here the sidewa~'c meanders autside of the RIW, the appropriute easements need tn be provrded, anci ind'icated on the road sectivns and raad plarts; rvhere the easement encroaches an a Lot, a.r opposed to a Trrrct, the earement needs to be shc3wn on the Lat P2an, aiso) . n ~ REVIIEW CC]NIlVIEN`I'S Page 2 of 3 19 September 96 PROJECT # P1750 RE'VIEW # 4 Sheet 4: 2. The design needs to prvvide 20$ treatment far the new paVing, as a manimum. The dryvvell in the curbYine at Cvnklin 40+49 RT does nat ar,GOmplish this. (208 Svate sizr"ng not checked due to exteratlsignificance of other uraresvlved camments) (A callaut ts needed for the drywell cct Conklin 48+60 RT) Sheet 12: . 2. The temporary easement shauld be canfigure.d as separate easements fvr the public (Separate errsements far the publac raad turnarourtd and the private rQacl turnaraund were nat indicaxed, nor were easemertt descriptians recerved wrth thas submittal) CALC[ILATYONS 1. The basin 1imits shown on the basin map need to be covrdinaterd with the grading plan, as well as with the lacativn af the variaus catch basins (See Comm,ertt #Z below) 2. t]ffsite topagraphy needs to extend far enaugh to define the basin limits {Contours at the west end of the plat need to be indicated far enough outside the plat limits to shvw the basart limits. As was done on IPE's Blackhuwk 1Vorthwest, the basin Iimits could be inciicarted as fteid-verified with a stgned, dated P.E. accompdnying that statement on the basin rraaP} 3. OFfsite basins need to be accounted far in the design. How are the flvws from the affsit,e basin svuth vf bas $n A rnanaged {Tiie plcrrs need to be coordinrrted with the rnterceptaon ditch concept stated an page D3 of the Drainage Repart} 4. Pre-develvped and post development flaws fvr the basins discharg'rng off tlne site need to be analyzed to determine what, if any, mitigating measures may be needed to manage flows (See Comrnent #3 abvve} 5. PraVide calculatians for the pipe to temp pond A. (1Vot receaved with this subrruttal) 6. Pipe from CB 1 to CS 2 dces nat ap,pear to be adequately sized far the flows inta the pipe; Please cheek & resolve. Please recheck other pipes to ensure that they are adequately sized - a pipe netvvvrk analysis is typically dane when a pipe system is intended. [The hydraudic gradeline calcutWort method depends on whether a prpe is tn superc,ritr'cal nr subcritrcal flvw. A pipe is in the srcpercritica1 flow regime when the Fraude numher i.r greurter than 1, and is usual[y indicated wh.e,n the nomiad,fdow depth at the desagn flow is less tlitan 1he cfitical depth at that,flow. Backwater method rs used in subcritical flow; the energy gradedine ("Frantwater") method is used in supercritical flaw) r~ REVEEW CONIl►vIENTS Page 3 vf 3 19 Septemter ~ROJEcT # r1750 REVIE"'{W # 4 EASETVIENTS 1. Sight distanc.e easements will be needed(Dimensiors for easements shtrwrt ort plans rte+Ed to be indicated) (Not irulicated an this submittat; please ensure that these are ako cvordinated with the Plat) ~ INL►4ND PACIFIC ENGINEERING, INC. August 23, 1996 W.O. No. 93143 Spokane Caunty Public Works W. 1[]26 Broadway Spokane, WA 99260 Attn : Paul Linneman, E. I. T.,Ed Parry, P. E. Re: She11ey Lake - PE-1750-34 ~ I3ear Pau11Ed: Enclosed please find our 3rd full submittal nf the Shelley Lake F1ars and Drainage Repart, this 3rd fa11 submittal is in response tv yaur reView comments indicated as submittal #3. The cotafusian comes frQm an incomplete submittal af only the E5C plan.s that were submitted early on in the plan process which resulted in your first review. These plans haVe been revised per comrnents received on August 19, 1996. Encivsed you vuill ~'ind the fallawing: eA. Two sets vf 6vnd prints including road, storm and ESC plans, as requested ane set has heen marked tv reflect the changes. -ff7- Qne copy of the revised drainage repart, this is the same repvrt that was submitted fvr the 2nd review which was revised but was not reviewed. - Additionaily, other required calculations are included, laase with this submittal that can be inserted or kept loose. Please refer ta the submittal cvmments with the second Fu11 submittal {your 2nd revzew} to determine the changes within the document from the 1 st full submittal. -TII. Lvt plan sheets. IV. Ratchfmrd DriuelConklin Road super-elevatiQn worksheet. V. Schematic for a future 4th Avenue extension intersection with Gonlclin. VI. 4th Avenue super-eleuation transition worksheet. VII. 4th Avenue Curh Design. Py of the ~'ire department appraval for the "l~uckles" as rec~uested. igiz~al lettex fran~ Jerry Petersvn, P. E. regarding the retaining wa11 comments yvur review comments. m lfro ry ~ ,:;`;:lT 707 West 7th . Suite 2(]0 2020 Lakewoerd Drive • Swte 205 5pokane, WA 992L}4 Coeur d'Alene, IQ 83$14 509-458-6840 • FAJf. 509-456-6844 208-765-7784 • FR]f 208-769-7277 - Spakane Counry August 23, 1996 Page 2 X. C)riginal Svil Classi~'icativn testing analysis performed by 7erry Petersvn, P.E. for the roadway sectians proposed. XI. Two copies of [he sight distance easement exhibit, if these appear correct we will incarporaCe them into the final plat, the areas shown have been incorporated into tYie plaras submitted. The design speeds used were 35 MPH on Rotchford Raad and 40 NIPH on both 4th Avenue and Gonklin Road. The enclosed plans haVe been prepared in accordance with the 1981 S+CRS and the current Spokane Cv. Guidelines for Starmwater Management. As with every submittal our gaal is fve you to review and approve t,hese plans and documents with this submittal. Any review camments shou1d be directed back to this office to my attentian. We have made every effort to accomrnodate all vf your comments. Belaw is a brief respvnse to your reView cvmments. T'his response will describe how each itern which may ar may nvt have been specifically aecommvdated and an brief explanation as to the situation. NERAL 1. At this time, we are submitting the plans back to yvu for yvur reView withvut the develaper szgnatures, as has been our practice, we wi11 prouide this with the final mylars. Tf however, this is an essential issue specifically required for your review, Mr. Buster Heitman the spQnsar will come to the CQUnty to sign these plans. 2. The south portian of Ratchford Drive is included for yvur review, this plan sheet has been marked fvr infvrmation onJy as no raadway canstruction is propvsed at this time. 3. Based upon a conversatian that we had, yvu indicated that we did nvt have to prouide a design for the future 4-way intersection as it will ultimately be offset and the futiare RdW vnly exisCs as a Tract X parcel. However, to address your concerns, we met with John Pedersfln with Spokane County Planning and have requested an administrative change to this condition. Please refer to Jah,n or Pat Harper on hQw to approve these plans. A copy of the schematic plan is attached for reView. 5. At this time, the Fire Departrnent has responded that the plat layout is apprapriate but the street names need t❑ be revised. A copy of the fire S,Qokane County Augaast 23, 1996 Fage 3 department letter is attached. Please note that during additivnal discussiarrs, Tsenhart Lane can be changed to Shel1ey Lalce Lane 7. Based upon discussions with the fire district we have received specific approual fvr the "knucklesleye brows" and will send the mylars to the fire district privr to submitting final anylars to yau for approval. Acopy of the hand written approval is attached. 8. The berm bank eleVation vf 0,2' was added to the detail as requested. 9. A1though, we dm nat agree that the plans wi11 be mvre accurate by using the grading plan contvurs ehey nave been added to the plans. The fact is that the grading eoncept pians were Qnly intended to be a guide during some mass grading operatiors. However, during these vperations ield changes were made to the averall grading scheme vvhich wQUld naake the grading cantours obsalete. We feel that the best way to portray these items is to continue to shaw the existing ground cantvurs that were taken during the actual field topa and not frvm a nan-field werified plan. RQAD AND T)RAMAGE PLA►NS Sheet 2: 1. .At this time, the rvadway sections have been detennined fram the matrix faund in the 1495 SCRS. This item was Ancluded in a design deviation, a copy of which is included. 2. The width of Conklin Raad where a completely new aTignment is required has been shawn as 44-feet. For the remainder, we are treating it as a half street improvement. I understand that there u+as srame concern frvm the Cvunty regarding i.mpx[avrmg the rvadway this way, sa a nate has been added to the sections to indicate that the curb and sidewalk ❑n the west side of Coniclin will be constructed when the adjacent land is develvped. 4. All existing and proposed ROVV delineatians have been included. Additionally, a blow up of the 4th Avenue area has been included to aid in deterzalinirag t,.he adequacy af the taper length. ckcrx 13r.&JJfV.0A0- Spakane County August 23, 1996 Page 4 5heet 4: L3~A catch basin was added to facilitate nanoff to a 248 pond along Chis streteh vf Conklin. Sheer 5: `l-. A gvnd has been provided to allvw for the aew pavement an 4ta Avenue on1y. ~--See response to Sheet 2:, No. 4 above, 4. A design deviativn dealing with these grades has been subrmitt~d for apgraval, a copy vf which is atrached fve your review. 5heefi 7: 1 A design deviation dealing with the kiauckles noted has been submitted for approval, a copy af which is attached for yvur review. Sheet 1 1; 1. Enclosed is aletter from the Geotechnical engineer dealing with those portions of this comment which were not incarparated into the plan ar daes nat agree with specific points of yaur cotaiments, 2. "ee the respvnse to General CornmenCs, Nv. 4. Sheet 12; 1. Ner private raad en.trance vvas provided or delineated at this time as the entire turnarflund and temporary raad cannecticrn are gravel and fiherefare wvuld be difficult to rnaintain and delineate. Tf you desire, vve cauld install signs denoting priuate road, p1ease advise. A1ong thase lines, we have inciuded sigming in the plans which wi11 delineate the public rvad from the private rvad entrance. 2. The specific easements will be forvvarded to T]ave Berto when prepared. S,pokane Caunty August 23, 1996 Page S CALCULATION; 1- 3. At this tiane, a11 drainage calculation comments have been addressed from the previvus comments receided as they are the same. 4. At this time no offsite flows are anticipated fram any part af this proposal, therefore, nv znitigating measures have been included. 5- fi. At this time, all drainage calculation camments have been addressed from the previaus cQmments received as they are the same. EASEMENT5 T. At this Kime, a11 easements have been delineated on t.he plari.s and wi11 be included in the plat. At this time there are nv offsite easements required for sight distance triangles. We feel that we na►ae accammrodated a11 comments as nated and therefare are requesting approVal of this praject plan set. During your review, we will gladly take the tinle tv discuss any review situatians whxch may arise as we feel that this may facilitate overall approval much more quickly. Please call wath any questions or camments. Sincerely, _ Tnla Pacifi Engineering Ca., Inc. Todd R. Whipple, F.E. TRW1tw enclosures cc: Landmark Builders, Buster Heitrnan file • RLG-30-1996 11126 INLAND PACIFIe ENG o ~ . ~ ~ wri: . . ro: ~~.~I~ ~►tr,~r~'~ INLAND P~►CIFlC ENGINEERIRlG CD. ~Q~PANY: 707 ■1esi ! W! Are., S'Y.le 200 SPOEGSRe, WA $9204 ~ FAX NRlMBER: TBrephoClB - (649) 45M840 Awe- FAX - (509) 458-6844 ~ FROIW: ~ ~ NIlMBER +QF PAGES: .►OS IJMBER INCIr CaVER PAGE ~ NQTES: C'.~LI Cj= ~ ~ ~ ~ • C~•~~ ~ ~ ~o (9 MiLke A43v eqw _ FAx -rRANsMrssIvN ~ RvG-30y1956 11:26 INLRND PACIFIC ENG P.02 F ` ,;""t ~1, A~S ZI REQUEST FOR DESiGN ~EVIA°I'ION $30.00 DArE "Mst i6* D96 ROAv N►~ ~ariou$ -roads tbro~~~uqTFM"~na ti ] CRPAW I 3~IA NAME OF PLAT 5helley I-ak~ `r.;143 . . . - , AF]DI~ESS i]F HT~7G ' N/A CC: Lf4i P~t ~ PE-175(9-34 R[E4ME QF BLE3G PROJECT ' NIA BLLG# $9 N/A 24 T ZS~R 44s FEDEkAI.fSPATE PR[31E~.'P # N/A ~ - - pWTEC'TLD4]I'S 3-st phase p].at baunda,ry EX=G C4N'D[TTONS; PROAOSEV MpRpVEmENTS: ROAl] W'MT1J ROAD 5LT1tFACE AVG. DAILY TRAFFiC Cu= Traffc C[iemt Desiga Year Traft C.QUnt PRD= DESCRIMpN 3'E~i-q prvjeclt is rhe deve].opmeat of the Ist phase of the Shelley Lake Frei?-iaarv Plat a pTI]. This phase contains 4th Avenue, Rotcbfvrd Drive, Conk13.a. R,osd & assartea3 private rQads, as well it v11T fac3litate the platt3rig of approximately 100 ].ats-+. PRQPQSED DESIGN DE-MTIQN Thas des3gn deviatiou is iatended tv pick up those minar '.itew vMch are either not cv°vered in the 1981 5CRS vr are a deviativn from those standards. 5ee letter attached. I!]S'IMCA3'TOIY: • See attached letter and exhibits. SUBMr= BY Tadd Fbipgle, an].and Pacific Engineer3ag Co., Ine. , DATE gugust 16, 1996 -.4I3DMS 703 W. 7th Aveaue, Suite 200, Spaksae, Hasb,ingtcm ZIP COI3E 99244 FHONE # r509 458-5840 FAX (509) 458-6844 a:s~+as ADNENLSTRATIVE VARLANCE FEE QF 530.00. PAm TiO S~KANE CDL LNTY $saa:a.r 1026 W~ROADWAY, SPC7KANE WA 99263-0170 PHOIdE (5(39)45&36Dd F.4X {509}324-347$ -'FtEQ1.7F.57 WILL NDr $E REVMWED WTrHOUT FZlNQS- ~~c °x~ •d~ # ~Er~p ax -Agia~~a nATE E2 M - . v AUG-30-1956 11 :2? I h[LAND PAC I F I CENG P. 03 . s r 6 ' DIESIGN DEYiA`ITON ffAfZRU APPM Appmve$ wleonditim l+toz AMave3 ~ Project~1~fauger Dam Appro~ed wlcor4tiom Noc Approved ~ . ~ - ~ t ) ( 3 ~'"~6 C ~ Prvject M=gemenr Engmeer I]aie ~ppruvcd Appr+oved wls,vaditiaas Nut Apgraved ' t. ) T Enidneer Dam SFQlKANE CoTJN"IY DE3~RMINATTOM • A►ppmved w!ao condhinti Appruved as reommeadad abave 1+Iac tlppm•+ed SllPERELEVA7ION 7kAR[SITIDN GALCIJLATI4NS 1NQRKSHEEET PRdJEGT NAME: SHELLEY LAKE P.U.D. TRAN51TIaHING TO FULL SIIPER PERFARMEO BY: MBZ STATIONING INCREMENT = 25 ff DI17E: 6194196 C7[ST TO LIP OF GUTTER = 20.5 ft STREET NAME: ROTCHFOF~D DRIVE STREET NAME: R[)TGFEFC]RD DRNE STA T1DIV INTERVAL: 33+78.53 TO 35f28,53 STATION lNTERVAL; 38+68.27 TO 40+18,27 TRAN5IYI[)Pl IN TRANSIT[C3N 4UT RIGHT GURB RCGHT CURB CL STA SLOPE G[, ELEV. TOP l7F CURB ELEY. +CL STA SLOPE GL ELEV. TOP C)F Cl9FiB ELE11. 3378.53 -0.02 2037.48 2037.50 3858.27 0.04 2024.88 3026.49 3403.53 -0.01 2037.63 2037.84 3883 27 0.03 2024.67 2025.68 3428.53 0 203765 2038.04 3918.27 0.02 202447 2025.27 i 3453.53 0.01 2037 54 2038.12 * 3943.27 0.01 2024.27 2024.e7 3478.53 0.02 2037.23 2038.07 * 3868.27 D 2024.06 2024.45 3503.53 003 2436.90 2037,90 * 3993.21 -0.01 2023.86 2024.05 3528.53 0 04 2036.38 2437.59 4018.27 -0.02 202366 2023.64 343497 0.0026 203764 2038.4$ ?C 7( X x x 3514.97 0.0342 2036.70 2037.79 ` DISTANCE TC] LIP QF GL9TTER VARIES 18.6-20 5' LEFT CURB LEF7 CL1RB CL 57A SLQPE CL ELEV. TqP OF CUFl6 ELEV. CL STA SLQPE CL ELEV. TvP OF CURB ELEV. . 3378 53 -0 02 2037.48 2037.46 3868.27 -0.04 2024.88 2024.45 , . 3403 53 -0.02 2037.63 2037.61 3893.27 -0.03 2024.87 2024.45 3428 53 -0.02 2037.65 2031.63 3918.27 -0.02 2024.417 2024.45 3453 53 -0.02 2037,54 2037.52 ' 3943.27 -0.02 2024.27 2024.25 347853 -0.02 2037.29 2037.27 3968.27 -0.02 2024.06 2024.04 3503 53 -0.03 2036.90 2036.68 3893,27 -002 2023.86 2023.84 3528.53 -0.04 203638 2035.95 4018.27 -0 D2 202166 2023.64 . SUPERELEVA7IC]N TR,►4NSIT1O1V CA~CULr4TlONS WORKSHEEET PROJECT NAME: SHELLEY L4KE P.U.D. TRAN5ITIQNtMi'a TQ FllLL SUPER PERFORME@ BY: MBZ STATIONING iNCREMENT = 25 ft. DATE: 6I15196 DIST TO LIP OF GUTTER - 18.5 ft. STREET MAl1rIE: FOURTH AAIE. STA71a'N INTERV 8+50 Tp 10+50 TRANSITiC]N IN LEFT CURB CL 5TA SLOPE CL ELEV TC]P OF CLlRB ELE'll. 850 -0.02 2023.03 2023.05 - 875 -0.015 2023.40 2023.51 900 -0.01 2023.74 2023.95 925 -0.005 2024.11 2024.41 950 0 2024.58 2024.97 975 ❑.i3D5 2025.04 2025.62 . 1000 0.01 2025.90 2026,48 1025 0.0~15 2026.78 2027.45 1050 002 2027.74 2[}28.50 , 3 YI S~ p ' ~ ~ ~ ~#i ~ "o ~ g $ 8 g ~ ~ 8 s 8 s 8 b1 N 'a $ 8 !i ~ ~ N c~r ~ Q 4c a o 0 0 0~ d a~ol a~ a Q o a o~1;~ ~ t~ y~ 4 Pi V -W II ii n ii C)-4~~~~~~~~~~ 0 0 0 o a o r~ ~ o ~ b C~ o ~ ~ :o 0 o a oH~ o +e C, ra a ~ ~P ~ , u q tl ti 13 $ 9 $ 8 8 $ $ $ 9 9 $ 8 S i O 6 f,? p O 4 G O G C C O O C 6 6, Cf 0 O 4 p p O q p O q ~~~UN 0 . ~ , . ~ ~ i TabTe No. 2- Pond and 208 Basin Summary . . . . . , , „a,;. ~ . . , # . . , J~~~, A }d¢,~,,; :,~f'•.~ " ~ <a-`~~ ti k~ r~t 5 r f S~ ~ •eci> d } o , , ~ i~II~~~~1~~L~~G~, .~l~S~ `9,~[{?~ „ t?7~.~;~.". • Basio ZZ6;,~ lurhe-,~ ;2~lS Ae-es ~~8 ~ir~a D -'a~wel~`s~ r>s ~ ' ~ • ~tequfr~d (c~ ,~1~eq~riared;(sf) ~ P~-ovi~.ed R~e~li~red A A 757 1514 1905 1B B C 548 ~ 1096 1285 1A , c D 1273 2546 2933 1B _ J] E,F 565 1130 1516 1B E&F T,J & ~ff'~B$ K5 ~ 99D R4LM,' FA {;El Y~CrI.~' n 7 3x3j.4; L7 1.~ G2 !A2 377 ~IA+ H N 6i~7 121 ~r2d`4, IA I x 607 1214 1354 Ia 1 -551' S5 ~ J H,M,C7,Q,F~ ~7EM K S 280 560 560 1 A B 5 113 U10.0 ~B' ,T~ 8~2~9 MO 9766.0 EB m b 3'E8 @10. A Temp Ternp A 60$1:2,N6 I£ZSio}' IA . P P I ~ 9,~5 F; =~Gfl 1 A Type A is a 5pcakane Standard I7rywe1l- Single Depth, Capacity 0 3 cfs - T}+pe B is a Spnkane 5tandard Drywell - Dauble Depth, Capacaty 1.0 cfs = 5wale, see swale valwme sgreadshccc for vvlume provided calculation ~r= 5OAy,eai~,~~aw,~at~D~l~•~fs; ~Aained with S~] Y~~VO1~Farcgmp~sitetf~sin nF l,b~l~"`~;taial vnls:~ie ~rer,wii~ed ~.;ain`dsEsanr3;~,h i03~at 1.O~foot of;depih arid~li626 df aty4~?8 f~vt-e~~p~Yi~~ienefcsr~, t~be uolume pm~ridetiar euent byt[aeal Mlwrie. --i , ~ T~te~'e~uripe.nr,io~~area is used only ~vr~tcalcul~itirig~th~ G~f'actar, thenew p~r~ent ~`'alue~a _ 1~3:$D sf ~va~ used tc~ sizeR4~e~208 poi~d:sia"~e. - fndand F'rrctfrc Engineering Comprany D6 Shefdey Lake Plat Drainage Repnrt ~ 3`abPe No. I - Pand and Basin Summary. ~►;~]~r~~3~•~~,1]''~•'~~;.,,, , ~i ~`r"~>`_ C } ``ryv ' , ~Y~A ~l'~ Ei} L, BAi7II1 ~~'E h i f ~l J, } , ~ ` • S~ ' , , r~ ~rr~.. . . gnd Besins `ro~~Areq (SF) '~ian~rvivus~ W~ghtec#'•G"'~ Acz~ge,,,, ~ ' . < . , , , ' , ,~4re# (S~'i , • < < ' . , ; F ~ , ' A I - -99755 ~ 1817U ~ 0.2866 I 2.29 ' B ~ C I 42412 I 13145 ~ 4.3 $^c5 ~ 0.974 C I D I 178405 I 30554 I 02784 1 4.046 G I E,P ~ 86260 13595 ~ 02682 ~ 1.480 E T~&.Off B "87~ 2+`'-S6 ~ .OS~I'Oz? F T 5950 ~ 2335 ~ 0 4443 I 4 137 E&F 248,95 ~ D.41° ~^2 ; ~~-C56 9: +G~1~ I Gl~ I 12428 ~ ~~.OLli7 ~ 0.391$ ~ {],`~2 5°. ~~z ~ G2 R=,;~~ 1 au~ ~ 0.D 17u] ~ =56 4- H ~ zv ~ Zl ~ ' sa. ~ o.~~ ~ t I X ~ 28221 ~ 14567 ~ 0.5371 I 4.648 x ~ H,MA,Q,H ~ ~ 1395=3 ~ 6~~72 I 0,3}8 I ~~~417 K ~ s 20080 ~ 6714 04008 ~ 0461 1'06i€}1 ~ 3A117~~6" 0.374~ i =44 6 9-1 [7,T 4619$ :~c3,$_$8 0.8j25 1.Q&I 14 V l1C5'S~~' 157`fl~ ,S {l.$6~5 0,'~38D ~p F 21904.5 0 32~`49 1141106- 4~593' f 0.3253 I ACG69 Nesiei Basin A-Tem has 14593 sqR nf gravel @ C=0.50 per SCSWMG Nvte~Tiu;r""~ous areac~ncIud cur,h,_~fc~er, sidewalk and°asphal ~g~ "=-No`[e ~`the irrci er,vi~us~srea~is us edr~n1,~vr caiculaiin~t~ieC.faetor tha rie~v, aV~'"itt . ~ ~Y _ P,~- valqe,o~'~1~'2~~;8,0 srfw~as ed t, o size th~ ~2f~8~pand size"; Inlanrt Paclfcc Engineerang Cwr~pany D4 SIaePley I,ake Ftat L3rurnage RepQri Sh+elley Lake, PUD Runoff Coeff'icient Calculatians 6asin P TotaE I Imper►r l C" I Sum Ac A k 99755I18170I 0.2$661 2.290 e I 7061011 31716 0.37421 2.43e c I 424121 13145 0.38251 0.974 a 11784051 305501 0.27841 4.096 - - - - - - E I 31165 65651 0.30801 0.715 F 55o95~ 70301 0.24571 1.265 G1 12428 40071 0.39981 0.285 G2 1 23271 43781 0.2911 1, 0.534 H ~ 28170 +6888 0.33341 0.647 I ~ 27356 21550 0.7408 0.628 - - J I 5950 2335 0.4443 0.137 K ~ 0 0 ERR 0.000 com~~~~d mitn P M ~ 84801 1 2853 1 0 2638 . 1.947 ° N 1' 21916 145801 064761 0.504 D 33370 71701 0.3111 0.766 'P 49045 114381 03249 1.126 Q 60212 186751 038261 1.382 R 1 107400 205761 0.2937 2.466 s 1 20080 67741 0,4008 0.461 Y p 10670 101371 0.8625 1 0.245 u 35525 337511 0.86251 0.816 _ V 16532 157051 0.86251 0.380 W 1 165321 99191 0.60001 0.380 x 282211 145671 0.53711 0.648 Off a 538351 Q I 0.15001 1.236 vff B 175161 01 0.15001 0.402 A remp ' 29139I145g3I 0.3253I. 0.e69 - Totals 1 11949651 3370221 0.3Q15 I 27.433 4 Note 1- For basin B, the imp, shawn is vnly fvr calculating the "C°° Values, the actual new imperviou5 area is 12380 sf. She[Iey Lake, RLiD - Pvnd and Basin 5ummarv Pvnd Basins lTQtal lImperv I G I Sum Ac A A 1 997551 181701 0.28661 2.290 B lc I 424121 131451 0.38251 0.974 c I o 1 1784051 30550I 0.27841 4.096 ❑ I E, F 86260I13595I 0.26$2 I 1.980 E i &Off B 448721 215501 0.51021 1.030 F J I 59501 23351 0.44431 0.137 E&F II,J & C7ff B 1 683381 23885 ~ 0.41211 1.569 G2 I G2 I 23271 43781 029111 0.534 ' H IN 21976 14589 I0.6476 0504 I Ix - 28221 145671 05371, 0.648 J { H, M,O,+Q, Rl 3139531 66172 0.3081 7.207 K iS 1 200801 6714 0.4008 0.451 A Temp A temp 1 291391 14593 4.5256 0669 Gti Gl I 124281 4007 0.3918 0285 L B 1 1061011 31716 0.37421 2.436 AIF U,T 1 461981 438881 0.86251 1.061 N V 1 165321 157051 0.8625 1 4 380 p l' P 1 490451 11438I 0.32491 1.126 ~ hlvte 1- For basin B, !he imp. sh❑wn is only for cafcu[at~w~ Va9ues,_the actual new impervious area is 12380 sf ~ Shelley Lake PL1D " IPEC Job P!a 93143 Th€s form is based upon 5ection 5 of the 5pokane County Guidelines for 5tarmwater Management iwake Vofumes for Conkdin Road and 4th Avenue , Dafe 08123196 Engmeer TRW File. CBNKSWAL.W132 Conklin Road (Riqht 5wale) 8 4th Avenue S#ationing FromlTo Slope Qepth Bottorn Side Sectional Volume Level VoEume Valume 6eginnirag Ending Width Slape Areafff Flat Pnol Ltg. C3n Slope Used by {°/o} [ft] (ft) { 7.: 1) (c#lft) [cf) (cf) 5lmpefc1'J 4th Aaenue 655001 843,001 0.00 1 0.50 1 5.00 1 3.00 1 3251 6111.001 188001 611001 611.00 h I I I I I I I ~ I l I I umlume a5 Ffat (cf7 I sil oo I l M I ~ I Volume on Slope (cfl I I 613.00 I I IVnlume Provided (cf) I 'l 611.00 I I I I I I I I I I 1 I- I I I I Conklin Av~ I I •I I I I I I 1 I I I I I I I I I 4 I I I I I I I 4345.00 j 4445.00I 0.80 p 050 I 1.50 1 3.00 1 1.501 150001 6250 93.75I 150.00 4445.00 4545001 080 ~ 05(] 1 150 300 1 1.501 150.001 52.50 93.751 150.00 4545.00 4645.001 0.80 ~ 0.50 G 1.50 3.00 1 1.501 150.001 62.50 93.75 150.00 4645.00I 4745001 080 I 050 p 1.50 I300 I 1.501 150.001 62.50 93.75 150.00 4745.00I~4845.a0I 0.80 I0,50 1.50 1 3.00 I 1.501 150.001 62.50 93.75 150.00 I I I I I ~ I , I I I Vvlume as Flat (cf) I750.00I I I I I Volume an 51ape (cf) ~ I 468.751 I I I Valume Pravided (cf) ~ I I I 750.00 1 BOWSTRfNCa METFiO❑ PROJEGT, Shelrey Lake - Phase I 'FEAK FLQW CALCRJLATION PR[7JECT Shelley Lake - Phase I DE'd'ENT14N BA51N [)E51CiN BASIN, 8{1} revised BA51N Ei(1) revised DE51C,NER TRW Toi Area 2 44 Acres OATE []8I23195 Imp ,Rrea 12380 5F C ~ 0 37 Time Inerement (min) 5 CASE 1 Time af Cone (min) 566 Outflow (Cfs) 2 130 ft Overfand Fla►v Design Yeat Ffava 10 Area (acres) 2.436 Ct = 015 fmpervious Area [sq R) 12380 L= 130 ft 'C' Factor 03747 n= Ct +tO '248' Volume Provided 565 S= 0070 Area "C 0912 Tc ~ 3 57 min , by Equataon 3-2 oF Guidelines Time Time inc Intsns. QDevel. Vv1.ln Vcrl Out 5tarage 270 ft Gutter flow {min} (sec) (inlFir] {afs} (au ft) (cu R) (cu ft) Z7 ~ 500 , For Z2 566 ~ 339 300 2.73 1244 679 555 , ZZ = 1 Type 8= 10 n= 0016 R611ed = 3 5 5 300 3 18 2 90 1165 600 565 S= 0010 10 600 224 2{]4 1461 1200 263 15 900 1 77 161 1538 1800 -162 d= 0 224 f~ 20 1200 1 45 i 32 1739 2400 -661 25 1500 1 21 110 1782 300(] -1 218 A R Q Tc Tc tvtal 0 Qc 36 1800 7 04 0 95 1816 3600 -1784 - =W====== ======e 35 2100 0 91 083 7$3$ 4200 -2352 1 28 • a i1 275 z as 566 300 273 40 2400 082 075 , 18e0 aaao -2920 45 2700 074 067 1889 5400 -3504 Qpeak for Case 1 = 2 73 cfs 50 3040 068 062 1931 6000 -0069 55 3300 064 058 1993 6660 -4607 60 3600 069 056 2066 7200 -5134 GASE z 65 3900 060 0 55 2196 7800 -5804 70 4288 0.58 0 53 2282 8400 -6118 Case 2 assumes a T+me of Cpncentration less than 5 rninutes so that the 75 4500 056 0.51 2356 9600 -6644 peak flow = 90(3 1$)(1rnp Area] ~ 6 81 cfs 80 4800 053 048 2335 9600 -7225 85 5100 0 52 0 47 2472 10200 -7728 90 5400 054 046 2514 10800 -8286 Sa, ;he Peak flow for the Bason ds the greater of the twa flaws, 95 5700 0 49 0 45 2598 19400 -8$02 2 73 cfs 100 6[]00 048 0.44 2676 12000 -9524 208' DRAINAGE POND CALCUdATIONS Required'208' Sforage Valume = Impervinus Area x§ in 1 12 mlft 516 cu ft , 208' Skarage Vplume Provided 565 cu ft DFiYWELL REQUIFZENfENTS - 10 YEAFi dE51GN 5T0 Maximum 5torage Required by Bowstring 555 cu ft Numbet and Type o€ Drywefl5 Requited fl 5ingle 2 d]ouhle INLANp PACIFIG ENGINEERING • ~ f INSTALL TYPE "B„ PF2ECA57 QR'YWELL ~ ~ WITH TYPE "4" {NETAL FRAME ANCJ 50LID COVER ' sTA 7+00, 25' RT., LIo EL-2021.39 4TH. AVENlJ E INSTALL TYPE "1" CDNCRETE lNLET WITH ~~~TALL 10 L.F. OF # 2" C.M.P. @ 5-0.0200 IE(S)=2017.23, IE(N)=2017,03 3YPE " 1" METAL FRAME 8c TYPE "2" GRATE 5TA 7+{30, 35' RT, RIM EL=2020.23 _ CUR6 ,NLET T'r'PE 2 • 57A 7+25, TC=2021.49 CLIRQ INLET TY'PE 2 TYPE "B" CURB 8c GUTTER 5TA 6+75, 7C=202 1. i 3~ _ - ~ ~ ~ E' WIDE SI QE1Nfsl,K 85.91' ~ io- r+naE u~~iTY - 0~.. PflND "L" 8309' . 35' DRAJNAcE EAsEMENr r LO1, EasEMENr 859]' (L~-~- ._-v-se- 1' f - BauNoAR~ LEVEL - I I FLAr aarrQM a,REA V 4 , 75' SF-fBRCK LINE i DRAINAGE ESMT ~ ~ I 1 I I ! I I I I Q I Q I PROPERTY LIIVE ,°n I ,°ri I I f I ~ l I ~ 3n1 WD._ sEwER i - EAsE AENr f I :.~Rr~i!~1~.......,.............,~ _ . . • . . . . .................ZQ c,a. : 15. H.. Cll1.5E....SE...T,. ~...BACK..LI..N.E J.............. ------v----------~---- - ~ 1D' WEQE UTILITY EASEMEN'f 85.9 i ' LAN E D 2b462 TYPE "R" 'ROLLED ` CURB ~NAL~ SCALE: 1~~=20' POND 6~?TTtil~ ELEV'.=2419.73 ~Ek'~iRES 9,I24 ~ 6ERM ELEV.=2021.33 ~ / 1 ♦ ~ INLANa ~ LOT 4, BLOCK 7 ~ E~a N E~~NC~ SHELLEY LAKE P.U.D. - 707 wasc 7tn . s„ite 200 (509) 4W-6840 ` DATE: 8/23,96 o/ 10, Spokorte, "WA 99204 FATC: (509) 438-8844OOF . ' ~ R = 30.00' - L _ 4.60' 4th AVENl1E 5' FvruRE ncQUIsiTarv AREa . 65.41' - ~R ~ f . e T - _..a..-.- - e- e- e-- - - ~ ............2S'..SEfBncK Lih~E ......i W~~~ ~RAiNacE - L-- EASEMENT I ~ • l 0 0 ~ V LO z 70 8 ~ ~ ~ ~ ~ i 20' GARAGE 5kfi'BAC}C LINE .....................15`" HM~' W#$i4L`K -L'lfVu L - T-- ~ ' 1 0' +NiDE UTELIIY EASEMENT 65.7 V ~ ~ R = 30.(}4' ~ ~ 4.~~' bSPREY LANE ~q a 2t~5462~ t S•CALE: 1h=20' k - \ a~I f ~ 10 INLAND ~ LC]T 1 Q, BLOCK 6 PACtiFIC SHELLEY LAKE P.U.U. ~ ENGINEERING 707 west nn • sutts aoo (SM) 458-eM DATE: $Ir23/9fi 0/ Spokrsne, WA 99204 ~ F'N(t (5t39) 458-6844~ - - 5' WIDE t3RA19VAGE EASEMENT TFiACT J R= 30 oo' (caM~nOti ~E►a) L = 4.88' ~A ~ 1 14.61' - e - - - .w - - - - - - - I 1 I ! h W Q ~ a I ~ ° 1 z a- ° cr- z LLI I ~ I ~ I 115.00' I i - i 10' WIpE UT1LITY F-ASLMENT . ►~f 1 r.' ~ -s.~~ ~ ExPfRES 9/24J ~ SGAL'E: 1'° =20' .0/ ~ INLAND LOT 1, B LDCK 7 - PAcIFIC ~ 5'H ELLEY LAK E P . U. a . ENGiINEER1N€~ 707 West 7th . ~uke 200 45$-6M ~ . . C]ATE: 8/23/96 Wk°"a, wA 99204 F►X (5os) 456-68" fflF . ~ • r-C[JRB INLET TYPE 2 GURB iIVLET TYPE 2 o' wiqE uTIurr STA 7+75, TC-2022.1 fi STR 8+25, TC=2022.66 FASE'~ENT 4TH. AVENUE rrPE "Y" CuRB & currER ~ 6' WIDE SIDEWfy+LK - 13',.25' W ~ ~ w _ i.. n ~ 104.$6' POND L 104.89' Ln w _ - ~ - LO~ 126.48 - - F- ~ B[}UNDARY C1F LEVEI _ ~ FLAT BbTTOM AREA I 25' SETBAC94 LiNE . . ~ 1 ~ ~ ~ l a ~ p r I h ~ I ~ ~ Y ~ 6 - , 5' ~ I 30' WIoE sEwER ~ EM ENl . f . 2a• PROPERIY LINE ~ . . . . . . . . . . . . i . . . S~~~4Ck L!!~~ . AIE - - ~ - - - _ • • • . . . . 7.61 f rry EAS ~ CM£Nt i TYPE "R" ROLLED LANE D j CURB 254-6",~ ~ EXP1RES 9/24/ ~ 41 POND BOTTOM ELEV.=2013.73 SCALE: 1"=20' ~ BEF2M ELEV.=2021.33 ~ ► I' ~ 10 I1VLAN[] LaT 3, B L~ CK 7 PAciFIc ~ 5 HELLEY LAK E P. U.D. ENGiNE'ERfNG :707 Ww3t zt, . 5utte 2DO 458:6840 of ~ DATE: 8/23l96 .0/ o Sp°kaite, wA 99204 Fnx: (aos) 458-615" . s - . • ' i ~ sM SPOKANE VALLEY ME DIEPAR'ENT ~ ec: usj in E. 10319 SPRpiGVE AVF,NM SPC3I{ANE, WA 99206 (509) 928-1700 ~ , (509) 927-2227 FAX ~ FACSUW%E COYER SBEET Tv : A, , nATs : (xNvzviDv;w) . FAX NO: VU Ys/ t OOKPARY, , FRvK: Wv. Q F P,AGE+B / ~ ( IHCLUII3NG CAYEH SHSET ) . COt+MENTS : ~ ~ sg ~ L , ~ '4 - r.Wr - - . i ra~ns . To: WTI---, INLAHD PACIftG EHGlNEEFtiNG Ct?. Coa~R~~Y. . 707 west 7m Aye., Suite zcxa qZ7 ` 2-02? - spvkano. wA 99244 ■ FAx NUMgCR_ Tetphnre - {509} +458-6840 B ~ ~~~cc' t~ FAX - (509) 450-8844 . ~ ~4 -s ~ NtlMeER oF OACiEs. .rOa NuMBER ►xcc., CowErt PAGE ~ mom: 4 t . . ~ t~ f► • 4 ~ r ~~►.c..~~ _ ~~...`~r r~~,n,~.~~ C~.,.~~'c- ~ -t~..,~..,~►,, . - . ~ ~ ~ . - FAK TRANSMtSSION , • , ~~W-0 wxf ~ ~C " . '-6 INTER5'~~ON '~o' 6 t.~. ~ ~ ~ . ` . g.- . ~ ~ . r ~ ~ ~ . ~ +cn ~ , , ~ . ~ ~ ~ . ~L 10 r_ ~ ! iN1~~~~C'nON . NOr 10 ~ za , . ~ ~ . . ~ ~t~~yq PAC~F y~ ~1G ~ ~,E~T~ 5 l- f ~ ~ 1 . ~'JN ~ . IN-~ER , , . 2a, ' i . - a.~ , i _ ~~r• ~ ~ 4 , w~ _ T ~ r ~ t- . ~ - Aso ' - E goME~~ ~ ~ . . . . 91, A !YA6 ~ . ~ " r ~C' ~ ~2W t!~~. , ~ ~ ~ Y F ~ ] ~ June 2o, 199s INLANC7 PACIFIC ENCINEERf NG, INC. Spakane Counfy Engineers Engineering Develapment Seniices 1026 West Braadway Avenue Spn'kane, V11ashingtan 99260-0170 Attn: Ed Parry, P. E. Re: Results of Sai[ Cfas$ifiaatinn 7esting Shelley Lake DeveTopment IPE Projecf No. #94143 Enclosed please find the results af sai6s classifcatian testing by our subcvntracttor, Gifford Consuftants, @nc, on five soil samples obtained fram the aboVe referenced residential devefoprnenf. Soil Sample #1 was vbtained from Lane F, 5ta. 24+00, at 15' left of approximafe centerline, at 05 befvw proposed subgrade elevation. Soil Sample #2 was abtained from Rotchford Driwe, 5ta. 30+60, at 5' cight of the approximate cenferline, at 1.5' belvw prapased subgrade eleVation. Soil Sample #3 was obfained frem Lane D, Sta.12+80, 15' right vf approximate centerline, at propased subgrade elevateon. Soil Sample #4 was obtained frQrta hlamestead Lane, Sta.10+00, at approximate _ c:nterEine, at apprvximate prvposed subgrade. Soil Sample #5 rrvas abtained from Timberline Lane, Sta,1 1+35, at 15' right of ap,praximafe center[ine, at approximate propvsed subgrade elevatinn. All soil sarnpfes were obtained by members of our stafF. We abserved soils expased in open utility trenches adjacenf to the sample IDC1tEDfiS, and the samp[es appeared to be represen#ative of the soil conditinns ob5e!'VBd td depth5 af lEe`35t rJ feeg bBl❑W appf03CIrT1ate pCapoSLd 5Ubgfade LleVr']fiOC15. We certify herein that the samples tested were obtained frvm the lvcafions stated abvve, and that based an the data encbsed, the USGS svil cfassifications of GP-GM, GW-GM, GW-GM, GF-GG and GM• ar+e cvrrect #or the samples tested, respectide[y. Piease da nat hesitate to ca11 if yau have any questions regarding this 9etter or other aspects af the project. . Sincerely, P~7, [lVLA1►1D PACCF1C NC va ' • ~ _ : ^e:'i~ (v ~ Jer ;Peter on, P.E. ~ Pra}~ct Engineer I p,~ V~s a M143Uoiltas=,~~ NAL . enc. fig ures 1-5 ~ExPIRES 111271411 ~ 707 lNest 7th • Swte 200 2020 Lakewaod Dr«e • Swte 205 5pokane. 1NA 99204 Coeur d°A Pene, Ip 8381 4 509-459-6840 • FAx 509-458-6844 208-765-7784 • FAX 268-764-7277 3wn By _❑rwg. Date Chocked dy 1-3, ~L e Field Rep._ SI EYE AHALYSE S I HYDR4METER AHALI'Sf 5 SITf OF UPE1iIHC IH It1CHE5 ~ HUM&ER DF MESH PER INCN, U 5 SiAH{3A90 ~ CRAIti 5!I£ 4H IIM _ m va n - , r a ~ o ~ ~ ~ o a o 0 0 0 0 0 ~ a o~ . . . 100 L_•a---- ~ f r y ~ •i ~f--~ _i _ • ' ~ ~ i -Y a~-I_ ~ ~ ~ ~ _y i- ~Y`_' ~ i iT~ F- - ~ -fi ~ ~ 10 go ~ ' - J ~ L__~ + ~ ~ ~ ~ ~ _ f- - - - - f ! - ~.-1_ ~ - .4-_-----;r-*- -a Y~~~ r---~ _ ~ d_`~`i : -4 • ~ 20 a a , =_.L --..~.Y~ ~ t• - ~ - -i -;---_~`e ~ _ _ _ - _ - v ~ ! . ` ~ ; _ i~ _ ~ [ T ~ ~ . ^ _ ~ - vi - _ _ , • - W I ~fi a + ~ ~ v l~ - - • • --•.d ~ - • - , ~ i ~ - - ~~-Y_' ~ ' . ] 0 r t ~ ' ~ ~ r i ` L.L.~.a_~.~-r_--•i~ r ~ q-- ~L~.-r--'-`-g-- u4_ ~ ~-f ~ F •-~---•°j°_-"- ra --F- • - ~-T ~ - m-- - ~ _ ~ _ . - t 0 ~ ~C: GU Y - - w~r. E_ =F ' ~ ~ _ ~ ~ i _ _ _ 7_1_ - ~..~---i ' _ i~t -~_--r-~_ tr°.~.F- ac _~'"`r -'-i-' _~.e.._ ' ° - - - •--i- 1 -_.E tiar 50 ~ --j - - _ r_w.....~e~ g o r„ i W rx ~ x ~ ~ • r-•- _--~p-~ -i ~ . t. ~ : -i • ~ r~.._ _ ~ - - _ -d-'....~ _ _ - ~ ~Yi - e - • - ' 4~ - fi~ ~ .-k~ a- ~ . •._._.Y • - ~ ~i~j_.~ _i . r- • - - I• •I _~_~i- - . --....~!•r-• i i " ~ ~ ' ~ 6'~ ' w v a ~ ~•_i _•s_ - ~ . ~ rt- ; _ ~ M---~ - - ~ _ `~'~`~'~r~ - _ ~ ~ a _ ~ . ~ i_ ~.,.A;----r- i__ • . . r r i ~ • i _ ~ v. _r Y F___~__....-1 ~1. . { t-..~... ~ E - _i - - - ° ---~~-.~..r..___JY ~ _ ~ - - ' F r t ! - ra ..~-4-- _ J E1 ± 0 m w o M ti - ~ tl ~ O O P 6 a 4~ O Q O O CRAIN SS2E IH MfLIIMEiEitS ' • o ~ ° ° C~ ~ ` COBBLE$ [ ~~XASf I FIHE I SOARSE I MEflIUM I FIHE I F1HE5 I ' I CRAYEL ~ SAkO 1 . .AMpLf I HAi LL PL Po I S, C GLAS5[FICAFI[IH ~ w c % Shal ley take DF3VBZQpRIBRt H v aEr rH• F r t] ane F 0.5'below GF'-GM Slightly silty* sandy GRAVEL 2.5 Veradala, Weshington rA24+00 S.G. GRAIN SIZE CLASSIFICATTOH 3"L7 June 1996 E-1716-O1 G1FFOR❑ COAlSt1L7ANT5. 1NC. GeotechnEcal Englnears awn By Drwg. pate (n -Lj'q_jo Checked gaaf Field Rep,_ ( SI EYE AHAtYSlS I 1iY0RaMETER AHALI'sl S ~ ~ $12E OF OPENIHG IH IHCHE5 I HEfµRER OF MESH ?ER 1FiCH I1 S STR'N9AR0 ~ CAAIN SIdE IH MM ~ ry m b Q w ~o tr ' ' O O G O P W w O o r rT C] O G O 6 m e~ r.. ~ n n ~ n ~ v rr r fa .r c o ~p o 0 o n ea v o v 0 -rT ~~I-•}~r~^ ~ i o i e~ d~}•~~~~-- - _i _ t - I - • - _.R_~ I"~".-f ~ ! ; . ~ 9 ~ ~ ~ i " ~ ".~e~ ~ - • _ ~ ~ ~ i ' • _ , -r-~~.~-•.»~~ 1 0 .._...W _~v ~ ~ ~ ~ -~-°-_~~~•t- Jr~ a a ~ ' ---i°_ ° - ~ ~ - - ~ J_r ~ 20 - _ ^ _ I ! } ~ j i. ; ; . ~Tp. v =.~.1 + _ i W ~ ' _ 36 ra ~ . ~...~~-S ~ ° .~,i-;.~~-~.r., - F•-.~ r ~ _ _ ' _1~ _ _.._~..r._ ' . • ~'~k.'~.•~•_... - ~ ~ } f~ : , .--~•-r ~ ~cz 60 40 ~ - " 1..._T I~ J ~ ~ ' _r i L Yr ~ M ~ f~~~ ~ w a a -~-~i -f-_-}--_° ~ .-1=. s_~ ; ~ - -f • ` j . ~ _ _ s Q y L ~ ~ - ~ - ~ • ~ - ~ f _ i. - - { - _ ` r'_.'-_~"'__ _ ~C . ~ - ^ --I ~ _ _ ~°--F~: _ ----I- ~ - - -f~---.._` ~ ~ - _ ~ .~...lY ~o J_.__ ~ . x a o ~ ~ ~ ~ - _ WL ~ ~ ' ' .d..~~~ ~ _ .-.1 ~ ~ F" _ G' - - - - - ~ cL - ~~_.•r! ~ r.. =i i -i- ~ ~ -j f--r _.._w ~ . L. _ ~ 7 U ~ - - --E-- ~ -1~ • ~ _ _i_ . - ; • E - ~ o. r------ ° rs. ~ y0 _ ~ _~_r ~ .*.-_`i - i~ ~~--~k ~ J I ~ `~~_E- . - _-•1• ~ 20 r - - ~ , ~ ~T -i f _1 , . _ --6 :...p_.#.__ . w_~ B fl - - - - - ' + -~~f - - - - - i--. _ - - -r ~ ~ ~ _ i ~ ` : ~--~i- - ~ _ ~ - ~~~:m. ~ " .i.; ; ~..~~ti._ _ ' . ° _ - ~ i : _ ~ - ! i . -...1 _ ~ j • - : ~ i- j i ° ~ - ; • 9 0 [I F~_• ' • {I''' ' "_I ~ Fy- 1 ~ ~I-~~ ' - _~.W~~ ~ ~ ~ ...~1 f~Y.~~' ~t r ~ 7~~ r f ' ~ ~ } y~ 1 ` _.4 .-~9•~- J-~ 4 0 I . i LLJ.L~ t.i~.:~ _ 1 o e 4 0 ry ~o m m ~ - • - rv ^ 4 o f a o a e c v a o GRAlN S12E 1H MLLLSMETERS " ' ° ° ~ ° • - ~ C~IIBLES [ CpARSC I Ft ME l CflARSE I ME~91UM J FIHf ~ fl~~~ I CRAYEL 1 SAHiI iA3APLE ~'NAi Ll ~ AL PI Ha , AfPZH-FT [1 ,S.C Ci~A53iFICATIOH x c % 5helpey Lake DeVelopment :otch- 1.5'belaw GW-GM Slfghtly silty, sandy GRAVEL 1,4 ord ❑r, S.G. Varadale, Washfngton ' ' ' • • GRAI H 51 ZE CEAS51 F1 CATIOH ;ra34+6(i )IRT Jun$ 1996 E-7715-01 GIFFOR❑ CGNSLJL7AiVTS. 9NC. GevteChnical En9lneers rawn By brwg. bate_ (a'ly'g~ Checked QY"Field Rep._ SI EYE ANALY51 S I HYDRDM£TER AHALY3! s 0 SddE Of aPE1i6HC IH INCIfES ~ HUMIBEfl DF MESFE AIER tHCH, l1 5 SiAi1QAR9 ~ GHA IN 512E Ik Mht ~ ~v m 4 o m m a n r. - ~ • o o a o 4 n eO ~ e - o 0 o v e~ o W ~ _ h o 0 o v c o n o v v . o 100 7^ - ~ ~"_~-"__f_f ~ E a i t-"_`i _~C . ~~~Y. :__~'~_~_}J. ~-Y- _ -~--1 a _i.--k ---k---°° ~ 'i r Y i_ . _ ! - - f,; ' . ~ - - - - - ~ . _ _ • _ _ ~ I y . _ -j ~ - ° _ ~ i ~ ~ r - k.~... 110 - • ' - ~ - I "V ~s ~ ~ ~ -_.7_.~..3 ~ s~ ~ kT ~f. ~ i e ~ - - ~~_t i•.bF~-4_~T-- 0 20 6 - - - ~~i. PE _ . _ r ~ ' _ I'-•_ ~ - - _ • . I r_ . - - ~ - - - - - - _ _ ~ ' - _ a v ~ 70 i---J ~°i- r J - ~L.~_` • ~i~_ s ~ ~ _e _ ~ - I o 1-' . . ~ Y ~ _ _.~l _ r„O ~ - - - L.~.r__ --i ! ; e..._~_°t'_ I~~.~-•-~ - i h : 40 3C ~ 6 Q ~ ~ ' __~_,w i~ j I~- ~ I ~-=r L--"'~ Y- Y [s9 m - x ~ -cc • ~ . , i - •-T ~ { _ . _ ~ _ o ~ t. - fi~~ ~ ~ . j •-•.~.._~F . . f _ _ r- . . ~ + n 6 4 ~ ~ ~ • • !s - - - ~.~-~I u~ ~ - _ _ _ _--i _ i _ - l r ~ - . ~ i ~ . - Y• ~ . ~_•T-• -°~k~_---- f4 m i•- • at C-'~ w a` ~3--~- I- \ 1 ~ ~ ~ ^ • ^A°- ~ ' , ^a• - • cG ci. 14 r -j---» ~s_ 7 0 e-~_._._e uY d .4~_- ' - i-; - I- -Y , _ ~ ; } { '.7.}... • ~ 7 0 - - - - r - y - ' _ .a~~~_. . - - -~-'-'-y-S `2 1" ~ ~ ~ - a d i s~__ _ _ ' - ` _ i•-- - _ ~ - _ ~ r_- _ ~ ~ _ ' ~ .-j- ~ ' - ^ ~ i~ ~ --I--• W _ '1-~ _ ~ - ~:..Y ~ 40 I rt-`~ • ~`~.-----~I---•~--l-~-~ - ..i l.! 00 m ~ H - • • , . • • O o O 9' G o O 6 P O 4 C'RA9N SITE qN MILLIMETERS ' • • ° ° ° ° 4 ~ I COSBLES ! ea+~RSE 1 rIHE I co-Aese I MEOIuM f FaHZ + F1NE5 ~ f.R+YEL I stiHU I "WalE I OEPTH-FT I t].S C GLA551FfCATIBH NAT, LL PL Pi ff fl I~` ~ ~ 5rislley l'.ake 4avelapment ane C] Apprvx,SG GW-GM S1i ightly siltys sandy GRAVEL 2.5 ' Veradale, Washingtvn TA12+80 5,RT GRAIH Sl2E CLATSIFICAilON June 1996 E-1716-07 GlFFaRD Ci7NSULTRNTS. f1VC. GeotffchnEce! EngErteers , Orawn Sy- ~r~ _ ❑rrrg. Date (0'~1= ~~D Ghecked Ry~~t_., Field Rep.`P^_ . I 51 EYE RHALYSf 5 f HYOROhIETER AHAk.YSI S I SIdF Of OPENtryL IH 1NLHE5 I HUMDER QF MCSH PER 1HCH U 5 STFRpFRO 6 GdtAIH SIIE PH Mdf ~ ry ~ v ` ^ ~ m ° a ° ~ o o a ~ e o 0 0 0 m r~ r. ~ _ v~ _ 4 r. ~ ~a ~ 100 ~ 'A L i....i..._ ~ r~____=R --~.e~.~ _ we _~.Y..~~ m.3~---~-`--j e-` -j • 1-_•- ~ a - ~ L T - ~ ,___T__ ~ ~ 1' ~.4_..~ t0 - y - A~ ~ ~1 - - - - ! 3 ~ ~ t -i ~ - 20 ~ ~}-~-`-i ~ jj . _ : _ .i--•--- - -j i... ~j_ . . _i -I _ 4 7 0 ~ - 9 4-..,_. - ~r I ~ I ~ ~ ' = , 3 0 ~ ~ ' _--i r - ~T~~+~ ~ ~ ~L ~ _W__-~ i _ _ , _•~.----f--6°~.-t °*-"--_i»~.~_ __._e r - , - -r----.. ; ~ i ~ ~ G ~ a{ ~ _-~r._-. ; T ----r- ~ ~ '"I- - ~ i e Q ~ ~ f°--~-- -i _ - f ` ' -f_'=~= L_.~ f~ ~ ~ _ 1 1 . ~L~ r_._. r _._4__ ~t - - „ _ • , m _ _ Y~ ~-f -I• ~ i - ~ 5 o w ~ - ~ - --i--_~_.___ _L ~ ~ ~F ~ _ ~ -~--•..r•-••~a~ ~ . s S 0 ~_"'_~-T_ _ _ y o. ~ _ ~ - 4., ~ • _ 60 - e'Y i ~ ~ i ~ ; _~..~..._I r _ f - -t----~••• • _ ~ _ ~ a- - --F; ui , Of ~ _ • ~ ~ ~ - - 7'' . ~ ~ W 0. ~ 0 20 ---r - - _ ~ ' : , i ~-t---}-~-•-E t, f-~--~---- a a o _ _ _ . - ~ ' - ' --•~+.~..,"~`.~~'_.-L_ E~-_ --_.f ao ~ - - i- } -ry ~ - - - l - ` • - ~ - - _ h - • I ~ _.r_._.u- i~•.~.-._--- ~ - ~ _-~I-- ~~.-i-'{~- • - 0 - - - ~ - ~ _•r-^[ - • ~ - - T-ri r - • ~ ~ ~ ~ 1 4 1 0 D 0 0 o a o o m m "r r~ r. ~ ~a er - ~ ~o n 0 0 ~ io .r ra n - • • . • • o 0 0 0 0 0 o r+ GRAIN 512E [H MILLIMEFERS ' ' ' •°v o 0 0 0 0 f CpBBLES [ CffApSE i I coaxse I MeoiuM ~ FtNf I FiNES I ~ CR!{YEL I sxrso i , sspa~C 4EPiN•F7 I I~ S C ~ CLASSIFICAqiOH I wNc T x L L P4 ~Pi ~ SheTIey Lake 4avalvpment Nome- Approx.SG GP-GC Clayey, sandy GRAVEL 1.0 29 aa 12 VprEdpIp+ Wa5hingtnn 5tead Ln. GRAIH S12E CLASSIFiCAT10H ;TA 10+100 ,lurta 1996 E1716-01 GIFFORD CONS[7LTANTS, INC. Geotechnical Errginaers s ~ (7rawn By • Drwg. Date_Zo.:-/'r`_~L_° Cheeked dYField Rep.~_~__- . ~ SI EYE AHALY5i S f HYDR4METER AHALYSf S ~ ~ 51dE OF aPENtHG Irr INCHFS I HUMpfR OF MESH FCR IHCN U S Si0~ HOAFp ~ CRAIN 51f[ fH Mk M ° m ~ ra e Q o d a a v ' ~ • ° ~ H c o ~o d o 0 0 o a . C. 0 0 - - 100 rs~ ~ - u-•- - ~ iY...____~._.__ - a ~ ul Y 9 0 00 ~ ~ KT~0 70 -.-r_' I i I ~ ~ •i•- ~ ! ~ ~ ~ i h -e_.....~ 70 ~ ~ a ~ ~ • - - ~~.-.f.1'-~°r'~_ ~ ~ ~ ~.,-L~ • _,.___..L I ~ y .I ~ o - _ l - ~ i ....~a,- ~ L'~ _ -~.._..e I I ~ ~ ~v e._-_• ~ -Y~ L ~ _ _ i R,_r ~ Lu 013 ~ -r ~ , ~~I rr, j__ ~ i ~ i• ° • ~~--'Z= c o 50 W s o • , • , , + s~c f m• ~ T!•- x ~ ' r' ._.~--r ~ r~•. ~ -r~s-p-- ~ ! CJ a I 1 I ~ ~ ! '~i ; _ • $ o ~ ~ 70 ~ a so _ , r-~ - ~ _ _ - - - - + ~ q , - , ~ - A--- - d ~ ---L ~•i- _ Z q 7 _ - - --•.~.~r.j ~ j' - i ~e. j ~ -r'---m SO - ~.v-l~-- • ~r- p O _ E_~ _ __i~ ' ~ ~ - _ - F ! ~~e. ~.W F-- =_e _ - _ - f.~~ .-g--- ~ ~ -_,ao ~ v I ] GRAIN 51IE IH MiLL9METERS • ` • ° ° ° ° ° ° + CDeBLES ~ S°+RSE I FsME I caAesc I_ MFaiun+ 1 FIHE ~ IFIHES ~ GRAVEL l SAHfl SRMPLf ~ pEPTH.Fi ~ v.S C CLASSIFICAtIOH ~rrHci a LL Pti PS Ho Shelley Lake beVelopment Timber- A pprox SG GH Silty sandy GFtAVEL 2.0 26 23 3 Veradale. Washingtan Line Lane GRA[ H SI ZE GLASSlFI CdTPnN 5FA11+35 Juna, 1996 E-1716-07 15~R7 GlFFdRD CC)NSULTANTS, iNC. GeotechNcal Englrseers MAY 1p199~ C(~ LJ N`~' " Y E• s A,, ~T 1-7 DNLSION dF ENGINEERIPVG Ad+FD RDAi?5 • A 171Vf5IC3N OF THE P'UBLIC WOAKS DEPAATMENT William A ]ohns, P.E., Caunty Engineer L7enma M. S¢ott, P.E., Directvr May 8, 1996 I~ St InNhft ~Tadd Whipple, P. E. ~ IPEC Buster Heitrnan Landmark Builders $205 North Divisivn Spc+kane, WA 99208 SUBJECT: P1750 - SheHey Lake P.U.D. 2nd Review Gentlemen: - T]ue to the nurnber and extent of recurring items, a cursory review vf the rvad, drainage, grading, and erosian contrvl plans, and the drainage r.alculations far this project has been accotnplished. Areas of cancern ta us are indicated on the attached list. Please make the necessary rrarrectaons and resubmit thern to Chis offce in vrtier that the revrew pracess may proceed. Y-Vhen the plans Eire res_Ubmitted^p1ease_jna&a11c1s on r.he reVised orint in color, ~lease ensure that alI the plans and calculatians are subrnitted as one camglete svbmittal. If you haVe any questians ahout rhis review, please contaet Ed Farry at 456-3+500. Thank you. Very truly yours, Wiliiam A. Johrs, P. E. Spokane Cvunty Engineer ~rl r~~ - Eaw~ T. ry, ~r. , P. E. Plans Review Engineer encls: Plans (1 set: roadsldrainage; 1 set: gradingleroston cvntrol) - T}rainage Calculatiaris Camments (5 pages) cc: projecc file reviewer {camments only} 1026 WBraadway Ave • Spokane, WA 39260-0170 •[50=1] 456-3600 FA7S {509} 324-347$ TDD {509} 324-3166 xEVEEvv COnDdENTs sPoKANE couNTY DIVISTON OF ENGWEERINfa & R[3.4D5 1025 W SROADWAY, SP4KANB WA 99260-0710 1'Hf7NE (509)456-3600 FAX (509)324-3478 REVIEW 2 - - - - - - - - - - REVIEWER: Lci PaxrV PR["]JECT P1750 DATE: 9 Mav 96 PRQJECT N.A.ME: Shellev La1ce P.U.D. Due to the extent af recurrirzg items, these cvrttments are general in narure, and reflect a cursary review of thzs suhmittaL Please ensure that the p2ans and cak-udatinn.s conform to the applicahle standrards, and govd enganeeting practice 2nd Review: GENERAL _ 1. Plans will need to be signed by the Develvper priar to approval by the County 2. Plans fvr the entire length af Rotchford Drive (ger oonditians af the design deviatian - see County Engineer's detter dated 22 Tan 96) were nat received wi[h this submittal 3. Engineer°s Gondition #40 requires that the 4th Avenue intersectivn at Canklin be designed as a 4-way intersection. How does this rvad alignrnent fulfill this cvnditian? Please call t¢ discuss. 4. CL elevations at road intersections ne.ed to be coordinated between ttte various plan sheets 5. Street naxnes in the stativn equatians need to be cvvrdinated with the street names shvwn on the plans. 6. Stxeet narnes need to be ccsvrdinated with the names showm mn the plat 7. The plans wi11 need the approval af the Fire L]istrict privr to approuai by the Cvunty 8. Sermlbanlc elevations ax pands needs to set to at least 0.2' above the lvwest TIC at the pand. 9. Finished grade confiours need to be shawn for ali drainage swales ROAYI & DRATIVAGE PLANS - Sheet 2 1. Prvvide "R" Value tests for all soil group types to verify paVement sections. Other methods vf pavement sectian design may be acceptable to the County Engineer, upvn submittal af a Design DeV iation Request 1tEVTEW CC]1VLLVIENTS Page 2 vf S S May 96 PkOJECT # P37-5(L REVIEW # 2 2. The width indicated for Gvnklin. Rd. (40') dves nat meet_ the _44' width required in Engineer's Conditivn #25. The sectian for Coniclin Road shauld also andicate the 2-way left turn lane nated in that canditivn. 3. Where a pedestrian pathway is prvVide€1 as part of the roadway width, the sectian typicaliy has an offset crawn sv that vehicles dv nvt straddte the crown 4. Rvad sectivts need to indicafe existing RIW, prapvsed RIW, future acqu'rsitian area, and existing paving, as apprapriate Sheet 3 1. Prnvide warning signs for the reduced speeds as per the design deviation cvnditivns. 2. Contact the County Traffic Engineer to determine tager requirements to tratisitian from 40' width south of 4th Awenue Co 44' vvidth north vf 4th Avenue Prouide the superelevation informativn for the Gurraes alang Rotchfvrd Drive. Sheet 4: 1. 'I7ge vertical curve at PVI 43+4[] does not provide adequate sight distance for the grades, terrain, and rvad classifir-ation 2. The design needs ta pravide 208 treatment for the nerv paving, as a miriimum. The drywell in the curbiine at Conklin 40+49 RT does not accamplish this. Sheet 5: 1. The design needs tv prvvide 208 treatiment for the new paving, as a minimum. The drywell in the curbline at 4th Avenue 6+75 RT dves nvt accorriplish this. 2. Curb grade sheets for 4th. Ave, widening were nvt receiued with this subanittal. - 3. The pavement transition on 4th Avenue needs ta provide a taper length of at least 14:1 (100' minimum) _ 4. Curb grades vn 4th A,ve. at'e below the cQUnty minimutn of 4].5 the County Engineer's apprvvai of a❑esign Deviatinn RequesC is needed prior ta plan apprvval. REVIOEW COM4EN"I'S Page 3 vF 5 S May 9d PRQJECT # P1750 _ REVIEW # 2 5. The horizontal curve CL (2581 does nvt meet the 81 SGRS minimum radius fvr a Collect,or Arterial an €Iak terra'tn (715') . 5hee# b: Na Cornments at this time 5heet 7: 1. The "knuekle" intersectians will need the Counry Engineer's appraval af a Design Deuiat'rvn Request. . Writterr approual fram the Fire I]istrict shvuld be included ass part vf the justification. 2. CL bearing & distance need to be shvwn for the ieg crf the "T" turnaraund at the nartherly terminus of Homestead L,ane Staeet 8: Na Cvmmen#s at t.his time Sheet 9: Na Comrnents at this time Sheet 14: No Commenrs at this tirrte sheet 11: 1. Retaining vvall; a. Neerl to inciude the necessary soifls infarrnativn, calcs, etc., to show chat the wall Fs design ed prvperly. For example: (1) ICBO report #4599 {contained in the Keystone manufacturer's baak} indicates that a soils repvrt must te submitted. The soils report needs to confvrm to Section 2905 Qf the 91 UBC (which is naw 5ectivn 1804 vf the 94 UBC). The "geatechnicat review" pravided in yonr 21 march 95 letter does nvt appear to address the required iCems. In additivn, there are elements of the geotechnical review (relvcation of the he.el draira to the subgrade elevativn of the crushed rock bearing cvurse, 2' wxdth vf backdrain up the heigh[ of the wall, geogrid reinfvrcement, ete.,} which are nat indicated ❑n the wa11 detaiL The P.E. starnp an the geotechnical reView dves nvt bear the date of signature. - (2) The Keystone Buyline imfvrmativn (cnnfia,ined in the Keystone manufacturer's book) - indir-ates tliat geogrid is neecied far walls with sloping backfill& b. Need to indicate where the faundation drains wilI daylight, and prowide some sart of vermin - pratection - „ c. The retaining wall 1ocativn needs to he eoardinated' with the grading plan. Finished grade cvntours in the vicinity of the wall need to be shovvn as part of either the road plan.s or the wall detail; grading easements may be needed - d, Need to indicate startlend stations fflr the wall construction e. L,andscaping needs to drain to the street (2% mxn.) REVTEW COM11'ENTS Page 4 of S S 1VIay 96 Pit€).1EGT # P1750 REV1EW # 2 f. Acut-off swale is typirally prvvided at the top of the wall 2. The floor eleuatian at Pand H (2024.87) needs to be caordinateci with the grading plan (2052), and with the curb eleVativns for Rotchford F]rive. Finished grade contours need to be shown 3. Ts the neck in Pond G wide enough to construct and maintain properly? Sheet 12: ` 1. The griVate road entry onto fihe Rotchfnrd I]riVe temparary cul-de-sac needs to be cvnstructed as a driveway entry, to deiineate the public roads from the private rvads 2. The temparary easement shvuld be configured as separate easements far the public 3. A cvncrete vr ACP pad (typically 6' x 6') shouid be provided at the inlet to the pipe at the temporary drainage pand. Considerativn shvuld be given to alsv providFng a sump to trap out sediment prior to discharge inta the pond -GRADThTf°'~ AND EROSION C0yTR0L.PI,AIyS l. As was rrtentianM in the previQUS cvmrnents for these plans {Nnvember 1$95}, the straw bales are not likely to be effectiVe as propvsed, due to excessive ughilI areas, 1ong surface Iengths, and steep slvges Some additionai infvrmati4n abvut the use vf straw hales in included #'or yaur infarmativn 2. How w'rll the topsviI stvckpiles be stabiiizedlprQtected from ervsian? 3. Are there any limlts vn the amount vf disturbed area, and how Pvng the disturbed areas can remain vpen befrre some sort af stabilizing means is mandatory? 4. Your transmittal letter (29 Feb 1996) indicates that na calculativns were prowided for the sumpJsediment trap at Che IVW corner af the site. The grading p1an indicates that an _existing is being utilizei for this putpose, with svme grading to exgand the naturai sump area. Calculatians are still meeded to show that the praposed sump is properly sized. _ ~'ALCTTLAT~ - 1. The basin Iimits shawn ❑n the basin mag neec] to be caardinated with the grading plari, as well as with the location of the various catcH basins REVIEW CONFIAENTS Page 5 vf 5 S Nlay 95 P'ROTECT # P173-0- REVIIEW # 2 2. Offsite topography needs to extend far enough to define the basin limits 3. Offsi#e basins neeci to be accvunted far in the design. How are the flovs+s fXVm the offsite basin svuth ❑f basan A managed? 4. Pre-develvped and pvst development flavvs fDr the 6asins discharging vff the site need to be analyzed to deterrnine what, if any, mitigating measures may be needed to manage flvws - 5. Pravide caIculatians for the p'rpe to temp pond A. b. Pipe from CBI to CB 2 does nat appear to be adequately sia.ed far the flows intv the gipe; I'lease chezk & resalve. P1ease recheck other pipes to ersure that they are adequately sia.ed - a pipe network analysis is t}+picalIy done when a pipe system is intended. 7.werify the widxh af panding in the street at the locatians where a sump canditson exists. 208 LCIT FLANS - 1. Lot Plans were not received with this submittal. F-ASENENU 1. Sight distance easements wiil be needed • . • ~ REVIEW COMMENTS sPoxANE couNTY DIvlsION OF ENGINEERING & ROAns fID 1[}26 W BRaADWAY, SPOKANE Wp► 992641-0710 F'H[}IVE {509}456-36[}0 FAX (509)324-347$ kec e- k,"► ►9--"t,"J -..7 ~ ~1'4(; ~ SL]BMITTAL 3 ~ REVIEWER: Ed Parrv PR(3TECT F1750 ' DATE: Aueust 16. 1996 PRC]JECT IiYAME: Staellev Lake P.U.D. Due to the extent af recurring iterm, these comments are general in nature, arut refZect a cursory re►+iew of this submittal. F2ease ensure that aIl cornrnents are rescrlued, and that the,plans and calculativns conforrn to the applicabde standards, and good engineering pracdice, prior to resubrnittal Previously noted commerntts, still pending resolution: 2nd Review: GENERAL to Oz 5,-7,u,j 1. Plans wi11 need to be signed by the I]eveloper prior to approval hy the Caranty(Stidl needed) -,,-~PZans far the entire length vf Rotchfvrd Drive (per canditiQns of the design deviativn -see County Engineer's letter dated 22 Jan 96) were not received vuith this submittal (Received 14 Aug 96. Fvr fuxure reference, please en.sure thcat the P. E. stamp bears a full signature) ' . Engineer's Canditinn #40 requires that the 4th Avenue intersection at Cvnklin be designed as a 4-way intersectian. How does this road aldgnment fulfill th' cond' 'o ~~'lease call t'~ Odiscuss. (P e see attached i1Zeti1l?} ~e~I ~~~y~ Street names need to be cvvrdinaCed with the names shvwn on the plat (Are Lane "C" Qnd Lane "F" named as such on the pdat?) . The plans v~+i11 need the appr~ava1 vf the Fire DistriCk privr to apprvVal iby t'~e Ct~unty (Still needer~,prt~v~ by Fire~1 ist,~ct of roc~d layout in the full tan set A tl ~ e` ~ ~ v$. Bermlbank elevations at pvnds needs to set to at least 0.2' abQve the tvwest TIC at the pvnd. (Stild needs to be indicated at "t}'Pical 208 wlsxdeva2k" detail) ~Finisheci grade cantvurs need to be shown far all drainage swafles (Stzll need to cpardirtate with the grading plan, e. g. : Pand "H . . REVILW Cf]NIlVIENTS Page 2 of S 16 August 9b PROJECT # P1750 REVIEW # 3 ROA & DRAIlVAGE PLANS ~ S ht 2 1 PrvVide "R" Value tests far all soil grvup types ta verify pavement sectians. Other methods of pavemena ecti~n design maY be accePtabYe to the CvuntY Engineer, uPvn submittal of a Design DeViativn Request (Calcs for rcr design, crard the Desi$n IJeviatian for the rQad design method, were nat received with this submittal; ple e eresure thert a!l necessary pe5ign I3eviatzons have been approved prior to the next subrnittal of the plans) The width indicatel fvr Cvnkiin Rd, (4(]') daes nat meet the 44' width required in Engineer's Canditivn #25. he section fvr Cvnkliri Rvad sbuuld also indicate the Z-way left turn lane nated in that candition. (Engineer's C'onditian #25 requires a44' wadth,,;f"rvm 4th Ave ta Sprague for Canklan; the Cvnklin Rvad section frorrt Sta, 41 +S4 to Sprague zs vnly 44' (curb face to edge vf,vauang). A plan fur the 2-way left-turrt larae zs also needed) . vad sectians need to ir~dicate existing RIW, prQpQSed i~11~, futur~e acquisitir~n area, and existir~g paving, apprvpriate (Sectiorrs for Cvraklar~ arui 4th Ave do rwt rrar~reate the ~tent v,~ exi.stang paving. This is needed .~r~ th t th amo r7t ~ widening anc~ incoming te~per length cr~n be accr~rately evalucated) ,Sheet 4: 2UThe design needs to prvvide 208 treatment fvr the new paving, as a minimum. The drywell 3n the curhline Cvnklin 40+49 RT does nvt acrvmpiish this. {208 swale sizing ►rot checked due to extentlsignicance of other uraresodved comments} ~ 111,r~~5e ct ke--c-r- Sheet 5: 1. The design needs to prvVide 208 treatment for the newr paving, as a rninirnum. The drywell sn the curbIine at 4th Auenue 6+75 RT dves not complish this. (ZQS s-wal sizing nvt c,~ecke~! due to erter~tlsignicance vf other unresoLved cc~rnments} ps ,4~r~S ~ G~. AL i ~ ~emenC transition an 4th Avenue needs tv provide a taper length o~f a~l,~ast 10: I {100' mn i um} ("The plans indicate that the added paving width at the west plat boundary is orc the order ofA2 Ofeet, the I00' taper pr vided does not meet the 1 a;1 tcrper ratio) 5A-e-"-T '2- `f 4. Curb gsades on 4th Ave. are below the county minlmum of 0.5 f; the Cvunty Engineer's approval of a Design Deviation Request is needed pricar to plan approval. (The Design Devirttion war not received wrth this submittal; please enrure that all necessary Desigrt Devia.tivjas have be~en~ap,~roved priar to the rtext submattal of the plans) ~~(,D"-J }tA REVIEW COMNEENTS Page 3 of 5 16 August 96 PROJECT # P1750 REVIEW # 3 Sheet 7: 1. The "knu ' e" intersections will need the County Engineer's approval of a Design Deviation Request. Written app val from the Fire District should be included as part of the justification. (The Design Deviation was not re eived with this submittal; please ensure that all necessary Design Deviations have been approved prior to t e r~ext submittal of the plans) • /"-Sheet 11: ~ 1. Retaining wall: (Now Sheet 14) a. Need to include the necessary soils information, calcs, etc., to show that the wall is design ed properly. For example: (1) ICBO report #4599 (contained in the Keystone manufacturer's book) indicates that a soils report must be submitted. The soils report needs to conform to Section 2905 of the 91 UBC (which is now Section 1804 of the 94 UBC). The "geotechnical review" provided in your 21 march 96 letter does not appear to address the required items. 1n addition, there are elements of the geotechnical review (relocation of the heel drain to the subgrade elevation of the crushed rock bearing course, 2' width of backdrain up the height of the wall, geogrid reinforcement, etc.,) which are not indicated on the wall detail. The P.E. stamp on the ~ geotechnical review does not bear the date of signature. (RCW and WAC require that the signature on a P.E. stamp be accompanied by the date the stamp was signed. A"site-specifzc evaluation" for geogrid reinforced ~ segmental retaining walls entails a detailed evaluation of the sotls at the proposed wall location - please refer ~ to NCMA TR12 7) ~ (2) The Keystone Buyline information (contained in the Keystone manufacturer's book) indicates that geogrid is needed for walls with sloping backfills ~ (A copy of the calculations referenced in Jerry Peterson's letter was not received with this submittal. The soils ~ gradation data included in this submittal indicates that the soils are at least somewhat variable over the site. While the friction ang[e assumed appears to be conservative with respect to that typically encountered for the various soil types that are found in a typical soil column of the Garrison series, an extract from your technical reference source would be appreciated. This assumption should be accompanied at least by test pit log data at the proposed wall location. Technical data on the proposed geo-reinforcement should a[so be included) c. The retaining wall location needs to be coordinated with the grading plan. Finished grade contours in the vicinity of the wall need to be shown as part of either the road plans or the wall detail; grading easements may be needed (Coordination with the grading plan, as well as easements, is still needed) e. Landscaping needs to drain to the street (2 % min.) (Still need a callout for this at the "Public Road" 1 section detail) The floor elevation at Pond H(2020.87) needs to be coordinated with the grading plan (2052), and with the "/curb elevations for Rotchford Drive. Finished grade contours need to be shown (Coordination with the grading plan is still needed. The berm callout needs to be coordinated with the grading contours shown; spot elevations for the top of berm would be helpful. Please review the locations of the 2047 and 2048 contours across the sidewalk - at this scale, the sidewalk slopes are between 12 % and 16 the slope indicated on the grading plan slope is closer to 1%) , REVIEW CC]MMENTS Fage 4 af 5 16 August 96 PRQJECT # P1750 REVEEW # 3 ~he 12: he priaate road entry vntv the RvtcY~fc~rti Orive temporarry cul-de-sac needs to be cvnstructed as a driveway ~ntry, to delineate the pub1ic rvads from the priVate roads (Signing such as "errd of publre roadfstart o~'private racrd"", "end of County Maintenance" will be an acceptable alternatave to the priaate driveway entry. Speci~'ie language a,nd locaxron should be coQrdinated with the Caunty Maintenrnce Engrneer (Phi1 Barta, P.E.), Sign locatavns need to be cvordinated with ea.semerat limits for the pubdic racrd temporary turnaround) he temp c~rary easement should he ce~nfgured ~ sPpat'ate easetnenCs for the public (Separate eu.rements for t~e publac road turnaround and the private roud turncarvund were not indicated, nor were easement descriptions received with this suhminal) GRA►DTNG AND ER(]ST()N CQNTR(3L PLANS (NQt checked due to e-xtenilsignr;~cance of ather unresolved /to ments ) s was mentioned in the previvus camments F~rr these plans (Navember 1995), the straw bales are nvt li~Cely e effecaiVe as propased, due to excessiVe uphill areas, lang surface lengths, and steep slvpes. Svme additivnal infvrmation about the use of straw bales in rncluded far yaur infvrmation 3. Are there any lirnits ❑n the amount of disturhed area, and how lvng the disturbed areas can remain open laefvre some sart vf stabilizin,g means is rnandat+ory? 4. - ur transmittal letter (29 Feb 1996) indicates that no calculatians were provided for the sumplsediment trap the NW caanee of the site. The grading plan indicates Chat an existing is being utilyzed for this purpose, with sorne grading to expand the natural sump area. Calculatians are still needed to shova that the prvposed sump is properly sized. . CALCULATIONS (Not checked due to extentlsignicance of Qther unresolverl comments) t-X. The basin limits shown ❑n the basin map need to be coordinated with the grading plan, as we11 as with the lvcation af the various catch basins . C3ffsite topography neeais to extend far enough to define the basin limits 3. ffsife basins need to be cc unted f r'nthe design. Ho a e the flaws fram th r~ffsite basin svuth of basir~ A anaged? ~i' G " titt s6v (Direineevwhat, d~eiaped and post deve1vpment flows fvr the bas%ns discharging off the site r~eed to be analyzed to if any, mitigating rneasures may be needed tv mana e flvw~ 5. Frovide calculatiQns for the pipe to temp pond A. ~ ~ REVIEV4' COMMENTS Page 5 af 5 16 August 96 PROJECT # P1756 REVIEW # 3 5. ipe fram CB1 to CB 2 dves ncat appear to be adequately sized for the flaws rntv the pipe; Please check r vlve. Please recheck other pipes tv ensure that they are adequately sized - a pipe netwvrk analysis is typically dvne when a piAe system is intended. 1, Cify the vvidth ❑f pandimg in the street at the lo~tivns rvhere a sump conditivn exdsts. A M'ENTS Si ht distance easements wi11 he needed (Dimension,r for easements shown an plars need to be r'ndicated) Y August 16, 1996 ~ pw~ Todd Whipple, P.E. ~ IPEC ~ Buster Heitman Landmark Builders 8205 North Division Spokane, WA 99208 SUBJECT: P1750 - Shelley Lake P.U.D. 4th Avenue/Conklin Road Intersection Gentlemen: As you are aware, Engineer's Condition #'s 14, 39, and 40 concern a"Tract X" road for 4th Avenue from Conklin to the eastern boundary of this plat, and the configuration of the 4th Avenue/Conklin Road intersection so that a 4-way intersection may be constructed for (as contemplated at the time of the preliminary approval) some future extension of 4th Avenue. These conditions were precipitated by intended spacing between access points for the South Valley Arterial, which at that time was intended as a Limited Access Principal Arterial. In the time since the preliminary approval of this plat, the South Valley Arterial concept has been modified to that of a"couplet", similaz to those found along the Maple - Ash and Division - Ruby corridors. This concept will allow more frequent at-grade access along the corridor of the South Valley Arterial. In our conversations and your plan submittals to date, you have indicated that you do not intend to provide either the "Tract X" road or a 4-way intersection at 4th/Conklin. In light of the current concept contemplated for the South Valley Arterial, there appear to be two options to close the loop on these Conditions of Approval: a. Request a Change of Conditions, modifying Engineer's Condition #40 to allow an offset intersection at 4th/Conklin, or b. Request that the County's Arterial Road Plan be modified to indicate an at-grade intersection for the South Valley Arterial couplet concept at Conklin. F1750 - 5heliey Lake P.U.D. 4th AvelConklin Rd. Intersectivn August 16, 1996 Page 2 af 2 In arder fvr the plans to be approved, the current Canditions of Approval wi1Z etther have to he fulfilled vr modified. Since Engineer's Conditian #'s 17, 39 and 40 have such a significant impaGt fln the raad and drainge plans for this prvject, Lhe bpt10I] yOU ChC1O5e VL+III need tv be completed przvr tv the Cvunty's further review af these plans. If yau have any further questivns in this matter, ptease contact Ed Pacry vr Pat Harper at 456-3500. Thank yvu. Very truly yours, Wilriam A. Johns, P. E. Spvkane County Engineer Edward J. Parry, Tr., P. E. Plans ReView Engineer ec: praject file reviewer Sp4kane County Directar of Puhiic Wvrks: Dennis Seatt, P.E Spakane County Engineer's Dffice: Bi11 7ohns, P.E Pat Harper M"M INLAND PACIFIc ENGINEERlNG, INC. J'une 19, 1996 ~t3P''ff'7t' ~ PACff~'~:C ~iG~`JIlFMMG SpoKane Counfy Engineers 1026 West groadway Aven ue Spakane, Washingtvn 992E0-0170 ~ Attn: Edward J. Parry Jr., P.E Re; 5helley Lake PUD, IPE Froject N'o. 93143 Second Review Cvmcnents Sheet'11, Retaining Wall aear Ed: We are respondirag to yvur review cvmments on the prapased Keystane retaining walls at fhe abave refereraced project A sails repart was nvt deemed to be necessary to suppart design of a Keystone gravity retaining structuee on the subject site. A soils investigativn and report may have been . appropria#e if sail conditions on tne project site had been unknAwn, bu# #ypica'I properties of the GarrESOn gravels can he conservatiVely estimated by a local svils engineer wi#h experience dn these svils. A cohesian value +af zero pqunds per square faot, angfe flf internae firictiQn (phi) vf 32 degrees, and a mo'rst unit weight of 125 pounds per cubic fvvt were input intv the Keywal[ design program, and suitable factors vf safety against sliding, averturning and bearing capacity tailure were obtained. The geotechnical reviewr pravided with the March 21, 1995 letter was a review of the plan sheets perfaining tv retaining rn►alls, nrat an abbreuiated sails repvrt, Pertenent elements of that review have been added tv appropriate places vn the plans. The lack of a date an a professional stamp in no way invafidates any of the informatiora cantained . in a letter sigraed 6y a licensed prvfessional engineefr in govd standfng in the State of Washington, The Keystane byiine-infvrrnation is generic 9n nature, and dves not take precedence ❑ver a site specific evaluativn cvnducted under the supervisian of a lieensed professivnaf who is designing the wa[1, 707 West 7sh • Suite 20€1 2620 Lakewos>d Driwe • Swre 205 5palcane, WA 99204 Crseur d'.elerre, 96 83514 509-458-6840 • FAX 509-458-6844 208-765-7784 - FAx 208-769-7277 ~ r WB tfl1St that thB 't13fJr1`i'1ati{]Cl 5LIppaled hEreIfI 45 SUffiCIeCIt an5WeC ]IoLIG qlJeStfQCtS. If }IClU ShoLlld haYe any qUeStfC?f1S fegafdfng th15 Iett£:C ❑T ofhBC 3SpeCt5 of tlle pfOJBCt, . please dv not hesifate ta call. Sest Regards, . INLP4Na PACIFI E GINEERING,I6VC. ~ .JeraPeterson, F.E. JEP:ell enc. ' a 1931434arryfuS wpi .f' • AGF3A Earth & Environmental, Inc. 6-924-01336-01 inland Pacific Engineering - - 19 March 1996 Review af Retaining Wall D6awings - page 2 It has been aur pleasure ia pravide you wi#h this information. Psease dv nvt hesitate to call if you have any questions regarding this fetter or other aspects of the pToject. Respectfully submitted, ~ AGRA Earth & Env' anm , IBc PIP ~ °V- wAS41 p C~ Jerry.. Pet son, Peaj t En~ieer ~ " 4SOC1afe nrAt. ~ ExPrREs if 11271 ``T ~ . N. 5ar~derga rd, P,G., R.E.A Encfosures: Sheets 3, 9 and 11, Shelley Lake P.U.[7. OAGRA Earfh & Environmenrar August 20, 1996 8/16/96 3rd Spokane Countv Review Comments. SHELLEY LAKE PROJECT #93143 Sheet 11 (Now Sheet 14) 1.a. O Retaining Wall A copy of the signature page of the referenced "geotechnical review" letter, with the P.E. stamp appropriately dated and initialed, is enclosed with this"resubmittal. Our evaluation of soil conditions at the subject site indicates that the proposed retaining wall locations are likely underlain by Valley gravel (Garrison) soils. This conclusion has been supported by conditions observed in numerous utility excavations across the site. Possible deviations from those conditions might include an anomalous occurance of bedrock within a wall footprint, or a previously undisclosed deposit of uncontrolled fill, both of which are easily remedied with common construction practices. Neither occurance would result in significant change to the wall designs proposed. We will be monitoring construction of the subject walls and providing documentation of conformance of the construction with the approved design. 1.a.0 Computer printouts of the results generated by the Keywall design program for each of the wall sections shown on Sheet 14 are enclosed with this resubmittal, as is a page from Navfac Design Manual 7.2, "Typical Properties of Compacted Soils", and a material property data sheet for UX1500SB geogrid from Tensar, the manufacturer. Per the second paragraph of our response, we feel that test pits at the wall locations would not add significantly to the information that we currently possess, and would likely result in disturbance of otherwise firm subgrade soils. A 1937434eview3 wpf a ~ KEYSTONE RETAIN:CNG WAL.L DESIGN Based on Cou lvmb-fVCMA Methpdology KeYWall Versian 3.0, Ma►-Gh 1995 Inl.and Pacific Engineering Co Pra ject : 5he1 leY La ke P. U. Q. - Date: Rug~st 23, 1996 Pro,}. No. : 931 ey : m8Z Desigra Parameters SoiT Parameters Phi c cramma Reinforced Fi11: 34 0 125 Reta ined 5oi 1= 34 0 135 Faundatinn Soil: 34 a 135 Rein'farr.e Fxll 7'YPe: 2.5" mirius Cravel or Cruishad Storre Urrif. Fil1 ~ Crushed SC,vne, 1 a.nch miniis Factars of 5afetY Sliciing: 2.00 OUex'turrring: 2.00 ~earinG= 3.00 Pullaut: 2.00 Lincertainties: 1.50 CoF1T1eCtAQ1-t Pee9 k: 1.50 0.75 l ll . : N/A Re inforci. ng Parameters: Tensar Geaga- ids 7cr F'Sch FSbd FScd L1"D5 FSun 7d Ci Gds UX150456 2298 1.00 1.00 1.30 1769 I_ 50 1179 1.00 1.00 --_____-_--__-_-___-W -_-r-W-_ d--w_--______-__-v-__--_r-w__w-_ --w_ finaly5is: Retaa,ning wall. Section - C Uni.t 7ype : CDMPAC Wa11 Bat ter : 7.1 degrees Level ing Pad: Crushed StQne w~ll Ht: 5.0( ft 8mbedmt =1.0( ft ) 8aclcfi-11 GeDmetry: 30.0 degree slope 3.0(ft) hi9h Surchargs: 50.0 (psf ) uniform surcharge Results: 5liding Overturning Bearing Shear Bulqing Factor s of Saf etY = 2.12 7.26 21.26 3.92 1. 54 Calculated Bear ing Pressure : 779 (Pst] accentr icity at base : -o . 3, 2 (f t) Rea.nforci,ng= ft & lkas/ft Layex Ht. Length Reinfi ~ 7d Tensaan Tcoran FSpa 2 4.()0 6.00 UX1500SR : 628 61 628* F5? ltl 1 b' 2.67 b'. 00 lJX1SDOSB= 755 471 755* 4.67 Reznforca.ng Quantities ( na waste included): UX150q58 1.3-3 sY~ft IVOTE= TFiESE- CALCULATZQNS ARE FOR PRELIMIIdARY DESIGN ONLY AND SHOI,JL❑ NO7 8E GSE F(3R CC]NSl"RUCTIC1N- WITHdl3T REVIEW BY AQ1.1ALIF~~~ ENGINEER P . E KeYStone Retainirg Wal1 5ystems, Ir,c. 4444 West 78tha 5treet Mi nneaPol as, MN 55436 Xeyst4ne Re Eai n ir~g 14al I Sys ~~ms Date: ~ugust 23. 1996 Frajec t : She I I ey Lake P . U. D. A'rv,1~~ t No : 931 Gase: Retaining I4alT Sectiara - C Designer: h~~Z Wal1 Heitglht: 5.0 f^G. Embedment = 1.10 ft BaakfiYl: 30.0 deg 51ape 3.0 ft Surokiarye: 50,0 psf uniforre ~ j ....r.. , rr,..... . dC v p♦~.~.~.F d . a ti a e s x ~ s♦•fti c ~r`r fryr r e xsr r ..lrlr M1 • s~r~ryr : a: e+ ~ 1r !l a M1 y t J9r 1 v S• r i`• e d! f6f4s r'f~1 i fyf PSt +419- e'f J • 1 S t\~ lpti a~1 ti a f+ ^ / f• l r a f~l9~ a~fy• +'l114+ l'l 1+ 1'1 s +9f f 1` a♦ y l+. 1 t ♦ I t fyi + f'd ♦ ~ I4d.+.f1~,d1 f 1f 4 1 • •6Y'e ♦*f~ ltr r~fid'o+'f~r +'f f d JY+4f~+ sr. r a tiss . ! a+a s+.~.+. ~ 4r~r~r r~. . ~1y 4+F r .k.~. r4tr . T r ♦ M r~r, ♦ . ~ . `d'r'~`a`f`. r.r.• r+ 4 r r r a~r r~+ ~ r .h r ` y ` . s. ' r r. r r s i. • . r.. . s ea'~s+~lyi d f'r r ei? rSf.fSa •~Fir f'0 f r~fl♦ ~ ~.y..y+~fy.y•yr - • ♦ l l 5 ~ yr i• f I I f d f r t+ e4fS +l?`f !5lar +e! P f f f+ t v . - ♦ • ♦ r !M1 +yfSf~Pyf~f I / y • • 1 s - ♦~fa ♦~?'r r f y rf - . r rr1 r . .r..+... UXISOOSB. '~s~~' _ _ . 1tlt!• vd, •t ti a. y. .r.+• .Pir. r. arti •fxf.F. a` ~'J 1 ydarz 1r• . s e . . •f~ .kri a lr~r • . . ..................•,UXI5OO38 ,1r1 2.67 6 . 00'r'•- r. . c , . s . . . , . r • y v• ti ~r r t~• ~ s f f f i f f f • ♦ r ~ r d . . . rs.4.`.%s • a r +1+, r ♦r re artir•ra Aaf.+a+a+.fvra .fs .rsr•r r.r .~e r,r. •r. , f, ~r . . ♦4r f*d ♦6f at♦ s4t l~fS16e~.sf - S P' 'f 4fS r 1 f ° . r % . r f . 1 r.: ~ :::.I r r r , r . r { r f • • r1f4e rqf~lYr~t~e ~Pyr r ~r r 1r4 • r,. ♦ 9 1 `ayr r ~ i r r~r r~r .trir i 1 t~• ' S rS rS rw s r r s s•I r 1•f~1yf I'f•y,v'f. +.t.15 a 1m1• r F P f l f r / Yd4 •yfryf r`Yyt ♦~f'rs{'r 1I1r ~ ~ ~ + lf 1,i ♦ tif s ♦ l y I f•r d d• i! i • . • ' r ~l~ + t• J \+4+A+ ♦ 1 L 4 l la ♦ sla ♦ v i 1 s ~ n1r~ , r a.. ~ ~r r r. r r r~ . ..j.i . e . w>> s. e.r. ~ry• ~ r s r r ~~f`l~Sr r~ r~t - S4EYSTDNE RETF1Ib+fTltilG WALL C]ESTfaN Based on Coulamb-NCMA MethodologY KeyWa11 Version 3.0, March 1995 Inland Pacific Engineeri,ng Co Project: Shelley Lake P.U.D. Date: August 23, 1996 Pro j. IVo.: 931 By. : MBz De5i9n Parameters Soi i Paratneters Phi c gamma Rsinforced Fi.lI= 34 0 125 Retai ned 5a il= 34 0 135 Foundation Soil= 34 b 135 Reirrforce Fi11 TYpe= 2.5" minus Gravel or Crushed Stane Unit Fi 11 Criashed Stone.] i nch mi nlIs Factors af Safety S 1 idi ng: 2.00 Over tur n.s ncs ! 2.00 Bear ing : 3.00 Pullout= 2.04 UncertaintYes'• 1.50 Connectzan Peak: 1.50 4.75 in.= NJA Reinforcina Parametcrs= i'ensar Gscprxds `fcr FSch FShd FScd LTDS FSun 7d Ci Cds UXi50d5e 2298 1.00 1.00 1.30 1769 1. 5O 1179 1. UO 1.00 Analysis. Retaining Wa1.1 5ection - D Uni t TYPe: CQMPAC Wal1 Satter : 7.1 degrees Leve li ng Fad: Crus hed Sr ane Wa11 Ht: 5.7( fit ) , embedmt =1.0( # t ) Backf ill Geometry : 30.0 degree s1opp- 3,0( ft ) high Surcharae: 50 _0 (Pst ) un.itorm :~-urrharqa Resu1ts: Sl,idrri~ Overturnina Beai-ing ~hear Bul-qing Factors ofi 5afetY : 2.09 7 . 35 c0 . 01 3.29 I .57 4 Calculated 6saring PressLiti-e: 861 iRsfJ accentr ici tY at base: -fl .15 ( fi r) Reinforcins= ft & 1bs/ft L.ayer Ht. Lenath Rei nt' : Td Tensir'n TConrs FSp❑ 2 4.67 6.50 UXkSOQSB : 627 88 627ak F5 310 I b 2.67 6.50 1.17{1 bOQSB: 818 58a 818* 5_ 13 Reinforcin9 Quant.ities (no waste inciuded L1X1500ae 1.44 sYr'ft N4TE: THESE CAL.CUL-ATT OIVS ARE FOR PRELLMZNARY [7ES I GN (]iVL Y ANCJ SHC]ULD NC]T BE USE FDR C0N5TRUC°fION WITHQUT REVIEW BY p QUALIFIED ENGINEER K~Ystane Re~~~nins Wal1 SYSte~~, Inc. MAnneapol15, MN 55435 4444 We5t 75th s$re$t Keystane Retainang WaIT Systems Date; Actgttst 23, 1996 Praject: 5he11em Lake P.H.D. Prnject Mo: 931 GaLse : Retainzng 14aI'A Sectxon - D Designer: ~~Z 14alI lieight: 5.7 ft, Embedment = 1.0 ft BackfilI: 30.9 deg slope 3.0 ft Surcharge: 50.0 ps£ unifarm r`.". , r . , . , r .°r`P`s` v ♦ fkl' VFf 4~ • f~lJ f fwf41`s~~e- ~yl' rf i ld~d r r e r+. aflra { T 5! r r • r r f,r r ~ ' , f rif. s,?-r yfRdt. eLf,r lA v~4{1, 4 a - l - 1 ti.tilSr y+~+ +.f a,1 sr5r a 1 r'fti ♦ f' f♦ + y / f`!,f r, 9 f 0. P ♦ ♦~f4 f ' / f ~l1 A 1`YLt4Y1~1fy♦ ~yFy r41.r. l 41`4 M1 r,ln+ e z • r a r r r. 4 c.. I4 • P.ee. .I .I f s y ~ . r . r r~. r~ r. r r~rir s n.+ +yr4+ + r r + r . e . v . r r • s . ♦ ti . . . . c ti • vA~ ti . ~ .~irr r4rs~1r r r ~ r ~ • .~.rs~r~.t~1f . r~r l r yr r r r rvi . r r S. ~ 3 s , '.~Q ` ` 4 F.rs e+v .f, .'.r.r +cr.+. .fa+. . . f.' .......~.r~ r • • U1L15GlC1SB`f •'•SIm r4.67r+f `rl•- ~ . ~T.~,~'.`•~i .~''~ra~.~.~'+•'°`•~'`+`ti`.``r . .r„ .f. ' ' • r I + ~irrf - .r • •.t~ r r rr rt•lr ~ - - ~ry e+. 4 .+a •Yi .~sr.lM1 .r• . :4 J`rM1e f~e f2 r!r .f. .f . . S f\ lf • z r4Ja 1♦ vy• 1r4 I 1I• ' •fa+~ r • f . . " , . . " ~ r-~'r~~ ~~~~~9J~~' y~~ ~ ~ 4dl~r W ~ r ♦ •~elF 6 l 1 \ i} \ y f11~J5f4f f,• f4r~P ♦yf sLr r fl 1+~j1 r/• ♦ftilv+vr♦ ♦AarsttlaP.r ~.+c afa{.rara •+s!• '1 6v ! ~.1 T . !1s +`e+♦ e aM1ISI f t♦ r 1l1JyJ J,r Y J 1f f l`f4W 3y 1+Y vf~+~L+i 6r• ♦+i yaa ` r tAi. •+k . •3l~~re.• ~r. ♦{+re % r` e ~f r . . . •r• .~t~. aIyIi +~t~• •~r r e r. r a~r r r.. s~rs+ . r s rir..sr r.+ •`\r.ri i • y y 4 a a ~ f! I f I't~f~! a!+ f f•r • f r aFf~ +`34 1 ♦ ♦ . ♦ ~ ti . r a ♦ f ♦ f . lr~~4~~rtMtF~• ~ • I' f ~ r/ f e! r r fYfjl1fyl4l4J`~ 6` ` . , v l ~f 1 S+s KEYSTONE RETAINTNG WALL DESICN Based Dn Coulomb-NGMA Methodolagy KeyWalk Version 3.0, March 1995 Inland Pacific Engineering Co Praject: She11eY Laka P.U.D. Date- August 23, 1996 Proj. No.: 931 By, m6z Design Parameters 5ail Parameters Phi c gamma Reknforced Fill: 34 0 125 Retained Soil= 34 0 135 Faundatian 5oi1: 34 0 135 Reinforce Fill Type= 2.5" manus GraVe.l or Crushed Stane Unzt Fill Crushed Stone, 1inch minus , Factors c,f Safet.y Sliding= 2.00 OvPrturning= 2.00 k3earYng: 3.00 Pullaut: 2.00 Uncertainkies= I.50 Connection Peak: 1.54 0.75 i n.: N/A Reinforcirig Param$ters: Tsnsar Geagrids Tcr FSch FSbd FScd LTDS FSun Td Ci Cds 1.1XI5DC}SB 2298 1.00 1.00 1.30 1769 1.50 1179 1.00 1. Oa AnalYsis= Retaining Wai,l Sectfor+ - E Un a. t 1'ype : COMPFaC Wa!. l Batt er : 7.1 degrees Leve1ina Paci: Crushed 5tarie Wa l1 Ht. : b. 3(ft), embedmt =1 _ 0C t t l Bacftfili Geometr-Y; 3[].0 dearee siope 3.0( t=t) ~iqt+= Surchar9e: 50.0 (Psf ) unitnrm surcharce ` Results- Slidirtg Overt+urning Bearina 5hear 8ulging FaCtor s af Saf etY : 2.13 7.65 19. 04 2.97 1.60{ Ca lcu 1 ated Bear i rsg Pr~~sur e: 983 (Psf) eccentricitY at base= -0.20 (ft) Reinfvrcing: ft & lbSlft Layer Ht. Length Rei nf =Td Tensi an Tconn FSpo 2 4.67 7.00 1JX1500a8 : fa91 157 691* FS) 10 - 1 b 2.67 7.00 4JX15Ot7SB : 882 682 882* 6.30 Reinforcing Quantities (rsa waste inclt~d'e'l): ux15005B 1.56 sxrft - - - NoTE: rHEsE cALCuLAr r ONs aRE FaR PRELIMIr~~RY DESIGN ONLY AND SwOuLD N07 BE U5E FOR CC3NsTRUCT I4N W I 7HQUT REV IEW B'f A Ul.lALIFTi EU ENC INEER Keystane Retaining Wa11 Svstems. Inc. 4444 West 78th 5treet Minneapolis, MN 55435 Kegstone Retaining Wall Systems Da*e: RuSUSt 23, 1996 Praject: SMelley Lake P.U.D. Project No: 931 Case: Aetaining Nall Section - E Designer: MBZ ' Wal l Neight: 6.3 ft, Embedeeent = 1.0 f Y Backfill: 30.10 deg slope 3.0 £t Surcharye: 50.0 ps£ uniforM f~ . . . , . . . . . . , r . . . . , t ♦t !L: • ,a I, {'~'\r~' 1 1 ! / ! ,I` vI ,l !~`ti`\/1j♦ 1'♦ ♦ \ ♦ ♦ a ,t` ~'t t f I ! ! : l ti f • 1 ♦ J \ , 1`\ \ \ tr 't, !1! ! I,f,f `!S♦ I+I /L,L . . ,1, % s ! I I, I f` IL! ♦/`l,! ! f, ~ , r `i • itrtr+.: % ♦ ~i~6` r ~ i • i i,r . • • i ~ ♦ • i ~ ~~~~i . % ~ r% % %i~~~i % \ 1 ,i. i r ♦ \ ♦ ' . r L % ~ f~! I /`I,/`I+ ` .J♦ i l,♦ 1',\`♦ . , Ll~,. .~`~'~IL,~`~t~,~,~ ,\f`I `I,I•~ ! • ~Ilf`!` % f \ ♦ ♦ 1 I`I I,I I 1 , 1 ta ♦ L , \ , , `f,! i f ! I ! ♦LI` ! I t / `J /,Iyt`I, I I / ♦ t • 1' l 1\♦ I I f`I !`J f I I I/`IfY / I Ia a,t ♦a J! 'ltl4 5,5f♦ f, 1 4 ~ • ♦ ♦ ♦ ♦ 4 x ' . tI / I/♦`/,I ! I`f J'!`! f ! I,I`I•~,! , I l,J,/t! t t l ! L!' I`~,J`~ i~! • I ~JLI1J~♦ `J I / ♦ ♦ \ • • `1 ♦ \ ♦ ♦ \'l ♦ l _l . ♦ t,~` ,\,\I• •.IIJa 1 ` , ` :'::.:'i:..~.•.•::.:.:•:.~ r .J . I I ! ! ! • _ .•.s~ ~.i~ i~ ~ f ~ . . . . % , ! . ~ I . a . I ` • a % j i i rr : ri I rI ii % , , % . '..r.':..'...'.'.".'..'.'.'.~~ % . , % % % % % % % % % I % % % . , i I I I i. . r i`i r`r . i i i eI i r.• I , , ' i . a`..~~. ~f. ~~1~la,.`ti .`~`ti`.j.,.+c . ,.`a ti`+. . • . % ti . . . ~ % % ~ ~ ~ l ♦ • I • I ~ r r + + ` I ` r I i . • . . i i 1 r . . . I ~ i i ~ r i i • I ~ . . , . Uxi5Or15B', 4 . b?. %'.1= 7 . ~10, `ti. ' . r,,.. . , % s+''+F: I I I I I I I I I , r , r i,: ♦,•`ryr i i i,i r i i . •fa •,a .r % % % •I r , f ' f ` ~ v i ` . . i I r 1 I ' ' , , • I I •,I % a • • , a - •~V.'.' ~ . , , :i , i i , r ,r t r ~ i i I i i r , i r i: i ie I ~ , , ,a • 1 ,l'% ♦ fI 'ti,~`L,ti,♦ t ` ♦ i I i ` ` , . , , ` % % . . uxiseesB .:H= ~z . ~7 • ~ 1 _ ~ 7 : e~.~,~ . . . . % . ~ . z .,.,.r. . .r. . . . . ~:t, ~ . . : . . . . . , . , . . . , . , . . . ` , ` % . . % % . ` , % - - - . . ! % . . ~ % . ..~.t.~. .f . . . % .r. _ : I, t. ,r .t. , . .L. . . , . : . . . ~.r•. .I,I.I.~,~,~, t~.r.~. . . ~.::;t:• . . . ,r. , , , . . . I ' ~:f•:'~ . . % , , ~ ~ : : : : ~ : : : : : • • ~ . . . , , , ~ , , . , I r I , I I . I I I I I I r . r , . r . . , , . . I I . . . r1i% %r1~% . , , . % i ~ ~i,~~ ,i,i ~r r • ~ ~ .r.r.'.I1`. . , ~ e 't . . . . . . . . . . . . . . . . ~%.L. % 1... . . . . . - . ~ . - . . . _ ' ' ~ . . . . _ . r ' ' ' ' ' . • . . . . . % . _ i KEYSTONE RETAINING WALL DESIGN Based on Coulomb-NCMA Me*_hodology KeyWall Version 3.0, March 1':a95 - Inland Pacific Engineerin4 Ca Project: Shelley Lake P.U.D. Oate: Auaust 23, 1996 Pro j. No.= 931 BY : MBZ Design Parameters Soil Parameters Phi c vamma Reinforced Fill: 34 O 125 Retained Soil: 34 0 135 Foundation Soil: 34 0 135 Reinforce Fill Tvpa: 2.5" minLts Gravel or Crushed Stone Unit Fill , Crushed Stone. 1 inch minus Factors of Safety Sliding: 2.00 Overturning: 2.00 Bearing= 3.00 Pullout: 2.00 Unrertainties: 1.50 Connection Peak: 1.50 0.75 in.; N/R Reinforcing Parameters. Ten~ar Geoarir.ls Tcr FSch FSb~ FScd 7DS FSu n Td C i Cds UX150056 2298 1.00 1.00 1.30 1769 1.50 1179 1.00 1.00 Analysis: Retaining Wall Section - F Unit Typa: COMPAC Wall E3atter: 7.1 degrees Leveling Pad. Crushed Stone Wa 11 Ht : 7.0( f t), embedmt =1 . O( f t) Backf=i 11 Geometry: 30.0 degree slope 3_0( ft ) high Surcharge: 50.0 (Psf ) uniform surcharge Results: Sliding Overturning 8earing Shear Bulging Factors of Safety; 2.05 6.83 17.50 2.59 1.52<-- Calculated 8earing Pressure: 1068 (Psf) eccentricity at base: -0.15 ( ft ) Reinforcing: ft & lbs/ft Layer Ht. Length Reinf ~ Td T2t1Siol7 Tconn FSpa 2 5.33 7-.40 UX150058: 691 198 641* FS>10 1 b• 2.67 7.00 UXI5QOS6 : 945 8 1~ <;45* 5.21 Reinforcing 9uantities ( no waste includrd UX1600SB 1.56 sy/ft NOTE. THESE CAI.CULATIONS ARE FOR PRFLIMINARY C)E.STGN ONLY ANp SHOULD NOT BE USE FOR CONSTRUCTION WITHOUT RrVItW EY A QI.IALIFIED ENGINEER KeYstone Retaining Wall SYstems. Inc. 4444 West 78th 5t4 eet Min neapo1is, MN 554 15,5 Eegstane Retasning Wall Systems Datea A"gust 23. 1996 Project: 5helley Lake P.U.D. Pro;ect No: 931 Case: Retaini~g 14aIY Sectzon - F Designer: MBZ Hali Height: 7.0 ft, ~~~~diient ~ 1.10 tt Backf'% I I : 32.0 aeg slope 3.6 f~ SUPO]aal~ge: 50.0 ~St ~ni#`OrIM ~t .s. . . . ,.`r : , . { +~ftiFtiy a••' e °lv e~llf . •1f+S y~er f ~ 1 I •♦1♦ • P ' r r~r~rto~r a4.~r1r4+ ~~~y ♦ c . , . ♦ a a • ~ . . . . r .1r r'r~r*r . ~ ' +~.f. .f y ~ ' . r ~e~. ♦ ~ • ~r~ 15 r .~r r~r~ - - r ~ s a ti t~ ti i ti f P f f ffffS ' %j% ~ j .d. ~t~s . ifv af - lrv _ t' l+lla . ! e s f 1 e a S+l ti~a afw M1r .s ;f Fz ~\r r• S 4 f ld i • ~ . ~ . .,rS~ ' r1r . ~ . ~ f f r + r . 1t , . - - . . v..... ux isao3~~~~t~l= ~rr` f .+~~.'4 ,~M1 ~s~,' . _ 3~•r. f, - s+.r♦ ers As+ > r r 4 y .f. :r. M1f+ +rlr+rsr . . ' - - tir.t.raf. . ~tirs .rry+•+sri+x .I~~.'. l '~tir r +r+ • • y , , f s r r+++ 5e s r f • + r I` f J " '~f',. . z r. c . t _ _ rt~t er~ •P f1f9r• v v • t' ~ ~ _ ° _ _ 'rL++ ' ' . . 'Sr !v 'I±d"Sd'4y ++l `~'9.°r 4^`.a e`s ♦,f c s a'! . . . . 'z ~ .-r_• . . . . ~t ~~i~3~lrR • ~ = r ~ y s - - , " • rs' . . .f.f. .f. - . . . , _ , . . . . . _ . • ` • . l5 . . . r P,J,• % 4f1 titi 9~' ' ' . • • • ~ 'y!M1 ' . liFM1r !f +1 ° ~ ~f : '~jy-:: _ _ _ T f ` • ! ! arw • r l+ \ , ~ - f 111f •L~a ti . +1r s 1 v} • / + ! + . dFr ~1flryf.fYfy \ x l` ♦s r~1` r~F r `ltff?Sr rS{'~ r • s •'L s ♦dlrtr5` }r\rs ♦•1r♦ a •rl 6 `f1!`Pyr f ' [ ! / + + d1+5f~r~f ~ . ' r9fl. 4f4rSF9r % ti ♦ \ l 11 • ~ Sf - % f r r r r r r r~ r w r~ r~ r r~ r....~ t>>• i.>>~ r.- r r•.., a.. r i., t r- r r r i p. , , , r.. r r r i f KEYSTONE RETAINTNG WALL QESIGN Based on Caulomb-NCMA Methadolagy KeyWall Version ?.Q. March 1.995 xnland Pacific Engineerxng Co ProjeCt: ShBYleY Lake P.U.D. Date= RuguSt 23, 1996 Prvj. NQ.: 93143 By: MBZ Design Parameters 5via Qarameters Ph,i c 9amma Reinforced Fill: 34 D 125 Retaaned Soil: 34 0 135 Foundatian Soi1= 34 0 13", Rei rrforce Fi 11 Type: 2. 5„ ma nus G,,- =ivel or CrusI1ed Stane Unit Fi 11 CrsAs~ed ~torse.'s. r rr_h rn; n;as Factvrs of 5at`ety Sliding: 2.00 Overturn;.na: 2,00 Bearing: 3.{)0 Pu11out: 2.00 Urirsrtairr3es: 1.50 Cannect ian Pea k, ? _ SO 0.75 a n. ~ IVIA Reznfvrcing parameters: Tensar Geaprids 7cr F'Sch F54ad FScd LTDS Faun Td Ca Cde UX1500SB 2298 1.00 1.00 1.30 1759 1.50 1179 1.00 1.00 AnaJ.Ysis: Retakning Wall sectiQn G Unit 7ypa: COMPAC Wa11 Bafi ter:7, 1 degrees LeWe li ng Pad: Crushsd Stone Wa l1 Ht: 7. 7( ft), errtbeclmt = 1. 0( f t) 8ackfi 11 Geor~etrY ; 30_0 degree s1ope : .0~ ft3 hl-qh Surcharge: 50.0 LPs'F l unifvrm sLirchkarae, Results: Slidinq L7verturning Scarinq 5hear Bai~gl ng F'actor s of 5af ety : 2_76 6. 15 16.24 2.86 1.57 C-- Ca lculated E3ear i vrg Pressure: 115L ( Pst ] eccentricity at base: _-0.10 ( ft ) Reinforcin~: ft & 1.bs/ft LaYey, Ht. Length Re°i nt' ~ Td Tansion Tconn F5pn 3 6.67 7.00 UX154OSES: 627 as 627* FS) 1D 2 b 4,67 7.00 UX1500SB; 818 319 818* F5)10 1 ~ 2.00 7,00 UX1500SB: 1br2 801 1072* 5.34 Re i nforcing Qua nti ti es (no waste, a ncl uc1ed): !JX 150d]SB 2, 33 sy/f t NQTE : THESE CALClJLR7 T 0NS ARc FOR PRr L IMX N4R" DESIGN QNL Y ANQ ShSaULE7 NO`f' BE USE FC1R GQNSTRUCTiON WITHOIi7' REVIEW BY A QlJFti_IFiED FNGTNEER Kevstone Reta i ni ng wa11 Svlstems , rnc. 4444 WeCt 78th St! eF?t M? nnF.:aoo1 7 7 . MFY 6.r1"435 Keystane Refaining Wa1l Smstems Date: Aucdust 23, 199E Project: Shelley Lake P.LJ.D. - Yra.jecT tdo: 93143 Case : Retaininy Ha11 SE.'G alori i: Designer: MBZ Wall HeigMt: 7.7 ft, Etabedment = 1.0 ft Backf i I I: 39.0 deg slope 3.9 i i: Sur-cklarge :50. 0 psi uni i orm F~: . , . . . . • , : . . : , . . . • % IS 4,♦ tf~ v t' • ♦ ♦ •`1 ft`\ 5 1` l • • ~.j ♦ C t ~ •,r : r,r : < < i ~ `r i • r i ~'r a ~ i ~ i rt`a~ti~.,• •fa ~ .r~`~ .~.f r ~ ♦ .lv~.r~`. ~f~ a+. ~f, ~~~r♦ ♦ ♦ .r. . r. . . L'l'l,~' ,~I1' . l l ` . , I I ` ! l • f,' , I l I!/,/ I` I I~,:,• a,ti'~,l 1tcf~` ♦I` f,I / ♦ ♦ l`. ♦ % 1 ♦ ♦ ♦ ♦ a . . • ~,l`♦ ♦ ♦r\,%f♦ L,♦ . I`,,I I`I I`! It! I,! % ~J / I,/,/ J J I!!1♦ Il t\,1,1`•. •f• , / / / / I I ! / ♦ I • / ! ! l l l ♦ f ! / ♦ ! / / f ! O I ! I I I / f / l ! / / ♦ / ! ! / / 1 • \ \ ♦ \ ♦ 1 t % ♦ 1 \ ' ♦ ♦ ` , • ♦I i/ / • f •`1 vf~, t,♦ ♦ ♦ \I+I,I,! I`I 'ti,• l`• ♦`\`1 1 11 L, \ I,: f r / I , I % a,a l\'l t ,1j• . . . f . . I M1. , % tIt % ` % l`1 l`♦ ♦IL \ • 1 1 • ♦ '1, 4 \ \ ♦ ♦ \ 1 ♦ ♦ v ~ ~ • . \ % • . / J • . UXiSflOSB%` .h= G .G7.-.' I= 7.~~,G-"*, . . , . , ~ a!~ i ti I ~J r i♦♦ . ~ i ~ r, ♦ • r% ♦ ♦♦tiI. % _ a `a ~r r • ~i ~i ~i~i t. % ti+~ :~:.L t, ' • I,f ♦1I ~C~ ,:f♦ = 1 , • - ~ . .~f.".' : / / •~14 i . !`J` ! t . . r ! . I . . t . . I~l~ : ~ [1A1506 ~ . S ~ ~ tt ~ a ~ % 1 ~ li^ \ , , . . . t ! t . ! ! • : • .......'.',f2- .b( .~•.~,L . . ~ . . . . . . . , . . ` 'i~;..~. . . . . : , , . % _ . , . . . I . . '.r'.`.''`. r:~Uk15O0vB`,%h= 2 q0'"'.a 7 ~i0 . . . . , ,`,L•• % ,1, % f f t / I / !l I I ! / / ! f. I , ♦\t\ ` ~',i r i♦• ♦ ♦ % , • % % % % % % % % ♦ ♦ % % a`% % % % % % % % % % % % % . , i~• ` ' , , ` , % , i,r i. ~ ♦ % % ` sf~`% , , ♦ / ♦ I ,~I . . . % . ♦ , '%ti,% % ♦ % ar. ,L,'• % '1 % v'. ~+y •j• t`y I'! !L t. . . ,l .`i i ♦ },I ~`f~t . w i > > • ~ i i ~ ~ a > > r i w ♦ . . . . . i i . . t i {~L~l'♦ )4/~~f,♦ • _ a _ i i . . . ♦ • . _ 1 1L( l t KEYST{)NE RETAINIIVC L.1AL_L DESIGN Based on Cvu lomb-NCMA riethadol ogy KeyWall Versivn 3,0. March 1995 Inland Pacifi,c Enginearirrg Co Pr o,iect: She 11 eY La ke P. U, D. Da te: Rugust 23,1995 Pro j. h1o.: 93143 8y: M8z Desigr, Parameters 5oi l Parameters Ph~ c gamma Re i nforced F i 11 = 34 C~ 125 ~etai ned Soi : ~ i ZI. 5 . Fok,ndation Soi ] = --44 0 1-35 Reinforce FYll 7vDe: y' F," mjnuy [;R--aVF1 ,r rrushed Stnne Unit Fill C'rusher_i Strane. 1 a.~;t:h minies Factar s of SafetY 5lida,ng: 2.00 Orrert.urninq: -2.00 B?arano: 3.00 Pullout: 2.00 Uncer'kazrat3es= 1.50 Cc.nneutaon Peak: 1.50 0.75 i n . • h!/A Rei.nf6rcing Parameters: Tensar faeagi-ids TC i FScf7 FSbd F'SCd L..l"i:1S FSs.1 rl TG' Gi Cd.~~' UX1500S8 2298 1.00 1.00 1.34 1769 1.50 1179 1.00 1.00 AnalYsis: Retaining Wa1l Section - H Urri-t Tvpe : CQhiPAC Wa1. !Ga* ter; 7.1 cieqrees L.eWelinq Pad: Grk.ashed Storie Wa1l Ht : 8 . 3( f t ) , embacimt M 7. t?[ f 3y. ~ @ac kf a. 11 Geomet rv: 30.0 tSPai•ep siope i-~ ~oh Su'a ,_-harge= 50.0 (Psf } uniform surchar-ir ReSlllrS: 5}ldl►lp C34rs?i"t"J,°i'tipa F:3eariI`l~j ;,~heM7r 8u141nq F"actors of 5c3 f etY : 2.59 5.57 15. 13 2,71 1 , 6d { Ca,lcular_ed 8ear i riq F'ressLire: t235 [ Psi= ,a accerstr icitY at base: -0.45 t. ft1 Reinforcinq= tt & Lbs/ft Layer Ht _ Lenqth Rei nf ~-TC TanS ron Tronn FSpo 3 6.67 7_ b0 UX k 5005s= h;o t'•~7 6`4 1* $.94 _ 2 b 4_67 7.00 U3C15005B= 862 361 E~82* 8.99 _ 1 ~ 2.00 7.00 UiClSf)b5£3:11'5 +w?-S 1 13-5.x 4.82 Rei.nforcing Quaptities ( nc+ waste incljic~ed): _ UX150058 2.33 sYlft ItilDT~ : THESE CAI..GUL..AI"]CONS ARe F=❑R PRFL.'TMINAR'~ DES7GN ONl_Y AN{] SH[7ULif] NOT BE USE FOR CQNSTRUCTTC36V WITHOl1T RF'J7F:W 8'( A C~IJAL_IFTED EIVGCNEEfi Kevstone Retaznzng Wa11 Svstems. Inc. 4444 West 78fih 5treet Minneapoi;s, MN 55435 Keystone R~taining Wal l 5gstei*s Daf--; AscawFt 23, 1996 Praject: Sheiieg Lake P.U.D. Projec# Mv: 93143 Case: Retaining WaII Section - N I3es i grrer■: NBZ WaI I Heigbt: 8.3 f t, EsebedmQttt = 1.0 i't Backfi I I ; 30.0 deg sIope 3.0 f~ sulvclkaa=qe: 52. ~a ~sf uniiForeo F.• r ti { 1!1 ,1!` . rSf•f•J Ja+l .trvpi l ri t s yA. fv~l.~~ . s t..s . yti • s M1f~:rt .d~~ti a , 1~r s e s~• r tt . r , rLZ~r~ , r rtr1r~r~.'r~A f r •1as♦ ~ .~y'. a 1♦ a♦ t f♦~d~a~a~fyf `!`f4A r 3 . i f e ' e r r.l4• J`ffi+ f J f l ! ! ! f I J!! l,4'~! J F• r f 1~ {y'i 1l,r • +s1y h~4 yly+%PS vd;l rt~l` rs~M1r,11f:14~1~ ~61` rsfy• rvl4♦ a / ~9 ~!~f ' • 4lr`r` . . ~P~F4♦ ♦~f~r .rar ...~F t . 1 ~ A - - . r - .r•yf sry . . . . . . : . . . . . ~ ~ - • • t ~~r y , . ' - Ilr - - 4 ~ _ _ _ '~'.'`♦.'ll• ss ax ~ • •}v . • ,f~f ' - ° Fvf- 'y~;'M1Jaf n ' ' , 1.r~ r : aSq.S r4~4a r4 r ~r.r _ e r~ ~~rsry+M1~s - ~ri,+~-+~lvft+a+s • i v i ♦ ♦,S+ " 'A. . . ....'~r. - - j~.1i~317'~~~b_' C~.~S' '3= i .iC.f~.'.','~ . - f, • - _ - - ',r - - , . • - • _ , f - ~l1 F. ~ • • - . •r . , r ,..f. . fti ,r,f~. . fY ti+,r,+, - - . . :.ti UX~.5 ~ii~$• ,•`1= 4.6~~ ~r.iw r .64' tr • ~r . . ~~f . . ` .rs . - ~r 111_ .tr r +9 P ie .s• + e a . ..t...~+vfsrv .vfv • Lrt ~rt r1 e ayf . . . •'1 '.Rr`r1r ♦4rys ayr ~1a r •j . • ° f• . . : •,."~•••~--.•-•~r' ti r . . . ' ~f~ ~A~ - • 4Is f ~ ~ : ' : : : . , . • ~ . . . . y. - . - - _ . sr ' - - , ' .I I I I . I I I . . . 1 r , , ' • r • - r ~ . `:9 .,r,= + '.~,.....~s~..,s.~.... , , Z KEYSTONE RETAININC WALL DFSIGN 8ased on Coulomb-NCMA Mathodologv KeyWal_1 Version R.O. riarch 1995 Inlanci P_acitir Enni.nePrin4 Co P•roject: Shelley Lake P.U.Q. Date: A«gust 23, 1996 Pro j. No.: 93143 3v = MRZ Design Paramet.ers Soil Paramaters Phi c• gamma Reinforced Fill : 34 O 125 Retained Soi1= 34 O 135 Foundation Soil: 34 0 135 Reinforce Fill Tvpe: 2.5" min"^ Gravel or C:ru•yhad Stone Unit Fi 11 Crushed Stone. 1 i nch mi nus7 Factors of Safety Sliding; 2.00 Overturning: 2.00 Bearing= 0.40 Pullout= 2.00 Uncertalnties: 1.50 Connection Feak: 1_50 0.75 ln.: N/A Reinforcing Parameters: Tensat Geoaricis Tcr FSch FSbd F::cd F4un Td Cy Cds UX 150058 2298 1.00 1.00 1.30 ] 769 1.50 1179 1.00 1.00 Analysis: Retaining Wall Sectivn - T Unit 7ype: COMPAC Wa1! E;atter: 7_1 ue•areeG Leveling Pad. Crushed Stone Wal l Ht : 9. O( f t), embedmt, =1 . 0(t± ) BacS:fill Geometrv: 30.0 dearae SIOne -S.O( fit 1hiah Surcharoe: 50.0 ( Psi- ) unlform surcharae Results. SlidinaOvet'`ornin4 c3ear ing Shear Bulqiny Factors ofi Safety: 2.43 5.06 14.10 2.60 1.52<-- Calculated Searinq Pressure: 1322 (?sfi ) eccentricity at base : 0.01 ( ft. ) Reinforcing: ft & lbs/ft Layer Ht. Lenath Rei nf :'i"d Tension Tconn t Spo 3 7.34 7.00 UX 150058 :611 198 691 * 5.61 2 b 4.67 7.00 UX15005R: y45 486 945* 1.00 . 1 * 2.00 7.00 UX l, SpOSB : 1.t 79 948 1199 4.39 - Reinforcing Quantities (no waste includEd), UX15005E3 2.33'sy/ft NOTE : THESE CALCULATIONS ARE FUR PRE! IMINAFY DEO?GN ONI.Y AND SHGULa NOT BE USE FOR CONSTkUC T7nN WI7'HOUT Re.'v' :f_W BY A QUAi Ir IEO ENGiNEER Keystone Retaining Wall 7VSt.ems. Inc. 4444 West 78th Street MYnneaoolis. MN 55435 l{egs4one Retaining 4lall Syctems Dafe: pkiattst ?3, 1.946 Project: Slhelley Lake P.U.D. Yro.iect Nu: 93143 Case: Retaining WaIl SEa4ion - i Designer: MBZ WaI I Height: 9.0 f t, Embedment = 1.0 i T Backf i 1 I: 30.10 deg slope 3.10 f t• SutGha-r-yC:50. 0 ps€ uniform r•i : , : . . . . . . . , . . . . . . . . . . . . .'t'. . . . , f .'~`•'L't ~ . . . . . . . . . . `j~ t'•~, .;.41. •r. ~ ♦ • • } . . . . i . . . . . ,`L' f ' f J,'t~ `r,,' ~ ~ ~ ♦ 1, \ I ! I / ! f . . . • . • . ! .I•,` lJ!`!` ~ 1-11 •r A ~+4 i!+ ' ' • `r~ t,. x~ l. ♦,i ~ ~ , . . . . . . . ~ t,. : . i : •`i •~r ~r~ ' • ' . •r, . . ~'~,~.~r, /•.r~`~`~ ~,•I. .i~ r • r ..r.'.\~ ~ . ra . . . . . . , . . . . . 4 - • ~ ~ ~ ~ ti % . ~ . . . ~ i i ~ i r ~.f..~:.1 t' _ . . r.~~ ••t`\ 1 l• ♦ ♦,a, . ` . . . 1 . f J t I J,I•' . 1 : ! ♦ I ~ ,,,.,.,<<,,.r. .r., . . % : , . % , r,~. . . . . ~ , . , ~i;~ . :i~~ i - 7, ~i;: . . . . % ~ . . . . . . . , ~ . . . . . . , , ;r. . % , . : . • . . . . . . . : : . . . , . . . • , ~ . • . % . , , % • I, • r % . • : % I • : . r.~ . : : , . , . ~ . % ,,.,.:I. : . . % % . % % % ~f)- . . • . . . . . . . -.e ~ ~ . e.I ~ . . . ~ I . . % . % . . r'L~ •'~fl.~, ~ : , r~ . LX.~,~~~`}t= I ~ i . . . . , ~ . . . M1.' % ` ~ • ` ' , % . . :::::~i.:•::.:.:;•:: ` . . . . . . . . .~.1..~::.~.~..~•~ :~.~.~...~~:~..~.I,ItI ly' J,.' . . ♦ tI I'I ~y( : ' `L` y . . . . • . . . . • l+t ::'.x~.:.. i ~ fl vt` . . . . . • `l+ `I` ! . I I ! . t~ I ! ! . l . . / . ♦1••~`1♦ ...r:YI !r ~'p` j 1= i •~~R.~`. . . . . . ~ ~..~~.lr~~._~ ~ . . . • , _ , ' . : . . . . . . . . : . , . . . • - - - . , , . . . . r. . . . , . . . . . . . . . . ~ ' . . ' . . . ~ ' . . ` . . . . . . . ` . . . . ~~•<< . . . . . . . . . . . . . . . . . . . !41 I ,~,~t • ~ . . . . • . f`/ •s• s`• i , . . , +,ti ~ + r i% % • i % . r , • % i,. 'L' ~ ♦ ♦~0 ` r ♦i♦ j 1~~t.r~'• . • ti ~ • . . . . ♦ ♦ ♦ t t :,r'r :,i :tr rt: . . . . . . t . . r r a r , : . . r • s~f t~ . . . % - . . . I . s r . . . . . . . . . . , . . ~ r . - . . . . . • .~.::.1.1_! ' - ! a REQV L1ST FVR ~ES! lTl\ !L!E!' IL'X i ION $30.00 oArrE August 16. ngs RC3AD NAIVtE Various roads throu,gTnnut tbe plat CItPIRID # N/A NAME OF PLAT 5he1Tey Lake Piat # PE-1750-94 ADDxESS oF BLDG N/A NAME Q~ BLDG PRoJEcT N/A BLDG#B9 N/A S 24 T 25N R 44E FEI]ERALd'STATE PRQJECT # 'N/A PRO.TECT LDVfITS 1st phase gTat baundary EXISTING CONDMOIV'S: PRVP05ED WPROVEMENTS: RC)AD 'VVIBTH ROAI) SLIRFACE - AVG. DAII.Y TRAFFIG ° - Current Traffic Cauni Design Year Traffic CouBt PRDlECTDESGkIFTdON Thi.s proi ect is the develflvmesat vf the lst phase vf the 51te1Tey Lake Freliminary P1at & PIID. This phase cQntaitas 4th Avenue, kotchfard Dri,ve, Cnnklin Road & assvrted private rvads, as wel1 3t wi11 facilitate Che platting df agproxima.tely 100 lots±. PRC]PQSED flF-SIGiW GEViATIC3N This design dev3ation xs intended tv piclc up thvse iLinnr-_items- wTlii'ch aze eithex nnt covered in the 19$1 SCRS or are a deviation from those standards. see letter attached. 7USTIFICA,'TION: See attached Tettex snd exhih3ts. SUBMiTTET7 BY T°~d Whipple, Inland Facif ic Engfneeri.ng Co., Ync. DA1'E August 16, 1996 AbDRESS 707 W. 7th Avenue, Suite 200, 5pokane, Washington ZIP CODE 99204 PH(INE # t 509 458-6840 FAX (509) 458-6844 ADNIINISTRriTIVE VARItlNCE FE~ OF M.00 PALD T[3 SPQKANE COUNTZ' I026 W SROADWAY, SPOKANE WA 99260-0170 PH{?NE (509}456r3600 FA3C (509)324-3478 -REQUEsz° Wtt_.F. NOr BE REVIEWM wrrliovr FUNDs- t~5 CHECIC ~-C'D # IZ,ECEIVED BY 6 I3ATE jr ~ k iga~v 3~ ~ ~ , • ~ IN'LA'N❑ PACIFiC ENGINEERING, INC, August 16, 1996 W.O. No. 93143 Spakane Counry Puhlic Warks W. 1 026 Broadway Spokane, WA 99260 Attn: Ed Yariy, P.E. Re. Shelley Lake - PE-1750-94; Uesign Dez=iation Dear Ed: Per aur conWersati4n yesterday, please find encIosed a lcst of design deviatian hausekeeping itemslissues which have been pr&viously discussed and called out in the 2nd subrraittal Ietter dated June 28, 1996. This letter describes thcase items that were noted in the 612$196 letter and to my knawledge make up the rernaining items for which vwe wilT need design deviativns in order to obtain project apprcavaP We are requesting Llesign Deviatians farr the To1lorving: 1 As showvn on sheet 5 of 14 the existing roadvvay profile of 4th Avenue has seweral sections that fall helow rhe SCRS minimum of 0 005'!ft of slope with the minimurri slope at 0.0047ft Theref4re we are requesting a design deviation far 4th Avenue whieh would alaow the design for the proposed improvements ta match the existing 4tia Avenue road,way profile ecanditians and fiall below the 1981 SGRS minFmum of 0.0457ft. 2. As noted in the earlier submitt.al a.nd as included within this submittal, seVeral of the roadway cross slope grades nn 4th Averaue resulting from i.he roadway widening are belaw the SCRS nninimwn of 0 0057ft (or 0.5°/o). As shovn vn the attached form dated 9f22195 the minimum resulting cross slope wauld be 4.4047ft (or 0.4°/0) These fIat slopes are a result of inatching a new crass slope and curb profile to the existing 4th Avenue cross slope. We recognize and have made appropriate nates %vithin the plans that will require a Washingtan State FLS ta insure and certify that the curb stakes are per the plan prior to constructian of any crarb. Therefore, we are rec}uesting a design deviation far 4th .d.venue whickt would allaw the 4fih Auenue cross slope ta rnatch tca existing 4th Avenue roadway Grass slape arad fall beIow the 1981 SCRS minimum of 4005'Ift. As shawn on sheet 7of 14, there have been severai "eye brows" or "Icnuckles" proposed at private rvadway intersectians Althvugh, the 19$1 SCRS does not prahibii these design ePements vn private raads, we are requesting a design deviativn as they cQUld be cvnsidered a nan-standard roadway design element. Per previvus discussiQns and 707 West 7th • 5urte 200 2020 Lakewood Dnve • Surte 205 Spokane, wA 99204 Coeur d'AEene, ID 83814 • 509-458-6840 • FA]( 509-458-6844 208-765-7784 • FA?t 208-769-7277 p P SpAkaIIE CDllI2Ly August 15, 1996 Page 2 direction, we have contacted and received appraval of these design elements frazn Spakane Gaunty Fire Distriet Na 1, a copy of which is attached. Additianally, we have tried to evaluate these roadway configuratians in regards t4 geometraes and safety and have determined that they would praVide a measuxe of safety beyond the nvrmal private road intersectian where two fairly narrvw roadways would intersect and where there is a higher likelahood fior pedestrian or bicycle traff cTherefore, we are requesting a design deviatinn for these non-standard roadway design elements. 4. At this time we have provided tv Spokane County reaadway sections based upan the 1995 SCRS, AASHTO cla.ssificatian method. Therefore, we are requesting a design deviation from the 19$1 SCRS roadway secfiion design pracess tfl the 1995 SCRS roadway section design guidelines. We feel that a better raadway sectian will be praWided if the AASHTCJ gradatians as outlined in the 1995 SGRS rather than the "R-vaiue" tests frorn the 1981 SCRS can be used. Therefare, we are requesting a design deviaticrn to allow the use of the AASHTO gradation testing nnethods far rQadw+ay subgrade determinations rather than the R-value rnethod. 5. Due to the incIusiQn of severa12Q8 pands along Rcrtchford Drive and thrvughaut the plat, we are requesting a design deviation ta modify Roadway Section Na 2 of the 1181 SCRS. This modificatian would be to mave fihe sidewalk frvm the back afcazrb and rczeander it witfiin the RaW and sidewalk easements to allow for better landscaging and 208 treatrnent adjacent to the roadway. The meander distance will var}+ from 0.0 tQ 20- feet. This will have no affect to tYae safety of pedestriarrs along any of the adjacent roadways except to provide additional separation between rhe pedestrian and through vehicles. Therefore, we are requesting a design deviation to mvdify Rvadway Sectian No. 2 of the 1981 SCRS as noted. Your app~ovaI of this general design deWiatiQn is requested. Should yvu have any questions please ca11 at 458-6840. 5incerely, Inla Pacific g eering Co., Yn ~ Todcf R. ~hi ple, . . TRWItw enclmsures cc: Landmark Builders, Buster Heitrnan f 1e _ ss~ti INLAND PACIFIC ENGINEERING, 1NC. June 28, 1996 W.O. Na. 93143 Spokane Caunry Plublic WoFks W. 1026 Broadway . Spokaize, WA 99250 Amn: Eti Parry, P. E. Re: ShelFey Lake - PE-1750-94 2nd Submittal Uear Ed: Enclvsed please find our 2nd ftall subrnittal of the Shelley Lake Plans and Drainage Report. These plans have heen revised per your cvmments received on May 14, 1996, Enclosed yvu will ~tnd the fallawing: 1. Twa sets of band prints including road, storm and ESC plaa.s, as requested vne set has been marked to reflect the changes. H. Twv capies vf the revised drainage repart, where applicabPe either a revised note has been added or in the text of the docurnent the text apgears highlighted. HI. Your original drainage report and plans. IV. New lot p1an sheets, prior tv this submittal we did nat include any as none were needed. V. Rmtchfvrd IJrivelCvnklin Rvad super-elevation warksheet. VI. 4th Avenue super-elevativn transitian worksheet. VTI. 4th Avenue Curb Design. A design deviation far the law grade situation either is atta.ched ar will be submitted shortly to allow for grades less than [I.[305'fft, VIII. Capy of the apgroval for tlne "knuckles" as requested. These wi11 also be part vf the subject Qf a desagn deviativn, t.his deviation is either attached ar vvili be forwarded shvrtly. ZX. OriginaL letcer from Jerry Peterson, P.E. regarding the reCaining wall cQtxunents from your review comments. X. C)riginal Scril Classificati❑n testing analysis performed by Jercy Petersan, P.E. far the rvadway sectians prvposed. XI. Copy of the rest of Rvtchford I)rive ta the south, please be aware that triis is nat a final design ar3d if any design deviativns are required t`iey wall be applied far in ttae future. XIT. Two cQpies of the sight dsstarice easement exhibit, if these agpear correct we vsrill incQrporate into the fTnal plat, the areas shawn have been incvrgorated into the plans suhmitted. The design speeds used were 35 MPH Qn Ratchfard Road and 40 MPH vn bath 4th Avenue and Canlclin Raad. 767 West 7zh • Surte 200 2[}20 Lakewaod Dride • 5uite 205 5pakane, WA 44204 Coeur d'Alene, IC] 838E4 509-458-6840 • FA3C 509-458-5844 208-765-7784 • FA1C• 208-769-7277 Spakane Cvunty June 28, 1996 Fage 2 The enclased glans have been prepared in accvrdance with the 1981 SCRS and the current Spokane Co. Guidelines for Starmwater Management. As with er~ery submittal our goab is for yau to review and approve these plans and doeuments with this submittal. Any review cor~ments sttould be directed back to this offce to zny attentictn. VVe have made every effort to accommodate aIl of your cazninents. Belaw is a brief descriptivn for thvse items vvhich may or tnay not have been specifieally accornnavdated and an brief explanatian as to the situativn. GENEEI2AI.s 3. Based upon a conversatian that we had, you indicated that we rlid not have to provide a design for the future 4-way intersectivn as it will ultimateZy be vffset and the future ROW only exists as a Tract X parcel. 7. Based upoaa discussians with the fire district we fiave received specific approval far the "knucklesleye brows" and will send the mylars to the fire district prior to subrnitting finai mylars to yau far apprvvaI. Acopy of the haad written approval is attached. ROAD AND DRALNAGE PLANS Sheet 2: 1 . A,t this tAZne, the raadway sections have been detenmined from the matrix faund in the 1995 SCFiS. Eirther attaehed to this document or shtirtly follawing, a design deviativn to aTlaw t.his will be transmitted far appraval of this methvd. Liicluded as part of this submittal zs a letter fram the geoteeh.nical engineer evaluatung the svil types. Sheet 3: 1 . Based upan a conversatitan witla Bob Bnuggemar► of the Gounty, Conklin and Rotchford will he signed at 25 MPH, t,herefare no speed reduetivn signs will be required. Sh+eet 11: _ 1. Enctvsed is a letter frvrn the Geotechnical engineer deating with those portioris of tlus comment vvh.ich were nat incvrparated intv the plans. - Sheet 12: 1. No grivate road entrance was prvuided or delineated at this time as the entire tumarvund and temporary road connection are gravel and therefvre wauid be difficutt to rnaintain and delineate. If you desire, we cauld install signs denating private rQad, glease advise. 5gokane Cvunty June 2$, 1996 Page 3 cALcuL.ATIoN,5 _ 4. At this time no affsite flows are arnticipated from any part vf this praposal, therefQre, no rn.itigating rneasures have been included. We Feel that we have accammodated all camments except those noted and therefare are requesting appraval vf this praject plan set. I7uring your review, we will gladly take the time to diseuss any review situations which may arise as we feel that tWs may facilitate averall appraaal much mvre quickly. Please call with any questimns or cQrnnents. Siriccerely, _ Inla d Pacif ineering Co , Inc. ~ . ~ Todd R. Whipple, P.E. TRWI'tw enclosU.res cc: Landrnark Builders, Buster Heitman fiTe C. i . $El 9 aQ~ s Ia tR N , ° , 9 ° ° u ' ci FI 10 g'T' 1 ! ' ~ D ~ I 1 N 4 I I I ! 1 I ~ I p I I F p 7 Ca cs 0 a 6 C7 C7 6 5 ~ LU ~ f s s, N E~ ~i ~d $ [d ~ ~ Ei R c! ~ ~Y ~ 4 ci g P -i ET R R ct ~7~ ~ ~ ~ ~ N ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ $ • ~ ~ ~ ~ ~ PM JQ~ r,l~ SPi3~E 'V'~lX.LE~' F,+ ~lEPAR''11~I~" ~ CC: ust l E. 10329 sPxAGtrE xVENTJE ~ r SP'OKANE, wA 99246 f (509) 928-1700 f . (509) 927-2227 FAX FACSUOILE C'~VER SEWXr TQ: r,cca►. DATE: (i~~~~~UAL) _ --rGP5 (OOMPARY) FRO3~: ~~"L I+iU. [3F P.AGEB / ~ (INCT,UDING CaPER SHEET) ~AHME3~"~8: PC- Q) eoL~ ~ sg ~ . ` . . ~ ~ EWE: CS' ~C.. ~ - a To: GD~PA FIY: iNl.ANO ~'AGlFfC EA1C;INE~#HG C~?. C~~~ _ _ 7'D? West 7"#y Arre., 5t~r~ 200 Spekatte, WA 99204 if-AX HUMeEt. 7eLephone c {509) +45"1340 . FAX - 458-6M4 itarfl: ~ ~ ~ ~ ~ NuMSER OF PAGEs: JaB HUrAsER Tuct- COVEa PAGE ~ wnn: - Gw..~, l 5 ~,l.t ~ ~ ~ • - t ~ A 1~~ r ! rr • r -ur_ ~ . r ~ 4-141~ - - FAc YRANsMISsIora ~ 5 NO. 6 . . " • J. ~ ' ~ • • ~ • ' ~ ~ J~ : ~ , ' ~ ~ ~ . • • ~ ~ ' ~ i . ~ ! - )fr ~ • /j/ ~e~ j ~ ~~y 7 ~.~r ~4 ~ 4 ~ ~ t ~ ~r A4 ' . 10 10 i • V • ~ '2(y7 OP ~ I ~ ~ ~ S. ~ y,~ ~ r,L- i r► a, G~tiu . , ' (D. , iN-rERSEC~O~ No' 5 i-=2~' - . • ~ , lr • • ~ . ~ _ , - • ' . . ~ . ~ . ~ ~ ~ ~ ~ ~ • . ~ 1 'R ~ ~ IA~ y ~ OM~~~ ~E ~ ~ . N No~ 9 _ 9 - ~~RSECTIO ` ~20 • ~ ~ e ~ . _ • . ~ .lune 20, 1996 INLAND PACIFI+C ENCINEERING, INC. Spokane County Eragineers Engineering Deyelopment Senrices 1426 West BTOadway Rvenue Spokane, 1f1lashington 99250-01 T0 Attn: Ed Parry, P.E. Re: Resulfs of Svil Crassitica#ion Testing Shelley Lake Devel+opment IPE Projecfi Nv. #94143 Enclosed please find the resul#s of soifs classifcation testing by our subcantractor, Giffiord Cvnsultants, Inc. on five svil samples ❑btained frvm the above referenced residential develvpment. 5vi1 Sample #1 was obtained fram Lane F, Sta. 24+00, at 15" ~eft af approximate centeriine, at 0.5° helaw pro,pvsed subgeade elevation. Soil Sarnp9e #2 was obtained frvm Ratchfard DriVe, Sta. 30+60, a# 5' rigFat vf the approximate erenteriine, at 1.5' belvw praposed subgrade elevation. Svil Samp[e #3 was ab#ained from Lane p, Sta.12+80, 15' right of approximate centerline, at prvposed subgrade efeuativn. Svil Sample #4 was obtained from Hamestead Lane, Sta.10+00, at approximate centerline, at approximate propased subgrade. 5vi1 Samp1e #5 was abtained from Ti imberline Lan e, Sta.`E 7+35, ar 15' right af ap p roximate centerline, a# ap proxirnate praposed subgrade elevation. All soil samp[es were obtained by rnembers of our staff. We abserved soils exposed in npen utiiity trenches adjacent to th~ sarrapfe 9ocatians, and the samples appeared to be representativ+e of the soil c❑nditivns observed to depths at feasi 5 feet be1ow approximate proposed subgrade e[evatians. We certify laerein that #he samples tesfed were obtained from fhe Iocations stated abvve, and tha# based an fhe data enclvsed, tFl@ USCS SflII CIa556fiCat!❑RS 0f GP-GM, GW +GM, GW GM, GP-GC and GM are correct for the samp1es tested, respectively. Piease do nat hesitate to caff if you have any questEOns regarding this leiter ar other aspecfs vf the projecfi. 5incerely, Ep~T INLA'ND PAGIFIC NC oJ' ~ s.- ,►'r~~ G Jef ' P~ter an, P. E. ~o f=~°'~~•~F~ro}~ct Engineer NAL'~• enc. figures 1-5 IEcPIREs 1 11271 11-1 ~ 707 Wesq 7th • 5uite 200 2020 Lakewasod Urive • Svite 245 5pcakane, WA 94204 Coeur d'Alene, ID $3814 509-458-6840 • FAX 509-458-684+1 208-765-7384 • fAJt 208-769-7277 Drawn By ❑rwg. oare QZLJ'_1y Checked Fielyd Rep._____.~_ . SI EYE AHALYSf 5 I HYQROMETER kHALYSlS ~ StLE Of OAffilnG Ew IteCNES I HUM9fR dF MESN PCR IHCN. I1 3. 51dH6AR0 ~ CitACw SIdF fN MhS m m n w ~ ~ ° m ~ v c a o " • o 0 6 ~ b p r.+ o 0 o ra v o a v v ~y ~ e'! N - - 1~ Hf f^! y ~ fY •f ~e M ~ ~ e n • Q 100P ~ - I V 4 ~~F-~r- - - ~ ~ i i 0 v _ - ~__~~r~ ~y_~---~r.~ r 1-- i . ~f ~ ~~`J -a - } _ ~ w i ~--i- i = - ~ ~..__._L__.~.~ 'i I~ I I i ~o I 0 ~ 0 -~i-- , • -~••-'A. ~ `I I ~._,e,..__ -r a - w^-- I S ~ •-'I ~~7- ~ 50 " ~ ~ - ---i---° - - ~ =e + • ~-~~.,.a.~~ a ` ~ q a o 10 ~ ~ 7C .~_l~ r~. ~ ~ '°'4_ - • 3 ~ ~ .I ~P` ~ u, _ _ ~e_~ _ i ___......_..;_.,_~3~.~--~.._ _ - }.r~-• 0 ~ ~ ~p J e_~. tl , ~ _ ~ u - - - "i - _ _._..._.i. t ~s'-' _ _ 1.: . r _ _ ~r '~Y cc cn w ~ - - - , ...+._.~-°-~~~..i ,IJ,.._^-^- • -r _ L_.c~---~-- F- S U _ ~ 4 • . . ~ - 1- • a~ _.F v I - ° -.1_ _ ~~_~~~._._r ~ ri- 1 ; f_••_+ I ° r -I"_~_._. CE: 1 _ . . - •.d __~~~1. e.~ .~~_~.e~ - ~ { - Y i , A 1 ' ~ ' S.. d -G..•- . :,r_ . • . ~ - _"_is~ _ -o. _.t~ i_i _t . _ _E.... Q.1 ~ _ _ - `Y;- - I i •1 + _ • • ~ _-j ~ j___ r ' ~_-r--i fi ~ ~ 40 L,..r - " i ~ ~~t._~fi.~._i - ~ L-}` r~ .Y..~- _3~ w._.,-..~e_ °C ' _r.~...-1.t•• I 1' ~ y-~ 7v fr a~ 30 a - _ ,4..__ --i__. , __1__....__- _ _ _ •-.__r---_._ . _ Y 6 _L. • -T~ I--_ - - e= - _ r.~ ! ~e~.__}-~_ i , n go - - - " ' ~ -_--a---.~ J - - ~ j- - a . ~ - - - o ^ : ~ _v ~ u~ ~ ~ ~ I ~ ~ ; ~ , on 0 0 ~ ~ w 7 ~ r» » ~ vr r r~ +v - a o a e ~ O m ~ [r - • . . . . p C G o O 0 O O G O P ~ ^ - GRABN 5d2E !M MILL1METERS ' ' ' ' . . . . • • ¢ CqBBLES I COABY( ~ FIHE ~ C6AR5E I MEOIIIM I fIHE ' j Cf{AY[L ~ SAIt9 + S I I I„~A• I 4L ~ PL P SAKP4Z r CLA$SIFI`ATION x ~a M pEP&H-Fi I U 5 C. I 5hsllay Lake DeVelapment , f Larss F ❑,5'belraw GP-GNI 53ightlp silty, saridy GRAVEL 2,5 Veradele, Weshingtan 5TA24+00 S.G. GRhIN 3lIE GLA53CFICAYIDH 1 15'L7 j ' June 5995 E-]ll6-O1 ~ GSFFaRD CQNSUI,TAHTS, INC. GeoteGhnlcaf Engineers Draxn By 5A,\- Qrwg. Date (n-L~[ Checked dy.'iVL r Field Rep._~_ ~ S1 EYE AHALYSI S I HYDROMETER dNAlYSI S 51[F Or OP[NIHP IH 9HCHF5 ~ NUMNfR OG MESH PER IHCH, U S 53dNQAR6 ~ GRA 1Ft 51I F IN PAH • .v ° m cr v ~ v a a ^ W s ~ V ° ° o v~ e Q a e. o o n r~+ o m r n r. ~ r..n ~ ~ ~ w ° w . •0 ~ , 100 - --l`"r-` 10 9o _ _ 1'_ . w"~- ~a~.v ~ _I lr._ ~ ~i-.-_X__ _Y ' _ .t j. ~.__~1.~.~ 47 - - • . ~ ~P i ' ~ x _ y ~ ~.v S. 6 _ ~h-_i l ~~~a_.-...~..~__ " 1 N t_~_• ~i" aw""""1 ~ •.Y. , ~ . , ~~~_L 4 _ _ ~ i , . • - - ~ - _ J 10 30 ~--i ' i - T;~~°_-••.a•--~_r x ~ _ • i . _ r... _ ° ~ - ~ ~ _ . - j ~ ~ ` - ~°-i--`~" _ - ~•~~~e ~ .w ~ ` ~ ~~v~~-_-• _ ~ ~ ` ' _ • ~ ; „----•r - - 1--. I•~ I Y.~__ .-~Y~_ 4J LLJ 1 D ~ ,„,T..~.,~. - ~ _ --r-._.r~~ 1 ~ ~ • L.~..}.~ ° r---~ ~ m y" _ . ~ _ r ~ ..1 e ~ . ` _ _ _.w~.,,~~'. . e- LL~_ t _ - i. ° . ; ? a . i. ~ i~ = y rm u E~ - ...J . ~ _ ~ ~ ~•j °j w cc w 50 -'--i -•-I- _ -f_ _ ~.i_.._r. i ~ ~ ~..~.4 _ ~~~~,.....4~r...-~r S'~ ~ -1- r-m.._~,....••-• ~ ~ ; _ • . . - •-w... __~l__.._~...~..._~---- ° - , • - _ ~.~L_,._.~ ^ __~_--.--3 ~_Y ~ i ~ - ""__'_..,-.i. ~ ~ l..v-~ --1• - _ ~ _ CS ~ --•--t_..~ ~ ~ _ ~ 40 6 4 r ._r _ _ _ _ ~'~i ~I-~ _...to.~~_~~LS~-~-~-- - c, ~ Y-....~_• i__ - _~`~-k ~ ^~P a _I 1~~ ~ ~ ' ~ ~-~1 ~1. I~~_.__~ . ~ i i ~ } y_.~_•_ . c.... LLJ 7 p i ~ r i a a • '~'"r ~ ' _ 10 ta~ ~ ..L_ ._-i •--.e_. -9 _l_...._ 20 B A ms__~~^ - - - • f - v _ ~ - . _ _ ~ e ~v v r ~ .'_..i. ' ~ ~ ~~_a_.~_ ~ e ~ ~ ~ ~ _ : i--- W= ~ _ ~ •,~_:•~~Y _ `0 ~ - I~-~.~~-- -e i i ' --_~T. _-_-~.~F~r~"~f~:-. • . .~'Ja _ _-~•-F - - •.T~_..._~._....~. S E~~'°"__~ - ~ . _°~._~..6. . ~ ~ e - - - _~.r.__ _ ° '""Yj.~^_ :-__~l`; ~ -I~_. ~ Q l~~ o m a m ~e ~ n ^ n • y`1 }r • - u • rp.[~ • o Y a a o 0 o e o a ~ e~ N Y R K i l~ SI5. L I1u• 1~1 I41. IME4}L R.l ~ • ' Ka tl p O O 4 ~ COnBLES ~ eQARsc I r IHE I GoARSf I kEOium R FI Hc ~ FINES ~ CqAYfI I SaNO skwrLe I DEPTIt•i i I U.S.C. ~ CLASStFiCAi30N N A r ~ HQ 1 I'~ LL ~ PL Pi 5helley Lake D$velopment Rvtch- l.S'belesw GW-GM Slightly silty, sendy GRAVEL 1.4 , ford ar. S.G Veradale, Washington S.G. i sTA30+6c GRAIH SIIE CLASSfF[CATfOH ~ ] ~ RT June 9995 E-1716-01 ~ GIFFORti C{}NSULTANTS, INC. GeotechnicaP Englneers brawn 6y f?rrrg. Date_ (p-l9'~~ Cheeked Qy~~L, Field Rep.~-------° v S1 EYE AHALY51 S I HYDROMETER AHALYSI S Sit[ OF OPEKIMG Pn IHtHES I HIIMBEk OF kS[SH P[R IHCH, I1 5 SiANPRRO GR41H 512E li1 mM ~ 4.v 0 4 ~ o a a a • y d ~ 4 Ca o 4 4 v e e Q G U ~n v _ _ _ _ ~ " T' ~ • -T 100 • ~ . j ~ --f~ ~`----3 ~ ~'~_:b° - ~ . . - - ~"--s--=~__ ' - --f - d ro _ 1 y-- 90 i_- -j•-__ ~ - i_.,~~_..__~ _ _~.c.~. r~i_ 16 - - - ` ~-°--f-- - . °'"f,.~ ' i~ ~ rt - - -_~-I ~ ! - _-~L~.. . I ~ L--~ - - - ! 4^-^~-^~-' .,~r~_~~=- - --•--~.T_y.l... , •--L--~---°'~ . ~r ? ~ - ~..E ai i.~_~.- Be 20 ~ ~ } ; : _ • - )4 - i. ~ r.. " _ - -r i it ~ • ~--Y • ~ - _L~; _dH`",a.~ , i i ~ _ 'I r ~i~ - 30 ~ X ...s..e,.' _ __r_~-._--~- i ~P,~ I I •~----~^{-i • . ° ».a,~ 2 -~y ' ~ ~ ~ ~ `~._.l~T _ ~t ~ ~ ~ g o _1_ ..~.r- m _ ».k-. - i ~f ~ _ ....~,i~v. -~--'----i co ,.:...x . _.I.- ~ ' ~ - ..,.~_..~._e_~t_ 4 ~ C . ~ ~ ua 5 0 50 I y ~ Eo •i•._ _.~._i 1 N ~ y~- ~ *r Go c~.a - i -•-•~t - ~-•-.r-•__L--~ ~~..r~----_ ..b ~ l ~ °e ~ ~ w ~ ~ ' -f- > - j ~ L C-, c~. 3o )a ~ , - - ` _ f~! , : ; _i. t • 00 ~n - - .~~~c_~ = ~ _ _ - TM } ~_;~.'-~-l~~--~ ' ~ ~ - , w~ ~ ~_~.1~_ ~ ` _ _ ~ 5 _ ~ ,4_, • i_~.~f.' ~ ` ~ ~ 4' w 0 _ ---J--+ -!-°ti ~ ~ ^ • yf- Y~ r. 70 ~i i~~ : '4 ~~i'~ - ~ I- ^ ,r_ =i r _ _ - - - =t ~ - ~ ~~_a a.u..v _ _ . ~ ~L---~ t ~ ~ = ~ Lo0 00 n = ' o ~ o m .~n - • • ~ • ~ c 0 o sa o o v a c 4 GRAIN 51IE IH htiLEIMEEER5 • • o 0 0 0 ~ o ~ C[}SBGES [ Cg"R" I FId1E I C6lRSE I MEf11UM f FINE ~ FINES ~ ~ GRAYEL I SAKD ~ , SANP►E p,~piN-fT U.S.C. 'CLASSiFICATl47~'f W.C. ~ Cti P► PI no 5hs11ey Lake Deaelopment Larse D, Approx.SG GW-GM 5lightdy silty, sandy GRAYE4 2.5 Veradale, Weshingtan 5TA12+Sa~ ~ 15°RT ' GRA1N slaE CLASSIF6CAifaH ~ ] Jung 1996 E-1716-01 GIFFORD CONSUL iA1VTS, 1HC. Geotechnicar Englneers erawn 8y 15~ _ arwg. ❑ate Pn-Lj'q_(p Checked Field Rep, SIEYE ANALYSf S ~ HYaRbMETER ANALYSE S SIIF Of OPENING In INLHES I HSIMBER OF MESH PER IMCH. I1 S STANpAqa I GqAIH S11( IN mM R l o ° v e~ _ e o e s o C" 4 4 0 o a cr o n o . ,.t.. ` .e.r__-~. e- ~ Y_~ 9 i i 6~_•- _ _ _ r~_ ! ...~J ~ .~~~1 ~ 96 L 10 I ' I I I •-ih ~ 4 ~ ~ - T~-..-~-_~ ~ ° _ L. ~ ~ - ~ _ _v ~•~'-7_" r -J_ _vJ._-~~ n 0 l_.: I _ . 20 i` -1"'" - • - - f 4 i 7 - _ _i . ~ -L - - •-_._.~._F._.~- ~ - - ~~f - ~ ~ i I•' ' ' 2• . i. I.... 76 ' vi -•~•'p "'-"----'~j°-- ~~I'L~~a..-~P- _ ~ . ~_.,_....e 3 0 .,r..r.r.~_+- f i e. I • ~s.-~ . } ~ - • - , y"~ _ f-- f _ _ _ ' " ~_r._.~. _.~.~~~I.Y---- . ~ " 9• : ~ F . . _ Jc ~ Gp ~ ~ - _i.._.__e......a_~ 40 4- m ~ T • - -q _1_--i ~ _ a. _ . F' _•y._~ _ t--~ m a . ; _ ~ _ i t_ ° '~"i , ,.Y~4 _ so ~ L., s a 47-N--4 i A o s o ~ ~ ~ I I I .-°Y T _ L.e.a...._.~..~-_'•._..' L4J ~ Y F I F _ ~ 1~~' CL- ]0 ap Lai PE I_ ~ - • j - i - i F`i • - , - ~ f ~~.~•~•--°4 w~ ~ ~i \ z - - --~---•~~°}-t-~-•~-}-- -Y~ 20 - BO =~_--T~- - _ = ~ r_~ ~ .=~~a• " _ _ ~ • _ -E~-- ~ o L ' o~ v~m m rt r. a so ~ r n r+ . m ' . . ~ ~ o 0 0 o d v o c rs GRAIH 512E IN idILLIMEiERS " • • ° ° ° ° ~ ~ I C069tE5 ~ IIARSI V f IHE ~ COA85E I MEOfIIdA ~ FIHE cRAv[L ~ yAko ' FINES SAl1PiF ~ 11IEPIq•F i I U.S.C. CLAS$IFICATION HAT,~ LL PL p I Ho rJh911By L8k8 QBVBlflptllBht Hvme- APPrax.SG GP-GC C1aYeY, sandY GRAVEL 1.0 29 97 12 VFrade1e, Wa5hlngtnn SCead Ln, GRAiH S11E CLAS$IFlCAi`IOH ~ iTA1Q+1(]0 7 June 1996 E1716-01 'p GrFFOR[7 C(]NSULTpH7s, iNC. Ceatechnicgl Engineers Q rawn 8y__~, _lDrwg.❑a teChecked flY'ALj ~ F xe 1d ReR. ~ SI EYF ANALYSI S ~ H1"DROMETER AHALYSI 5 512f OF qAENIHG IN IHCS1[S I HUld6Ed{ OF M[5H PER INCH. U s s r A m o+. An y CRA d?I SIIE IN FtM , w 6 ~ ~ o ~ ~ ,o ~ a c v o 4 0 0 0 l tl0 4. - _l-°--~-{__ i _ ~J_ ~ - • • , I ~ II- _~.j ~ ~e•~""`~- ~ ~.~v~.. ~ v...~ " f ~.f ~ - ~ F ~ _ ' -t• _ ~L..~ ~ ~ ~ i ~.t.~' . 1- to ' ' 90 1 L.! i~ I ■ ~ . ..M.- Go ~..'._~......~P..Y. "!o 3~ k 1 1 I I ~ ~ ~ _ -l~'*'--_ ! I I I ..-,-6-" - ~.~_I~.. ~ -f._?_ • - 4-.--- j r~V ~ ' + J a ~ _ -~t~ ~ ~ ....e~.,..~ r : ~ • r •t w ~ 60 ~_~_i ' P_ _-°-~e~_...~ _•fi- 4~--•° -4r:.._:~..'_ _i.e~_ ~ " • - ~ ~ ~ - _ . es ~ 6_ i._ - -~-f_~ }~..i_:.•••--~--- "#"_e ~ s o ~ x zT~- f~__ - ~ _._.y ! ~ ;-_~_.._3~.~~...._-•• ~ ~ , ~ -i - _ ~.~s~ ~~•--•r•--y.~~s... o ~ . _ _ _ _ ~ - f 40 i-:I-,_~} w 50 ~ ~L;._ --Y s ~ ~..~4___~- } i r•..; . -r• t-b a., p~f`e ~ e M„~~~.~. _ _ F~.. y.~ i 4.~ i ~G--~._- _ ~T~~I T A ~ cL 30 . _ . i-:..e_. ' i - ps { ~ - ~ _ - -p~ •i ' - _ _ ~ ~ . ! o s_~._ - - ~4 ~ • ~ ~ Y___• ~ 20 e o " '.~.t - e_- ..r. ~ r - - ° . _ `A__. . . a ~ . .P ~ _ o :~.7 ]la Ll L._ . ~ 100 Q o m ~ rs e. - ~ • • • o v v rs rs c v o a o ea o GRRiN sIIE IM MILL4ki€TERS . . • . o v o 0 0 ~ Gd6BCES P CQARSE ~ r'~nc I coARSC ~ MEOiuaa FIHES ~ ~ cs+~vtL I s4ya ~a~[ I p[PTH-FS I U.S.C GLASSIFICATI6N f%~t • iL PL vl Shs118y Lake DavaYapment Timber- Approx SG CH Silty sandy GRAVEL 2Y 3 Veradale, Washingtdn LSne ~ Lane GRAIH Sl2E CLASSIFIGATiON ~ 5TA11+35 ~ 151RT June, 1936 E-1716-07 ~ G1FFORG CDNSULTANTS, iNC. Geratechnical Engfneers ~ , ` 6+•, ~ /y ~ ~ y,~,p. 4~~_,r•s z s: t:~:s ~ ~•~'~":~?u . r~.t 'o ^ 0 (b ~ coq ~ ~ d ~ ~t ~ ~ ~ r ~ ; r`~" ~~~'~r• 2-,~ ~c. _ ~ . ~ ~#4 7 ~`k~ ~Je r f ~M1 _ ~ ~''°h M'. 1 r ~i l .i.~ ~n ~ ~ ~~,'~'v - - =W ~ .t`V.i fv;~ s^a~~'. id ' 1'tm~=y'~. '~y'' ~'~•~s ~ v' i'~' k:.'.Y.♦ ~ s ~ ,~~e ';'l~'#, • , ~,~~~+~af~;„ , ~~.L-: `,~~p~~ya-.~ ~ ~~Y~~~, ]q.- w ~ • ~ ` ~ 4 `f, ~c: ~~~".~jy~ ~ • 0w~ y` . • ~ - , - x~ • ~ rti;_'s' . 'a,. - ~ " • . , a _ _S ;w.!~ _ r ~ ~ y • ` i , . ,tr CY~~ ;p}' £ rt g`~ • , '~4':li..~~'r4 F f _ it - f -1 4 _ r ~y'.. ~ FiSR. ~ .a . y g ~j ~ ~ ' ~ ~ •`~•r- ~ - ~~'+~y, ~ ~ • Li. rv _ ~ - ~~~P~ ~ _ ~i~ ~~3 • . _ t• ~'^4~' .T .y,:~ ~ f~4 : _ - 1i~,s` ~1 , ' 4r-.i H.t.:~', e',;'' i ffiY~.r~'~ ' 91Y F•• Aladosu ~rre°"'[us3c riv ray~~,' -r i ! ~ - L . _ • riyh~±,: :~+~y a;;;''.'~'r;e'~r~.a~,s:•~'~ &,F:ar ~xi . .i~ • ~ "tt f . • r ,4~, . w ' - . r ~ . • " ~ r~ • "P e ' •d'd+Jri~.~~_^S Y_ . . ~ . . ~R. RECEiPT aare-3 1 9J6 9026 ReceiVed From ~~~M 4ESr"^A IJ ~ Add ress i Dollors $ '0.00 Fvr J~A,°t'b n3 i 2 ACCOUNT ~ HOVM PAID AMz 01 ~ I C CA5'i N .3, IL-) C) ~ ncCvurnr ~ ,nnnr. raio ckECK ~ UECE C7~ ER B7 ~ ~(y~ r d ~ 8K808 (REok- - - ~ ~ . ~ INLAND PAGIFIC E1VGINEERING CC3MPANY 707 W. 7th A►renue, Surte 200 Spvkane, WA 99204 (509)458-6840 Fauc• {509}458-6844 TO: er'.( -s4 ~ aaTE: -2 ~J I.P.E. PR(3JECT ATTENTION : -0 PRO TECT NrE: Description - 0 Xerax Prints [j Copy of Letter r ~ ~ ~ ~ =1 Griginal ]]rawing ~ Contract Documents Work Authvrizativn Q Repor# ~ a 5POKF'iNE COUNTY ENGlNEER IVo Capies 1Je.scriptivrz - _ _ . Purpa se ~ . ~ e 0Information ~ Review & Cvmments ~Per Yaur Request 0 Written Approval ~ Signature 8c Return ~ Remarks . S c-4_ ~ r~ Tr r ~e (1~ e- ~ ~e~ r~ ~ 4-~+ tw ~ ,tr L-+1 f~'~ 13c7 ~ e7 C-Ia ~ I ~ ~ ~ Signed: cc: I3 iT'A.NSMT PMS 50-year STQRM 6OW5TRIN~`a METHQD PRD.lECT ShelPey Lake PEAK FLflW CALCULATIQN PRO9EC'f Shelley Lake DETENYIQhI SASkM [7E51GN BA51N A 8 t7ffsiEe BA51N A & Offsite 'QE5IGNER TRW Tot flrea 3 18 Acres DATE 09125l96 Imp Acea 1$170 SF c= 026 7une increment {min} 5 GASE 1 'Time af Conc {min} 8 60 Outfkow {cfs} 1 505 ft Ouerland Fdcsrm Design Year Fdow 50 Area (acres) 318051 Ct = 015 Imperuious Area (sq ft) . 18170 L= 505 ft 'C' Factor 0248379 n= 040 50-year Vvlume ProVided 1972 S = 0060 Area ` C 0790 Tc= 8 43 min , 6y Equafiars 3-2 of Guidefirses Trne Tirne Inc Intens Q C7eve! Val In VoI Out Storage 15 it Gutter ilow {min} (sec) 4inmry (cf s) {cu ft) (cu ft) [c,u ft] Z`V = 500 8 69 516 2 93 2 38 1634 518 1118 Z2 = 35 n= 0016 5 360 4 D0 316 1270 300 970 S= 0 008 10 600 288 228 1764 600 1164 6== 15 900 2 20 1 74 1869 9017 969 d= 0150 it. 20 1200 1 75 1 38 1901 1200 701 25 1500 1 67 1.32 2210 1500 710 A R ❑ Tc TC tata ! I Qc 30 180[} 1 56 i 23 2434 1800 634 35 2100 128 1 01 2309 2100 201 060 007 0 39 017 8 60 293 2 36 40 24[]0 1 19 0 94 2491 ^t400 11 45 270Q 1 OS 0 85 2453 2700 -247 Qpeak for Case 1= 2 36 cfs 50 3000 095 078 24$3 3000 -517 55 3300 0 92 0 73 2928 33{}0 -774 BCl 3600 687 0 69 2595 3600 -1 005 CASE 2 85 39(]0 082 065 2640 390[] -1260 70 4200 080 063 2785 4200 -1435 Case 2 assumes aTime of Concerotrabon less than 5 minutes so thai ihe 75 4500 0 77 061 2$44 4500 -1655 peak flow =.90{4 Qt?}[Imp. Area] = 1 5[] cfs 80 4800 0 75 0.59 2948 4800 -9852 85 5100 072 0.57 3061 5100 -2099 90 5400 0 71 056 3127 5400 -2273 Sa, the Peak flDw tor the Basi n is fhe greater of the twa flows, 95 5700 0 69 055 3203 5700 -2497 -0 2 36 Cfs 100 6004 0.67 053 3269 6000 -2731 c/~ M C)~ 208' ORAINAGE PpND CALCULATIQNS M, V Required `248' Storage Vvlume C" ~ = Impervious Area x 5 in 112 iNft 757 cu ft rn 50 year Volume Pravided 1972 cu ft ~ DRYINELL REQUIREMENTS - 14 YEAR DE51Gfd STOR! Maximum Starage Required by Bowstnrtg 1164 Gu f! 30 Number and Type of DryweUS Required 0 SEngle 1 pnub[e INLAhlCI PRGIFIC EMGfi'JEEi2l1VG ~ '1 = _ , ~ - - U6, we, ~ ~.4 -/r~ . E ?-..1 I t 1 1 R ' #Z ~,d , ~ ~ ► ~ ' ►i~~1~r ' ~ ' ` ~ j ° ~ i ~ 'ZO- ~2-A 7~ t , ~ i ' , i_AEC'~IVEP S ~ ~ i~~► I~~' l Ep2_s ~ %OV • 77 i I I ! ~I~ s o NF- couwlr > ~ (I r7_s~ ~ ~ ~ I j ' 3 ~ ~ ~ r, ~ - ' • I- Ir4 j i t 1 i I ~ I s ~ ~ ~~r ~ ~ ~ g4 ~ , ► , ~ ; f-~;`, ~ ( ~ e ~ , ■IiiRJ~ I R iV L~ ~ r f-~ I ~ { i ~I~ i ~ I I I V I ' ~ ' t : ~ _~~I ~ ~ ~ ~ , ~ ~ ~ ~ ! s j 't ~ _ , i . ` ; ~•_x , ~ ~ 121 t ~ ' ~ , ~PW VIA& ~ Mt- 4ei i ~ 160 ;wc~ $~,'~i~r ' i ~ ~ G } _ I nI a n d ~~~O El PROJECT PacifiC GALC. lx ,JOB NO. 93/a/~ 'SHEET OF 1 ~ E r1 gIn@eC Ing NIEETING D BY td ❑ATE ~9Z*r west 707 ath, 5uite 200 spok8ne, Wsshingtan 942o4 OTHEA D CHK'DBY DATE ra 549 458-&84fl Fax No. 509 458-6844 J 'y► f PQND "A" +CONSTRUCTION NOTES CD SPOfCAIVE CDUN[TY STANDARD TYPE "B" ❑RYVVELL WITW TYPE ~ "3'" ME7AL FRAME AND GRATE, LANE "A STa. 14+95.65, POND 23.30' RT., TOP DF GRATE EL. =2621.37. BaTTQM EL. = 2020.87 OCURB EIVLEF TYPE "2" WiTH T'YPE " 1" APRpN BEHiMO BOTfORA AREA RE4UIRED = 1,514 S.F. SIDENfALkC. STA. 0+80, T.C EL. = 2022.59. BOTTL7M ARE4 PROVIdED =1,871 S. F. ~ 4' SPOKAryE COLINT'` STANDARC1 CLIRB QRaP Al' CURB RETLIRN, BERM EL. _2022.47 T.C. EL 2022.27. ~ AUE. `°u_ - 22 - ~'7 ~ 64' ~ ~ ~ ~ " 11 ' ~ m ..~0 c.) _ . ~ r' - a - - 22• Lul f ~ cn r~r.rT2' Z ~ 3 , ~ ~ ~ ❑w~arucE ~A5 E~1 EI~dT 1 WII~E BERl~ w i ~ ~ P"~ND ~A~ ~ scALE: 1" _ 20' 1 1 6" H.D.P.E. caNouiT FOR fRRlGATION MBERLINE LAN Tg rwaCT TI E ; ~ 7 k l t 1 f'1!`r A 1 I'1 I°'3~~ /'►11 A I C`TPl I 1 I'~" 17%. ~01J 6 ~ IoaL ~ ~ . Rim 2.092 22 f1 SiarnR 2.035 53 i[ 2 D44 00 INat I-t Rim 2.040 72 fl Sump 2 637 $a f! 2,042.09 I 2 oao Qo 1` 2. 038 ~ l~°_ 1'4 Iriat 1,3 ~ Rim 2,032 75 k LZim 2,035~3 R Sump 262675it Surrsp 7-032'~3lt 20.36~n Elavauon fi Pipa P-5 t ~ ll,p lm~grt 2,037 88 f1 Inte[ 13 Qrr trrveri 2 035 93 T9 FFim z,aaa ~s re ~ 2, Lerg~Eh 2[XI ~!S 034 0a ~n~r a aae 20 rt si ze ys treh ~ . ~ Pips P-2 2.03200 ~ up invert 2.035 ss rl On Irnrert 2,O92 33 ft Pipe P-3 Lenpqs 20000 Pt Up Irn.ert 2 932 21lt Sae 78 Irch ~.P30 OU Qn Irmert, 2 929 85 fa L~iF1 i 76 0oii Sise 78 Enuh du9et OW 00 6Y+5O 1+9U 1-50 2+~ 2+5(7 3+6i3 3-50 4c06 4+50 5+90 S-50 6.00 ~ 8 Rlm 2.929 Qa TS $latlOn ii Sump 2 n29 0oI[ Plpe P-4 Vp Irniert 2 039 75 ft On Irwert 2W9$9 }t ILanpih~ as ~ iL Pi~ P-S ~z$ 78 irch Vp Prwert. 2,p,~B 20 S[ an rrwen a 029 00 n L~,~, 13 sa rc Sfze 79incn ~ ~ ~ M m Cl) M ciP ~ C Z ~ C2 ~ m ~f m ~ FPrvjectiiT litl,ep5hVleyyLake,Project Engmeer Inland PaciFc Engineering p 117aesFadlstmCi93143j strn Inland Paci#ic EngEneering Go. StarmCA6] v1 ❑ 09125/96 04 34 58 PM C) Haestad Msthods. Inc 37 Brtoksrde Rcrad Waterbury, CT 06708 LlSR (208y 755-1666 Page 1 of 1 Outlet I~~ P- ~I I-2 F'-~- I-3 F'-3 l-4 RtojeCt Eng{neer Inland Paeific Engine$ring Peoject Title Shelley Lake StQrmCAO V1 Q p 1FaaestadLStmc1S3143j strra tnland Psclfic Engineering Co. 49125196 04 44 15 PM 0 Haestsd RABthpdS, rnC 37 Brookstde R[sad 1Naterbur}+, CT 05708 U5A (2{53) 755-1866 Page 1 of 1 Cvnnbined PipelNade Report Pipe LJpstreann Downstream Length Inlet Waighted rnlet Total Inlei 5ection Capacity FtVerage Llpstrearn ❑ownsfrearri ConstrucYed Descriptipn Nvde Wade {ft} Area Roughness CR CA ESischarge Size (efs) Velosaty Irsuert Inuert 51ope ' (acres) Coefficaent (acres) [acres) {efs} (Ftls) E[evation Eledatiran {ftift} (ff) {ft} R9 1-1 1-2 20000 0 00 000 000 000 000 18 inCh 5 95 304 2,03782 2.03563 0010950 R-2 1-2 1-3 20000 0 00 000 000 000 000 1 S inch 7 20 3 25 2,03553 2.03233 0016000 P-3 1-3 1-4 11600 000 00 ❑ OS7 000 004 18 inch 815 3 30 2,03223 2,02985 0020517, F'-4 1-4 1-5 2500 0 00 ❑ QD 000 000 000 18 ir1Ch 729 3 72 2.029.75 2.029 30 0016071 P-5 1-5 Outlet 1350 000 000 0_00 0 00 000 18 incFr 6 93 4 32 2,02920 2.02900 0014815 Projeot Title $helley Lake Pr¢ject Engineer Inland Recific Engineering p lha8s[adlstmcl93143j stm Inland RaeiPic Engineering Co. 5tarmCAD v9 6 09125f98 04 39 23 PM CD Haestad Methods, Inc 37 8rookside Road V1laterbur-y, CT 06708 U8A (203) 755-9666 Page 1 ai I Pipe Repart I'ipe Upstream Ctownstream Inlet Weightesi In1et Tatal 5ystem Discharge Length Canstructed Sectian Roughness Capacity Upsiream Dowenstream 1.lpatream Nrde Nvde Area Rpughness CA GA IntenSity (cfs) {ft) Slope Size (cfs) invert Invert Gr❑und {acres} CoeffirAent (aci'es) (acres) [srVhr] (ftlft) ElevatiQn Elevation EleVStion f~~ (ft) ift) P-1 1_1 w-z 000 000 0 00 000 000 1 51 20000 0010950 18in& 0024 595 2,03782 2,03563 2.04072 P-2 1-2 9-3 0 40 000 4 04 000 000 1 ai 20000 0016000 98 ineh 0024 720, 2,035,53 2.03233 2,042.22 P-3 1-3 1-4 000 000 000 0 00 000 2 18 11600 0 020517 98 istCh 0 024 8 95i 2.03223 2,02985 2,03523 P-4 1-4 1-5 000 000 000 000 000 3 62 28 00 0016071 18 inr-h ❑ 024 7 21 2,02975 2,02930 2,03275 P-5 1-5 Outlet 0.00 000 000 0.00 000, 530 93 50 a.014815 18 mch 0024 6 93 2,029 2S] 2.02900 2.03275 PrQfect Title, Shelley take Project Engineer, Infand Pacif'ic Engineering p lhaestadlstmG193143j stm Inland Paclfic Englneer3ng Co StarmCAD v'1 0 09I25196 ❑4•43 49 PM 0 Haestad Methods, Inc 37 Braokside RQad Waterhury. CT 06708 LISA (2Q3) 755-9 6fi6 Page 1of 1 NaCle ReF]QC# Nflde Inlet Weighted Inlet External Tatal Inlet External Upstream 5ystem 5ystem TOtal Adsiitional CarryaVer KnQwn Total Discharqe Graund Rim Area Raughness CA CA CA TC TC Flow Flow Irrtens3ty Watershed Flrsw (efs) Flow Upstream (cfs) Eler+attvn ElevaUpn (acres) Cfleffiaent (acres) [aeres) {aeres) {mm) [min) 7ime Ti ime [inltrr] (C4A) (cfs) {cfs) Addsd (tt) (k) [min) [min] (Cfs) (cfs) 1-1 000 000 000 000 000 000 000 000 000 000 0 00 ❑ 00 fl 0❑ 1 51 000 1 51 2.04072 2,04072 1-2 000 000 Goo 0.{10 0 00 000 000 1.117 1 10 p.pp 000 000 000 1 51 000 1 51 2,04222 2,04222 1-3 000 000 000 000 000 000 0.00 292 212 000 p{]p 000 000 218 000 2.18 2,035.23 2.03523 1-4 000 000 000 000 000 0ofl 00 271 271 000 000 CI OD D aD 362 D 00 3 62 2,03275 2.03275 1-5 0_00 0.00 000 fl Oa 000 000 0 00 2 83 2 83 000 ❑(3Q 0 00 000 5 30 000 530 2,03275 2.03275 C7utlei fV1A M1fIA N!A 'dVlf4 0 06 NIH 0 00 2 88 2 88 000 000 N1A NlA fV1A 000 NIA 2,02900 2.02900 F'roj8ct Title' SMelley Lake project Engineer Inland PSCffic Enginsenng p IhaestadtstmC193143j SVn FnYand Paciiic Engineering Cg. StarmCR❑ v1 v ❑8i25196 04 43 04 F'M 0 Haestad Methods. Inc 37 Brnokside Road Waterbury, CT 06708 USA (203) 755-1665 Fage 1 pf 1 DOT Report Pips -IVode- InEet Inlet Tfltaf -Graund- -HGL- -51vpe- -Sectian- -5ection- Length Average Descriptian -EGL- Capacty C+ischarge System Upstream vArea CA CA Llpstream VJpsteesrn Energy DiSCharge Shape (fii) Veloaty Upstream (cfs) (cfs) Flow Downstream (acres) {acres) (acres) Dowmstream Qcywnstream Cvnstructed Capackty 5ize (ftls) ❑awnstream Time qfty (ft) (Tflfif) [C#s) {ft} {min} P-1 I-1 0.00 000 000 2,04072 2,03834 0011001 151 Circular 20000 3 04 2,03846 5 85 1 51 00 1-2 2,04222 2,03609 0010950 5 95 18 inrh 2,03626 P-2 1-2 000 000 000 2.04222 2,03600 0415001 1 51 Circular 200QO 3 25 2,036 16 720 1 51 1 10 1-3 2.03523 2,(}3279 0016004 720 18 EmGh 2,03296 P-3 1-3 [}.00 QO 000 2,03523 2,032,79 0020312 218 Circular 11600 3 30 2,032 99 8.15 218 2 12 1-4 2,03275 2,030.50 0020517 $ 95 98 inch 2,03064 P-4 1-4 000 0 DO 000 2,03275 2,030.50 a 014431 362 Circular 2800 3 72 2,03076 7 21 362 271 1-5 2,432.75 2.0$p.18 0016071 7 21 98 inGh 2.03036 P-5 1-5 000 000 000 2,032.75 2.034.18 0014815 530 Circular 1350 4 32 2.03047 693 530 283 C)utlet 2,029.00 2,02998 0014815 ' 693 18 iracah 2.03027 RrpjeCt Titfe $helley Lalse project Engineer Inland Pacific Engieaeering p Ihaestadlstmc193143J stm fnland Paclflc Engineenng Co. StarmCAa vi ❑ v9125198 Q4 42 12 PfIR C) HaeStBd Method5. Inc 37 BrooksidB RDad WaterGUry. CT 06708 USA (203) 755-1668 Page 1 of 1 Circulax Channel Analysis & Design Solved with Manning's Equatian Open Channel - Uniform flow Worksheet Name: Shelley Lake Comment: cb1 ta cb2 Solve Far Actual Depth Given Input Data: Diameter.......... 1.50 ft slape 0.0110 ftjft Manning's n....... 0.024 Discharge......... 1.51 cfs Computed Results: Depth 0.51 ft Velocity.......... 2.82 fps Flaw Area......... fl.54 sf Critical Depth.... 0,45 ft Critical Slape.... 0_0167 ft/ft Pexcent Full...... 34_30 % Full Capacity..... 5.97 cfs QMAX @.94n........ 6.42 cfs Froude Number..... 0.81 (flow is Subcritical) Qpen Channel Flow Madule, Version 3.41 (c) 1991 Haestad Methads. inc. * 37 Braakside Rd * Waterbury. Ct 06708 Circular Channel Analysis & Design 5alved with Manning's Equation Qpen Channel - Unifarm flow Worksheet Name: 5helley Lake Camment: cb2 ta cb3 5alve For Actual Depth Given znput Data: Diameter.,...,,... 1.50 ft Slope 0.0160 ft/ft Manning's n....... 0,024 Discharge......... 1.51 cfs Camputed Results: Depth 0.47 ft Velacity.......... 3.22 fps FIow Area......... 0.47 sf Critical Depth.... 0.46 ft Critical Slape.... 0.0167 fttft Percent Full...... 31.09 p Full Capaczty..... 7.20 cfs QMAX @.94D 7.74 cfs Froude Number..... 0.98 (flow is Subcritical) Open Channel Flaw Module, Version 3.41 (c) 1991 Haestad Methods, Inc. * 37 Braokside Rd * Waterbuxy, Ct Circular Channel Analysis & Design Solved with Manning's Equation apen Channel - Unifarm flow Waxksheet Name: Shelley Lake Comment: cb3 to cb4 Solve For Actual Depth Given znput Data: Diameter.......... 1.50 ft Slape 0.4205 ft/ft Manning's n....... 0.024 Discharge 2.18 cfs Computed Results: Depth 0.53 ft Velacity 3.91 fps Flow Area......... 0.56 sf Critical depth.... 0.56 ft Critical Slope.... 0.0169 ft/ft Percent Full...... 35.33 0 Ful1 Capacity..... 8.15 cfs QMA.X @, 94❑. . . . . . . . 8.76 cfs Froude Number..... 1.10 (flaw is Supercritical) Open Channel Flow Mociule, Version 3.41 (c) 1951 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, C circular Channel Analysis & Dessgn Solved with Manning's Equation Open Ghannel - UnifDxm f1ow Worksheet Name: Shelley Lake Camment: Gb4 to cb5 Solve For Actual Depth Given Input Data: Diameter.......... 1.50 ft S1ope 0.0161 ft/ft Manning's n....... 0.024 aischarge......... 3.62 cfs Camputed Results: Depth 0.75 ft Velocity.......... 4.09 fps Flaw Area 0.89 sf Critical Depth 0.73 ft Critzcal Slope 0.0180 ft/ft Percent Full...... 50.08 Ful1 Capacity..... 7.22 efs 4MAK Q.94D 7.77 Gfs Froude Number..,.. 0.94 (flow is 5ubcritical) Open Channel Flaw Module, Version 3.41 (c) 1991 Haestad Methods. Inc. * 37 Braokside Rd * Waterbury, Ct 06708 Circular Channel Analysas & Design Solved with Manning's Equation open Channel - Unifarm flow Warksheet Name: Shelley Lake Comment: cb5 to Pond i Solve For Actual Depth Given Input Data: Diameter.......... 1.50 ft Slape 0.6148 ft/ft Manning°s n....... 0.624 Diseharge 5.30 cfs Comguted ResuTts: Depth 0.98 ft Velacity,......... 4.32 fps Flaw Area......... 1.23 sf Critical Depth.... 0.89 ft Critzcal Slope.... 0.0241 ft/ft Percent Full...... 65.55 % Full Capacity...., 6.92 cfs QMAx @.94D........ 7.45 cfs Froude Num.ber..... 0.52 (flaw is Subcritical) Dpen Channel Flow MQdule, VersiDn 3.41 (c) 1991 Haestad Methods, Inc. * 37 Brookside Rd * waterbury, ~ ~ ~ % RECEIVED SEP 2 S 86 sPOKANE CouHTv Er~~INEER ~ Inlet: I-'I b ~ Rim: 2,038.50 f# Sump: 2,037.90 50 r ~ 2,038.00 2,037.50 G'LJ37.00 2,036.50 2,036.00 EIeV3tl{DCl ft 2 , 035. aC} 2,035.0[3 ~ 2,034.50 2,034.00 2,033.50 0+09DF1(~2DF33D,-4MF53D+EaDF`MD4-90 C7utlet: Outlet Statian ft Rim: 2,033.50 #t Pipe: Pa1 5ump: 2,033.50 ft l 1p Invert: 2,[]37.90 ft C7n I nvert: 2,033.50 ft Length: 86.00 ft Size: 12 inch qPr,o]BC4 1~jTit l~hellsya_L•Bke,yF'ipingttCS~T,~.-~PM1p1P0nd+A Prcaject Engineer Inland PacifiicEngineenng p ihaestadl5tmc193143ta stm Inland Raciflc Englneering Co. SYormCAQ V'1 0 08/26196 08.15 28 RM C) Hasstad Melhnds, [nc 37 6rovkside hoad Wafer6ury. CT 06708 LJSA (203) 755-1656 Page 1 of 1 e Circular Channel Pipe to Temp Pond R Flaw 9.30[] cfis Diameter I ft Slope 0 0512 ftifit - n D 0240 L 86 ft dldia A R Q V aepth of flow,d D 23 ft 23 0.1365 0.1364 051 3 72 Fiowing FuEI 1.00 ft 1.0{} 07854 0.25(]0 4.3$ 5 57 Critica! Depth 0 480 ft 04$ 0.3727 02434 130 3.49 Normal I]epfh 0370 ft 4 37 0.26 0.20 1.3(] 4.92 FiWC 0183 ft INLET CONTRDL HWn 0,934 ft INLAIdE3Pi4CIFIC ENG6NEERIMG F Beginning Calcularlan Cycle Discharge: 1.30 cfs at node 2-1 Discharge 1.30 cfs at node Dutlet Seginnkng iteration 1 Discharge 1.30 cfs at node I-1 Discharge 1.30 cfs at node Outlet Discharge Convergence Achieved xn 1 iterativns: relative errar: 0 0 Warning• Desagn constraints not met. Warning: No Duratiion daCa exists in InF Table Information: autlet Known £low grapagated from upstseam junctions. Violat~-on 2-1 doas not meet minxmum cover constraint at dawnstream end. Calculativns Complete Analysis Options Friction method: Manning's Formula HGL Cnnvergence Test• 0 041000 Maximum Network Traversals: S Numaer ❑f Flvw Profile 5teps 5 Discharge Cpnvergence Test 0.001040 maximum Desxgn Pas$es 3 Network Quick View ~ Hydraulic Grade } Label ~ Length p Sixe ~ Discharge ~ Upstream I Downatream ~ P-1 86.00 12 inch 1.30 2,038.38 2,033.87 - - - a E1evations L,abel Discharge ~Ground ~ Upstream HGL I nownstYeam HGL 1-1 1.30 2,039 SO 2,038 48 2,038.38 Outket 1.30 2,fl33.Sb 2,433.87 2,033 87 Elapsed fl minute(s) 4 second(s) Prajeet Title Shelley Lake, Pipfng to Temp Pvnd A Pro}ect Engineer Inland PaeiFoc Engineenng p 1hae5tad\sUnc193143ta stm Inland Paclflc Englneering Co. StormCA[7 v1 a {}9125l96 08 12 39 AM (OHaestad Nlethods, Inc 37 Brookside Road We4erbwry, CT06708 L1SA (203) 755-768s Page I of 1 Combined PipelNade Report ~ Pspe Upstream Qownsfream Length Weighted Inlet Secfion Caper.tty+ Average upsfream Downstream Constructed []ownstream Dvwristream Dawnstream R4ughness Node Etilode (R) Roughness Discharge Size {cfs} VeCcr-ity InVeaf InVert 51ope Crawm Qepth Energy G9eHIGBIIt (cfs) (fkls) Elevation EleVatian (ftlft) Elsvation [ft] Grade 4ftl [ft) tft) (ft) F'-1 I-1 Outlet 8600 ❑ fl0 d 00 12 inch 436 A'ifi 2,037,90 2,03350 G.051163 2,03450 8.37 2,03424 [!24 N/A N!A N/A N/A N/A M1fIA N/A N/A N/A N/A MIA N/A N/A tYlA NIA Prpject Title 5heiley Lake, Piping to Temp Rond A Presject Engineer. lnland Paelfic Ersgineer+ng p Ihaestadlsfmc183143te stm Inland Facific Engineering Co S[armCAD v7 D 09l28I96 08 20 55 AM C) Hlaestad Methods. Ene 37 Brnokside Road Waterbury. CT 06708 USA (203) 755-7658 Page 1 af 1 QCT-07-1556 11:21 IHLRND PACIFIC ENG P.02 • r Spakane Cvurq OCI 7 [?ctober 7, 1996 SpOKAN't coU'T" Page 2 We have wnfigured the ditch ta run toward the contn'buting basin for Pond A and . ver'i.fled that the pond 3as the adequam volume for ft 50-ywr stnrn. Plmse ie aware that we arc anticipatin,g that wh$n the Central VallcY School I3istna develogs their property, the voTtme is mot expected to increase wward the 5helley L.ake Plafi prvgerty or the subseqaent develvpment therein. D. 4ffsite D"rscharge - ba.sed upmn your comments, Offsite Basin A is aot a basia froua vur site 6ut rather a basin f~m the C. V. school ciistrict property. We bave included ditches vn bflth sides of our plat to direct the water back to Pond A, hvwever, we are not anticipating any developed water to use the'ntnaff paths provaded. Fiease review the in€°ornnna.4ion provided and apprQVe the enclv5ed myiars. All other asgeccs af your Octaber 1, 1996 letter have been added ta the plans. Should yvu have any quesuans abaut any submittal item please do not hesitate to cal1. When the plans have been stamped and signed approved plesse contact this offace far pick up. As always, your prvmpt atteatign ta this mauer wi~I be greatlY aPgreciated. Sa.n erely, In.1 d Pac' i.neering Ca , InG. . ► ~ ~ Todd R. Whippte, p. . . TRWJtw 2 enclosures cc: Landmark Buulders, Buster Heitmarl file 1, EXPsRES 9/24 ~ i 50-year S7DRM BOWSTRING ME7HOD PRQ,9ECT Shelley Lake PEAK FLOW CALCULA'fIC71V PRC?.lECT SheHey Lake dETENTiC3N BA51lV ❑ESIGN 6A51N A 8 Offsite . BASIN A 8❑fifsite +Off Basm A E]ESIGNER TRW . Tot. flrea 4 42 RcreS DATE 10I03196 Imp Area 18170 5F C= 022 Tme Inarement {min) 5 CASE 1 Time ol CQnc (rrnn} $ 60 C7vfflow {c#s} 1 505 ft Dveriand Flow Design Ysar Flow 50 Area {acres} 4 41 B391 Ct = 015 4mpervious Area (sq fit) 18770 L = 505 ft 'C' Factos 0 224837 n= 040 54-year 11o9urne Prvvided 9972 5- 464 Area ° C 0 975 7c = 8 43 min , by EquaGon 3-2 of GwdeUnes 3ime Time Inc Intens Q Qeael VoI In Vol Out 5torage 15 fit Gutter flow (min) (sec) [inlhr) (c4s) (cu ft) {cu fit} (cu ft) Z1 = 500 860 =====515 2.99 2 92 2018 =====516 ====i5t12 Z2= 35 n= 01fi 5 300 4 00 390 1568 340 1258 S= 0008 1{] 6Q[? 2 88 2 81 2178 BQO 9578 z== 15 900 220 2 15 2308 9Q0 1408 d= 0150 ft. 20 9200 175 171 2348 1240 1148 25 1560 167 163 2729 1500 1229 A R Q Tc Tc total I Qc 30 9$00 1 56 1 52 3006 1800 1206 35 2100 128 1 26 2841 2100 741 0 60 0 07 D 89 017 860 299 2 32 40 2400 1 19 1 16 2977 2400 577 45 2704 9.08 105 3029 2700 329 Qpeak for Case 1= 2 92 cf5 50 3000 0 99 0 97 3066 30(]0 66 55 3300 0 92 090 3118 3300 -182 rn 60 360D 0 87 0 85 3204 3800 -396 m ~.4 ~ CASE 2 65 3900 082 080 3259 3900 - 6 4 1 ~m 70 4200 0 80 078 3414 4260 -786 Case 2 assvmes aTirRe af Conoentration le5s than 5 mmutes so fhat the 75 4540 077 0 75 3511 4500 -989 ~ `--j peak flow = 90(4 0€3)(Imp Area) = 1 50 cfs 80 aeaa 4 75 0 73 3639 4800 -1181 m ~ 85 5100 072 fl 7D 3705 510i1 -1395 90 6400 071 069 3861 5400 -1539 So, fhe Peak flaw for the Basin is the greater af the two ffows, 95 5700 0.69 067 3954 5780 -1745 2 92 cfs 100 6000 0.67 065 4035 5000 -1965 ~ 208' DR4iNAGE PONL1 CALCIJLATIC1N8 Requi red'208' Storage Velume = Impeeucaus Area x a in 112 EzUfE 757 cu fi 50 year Vafume Provided 1972 cu ft DRYWELL REQI]fREMEN75 -10 YEF1Ft G]ESIC,N STflRP ~ M'aximum 5torage Required hy Bowstnng 1578 cu ft Ic NWmber arsd Type ofi Qrywells Requjred 4 5ingle Vrw 1 Daubl~ 11ACA40W(Api iNLaNa PAeiFIc EraGiMEERirac Triangulax Channel Analysis & Design Open Channel - Uniforrn flow RECEIR~ED V Warksheet Name: Shelley Lake aff 13 ~ 7 1996 Camment: c7ffsite Basin B, Channel VerificatiQn SPpILRN€COUNTvENGINEER Sal.ve For Depth Given Znput Data: Left Side Slape.. 2,00:1 (H:V) Ttight Side S1.rpe. 2. 00: 1. (H:V) Manning's n...... 0.025 Channel Slope . . . . O, OQ53 ft]ft Discharge........ 0.16 cfs Computed Results: Depth............ 0.27 ft Velocity 1.07 fps Flow Area........ 0.15 sf Flow Top Width... 1.10 ft Wetted Perirneter. 1.22 ft Critical DepC.h. . . 0.21 ft Critical Slcape... 0.0225 ftJft Fraude 1Vumber 0.51 (f low a.s Subcrit ical) Open Channel Flow Module, version 3.41 LcJ 1991 Haestad Methods, Inc. * 37 Eraokside Rd * Waterbur Triangular Channel Analysis & Design apen Channel - Unifarm flow Worksheet Name: 5helley Lake Off A RECEIVED ~ 7 9% Comment: Offsite Sasin A, Channel Verificatian Salve For Depth SPOK&E COUNTt~ ENGINEER Giverr Input L]ata : Left 5ide 51ope.. 2. CJ0.1 (I-d : V) Right Side 51ope. 2 . C3U : 1 (ki : V) Manning's n...... 0.025 Channel SJ.ope . . . . 0 . 0257 ft,lft ~ Dischaarge.....,.. 0.39 cfs Computed Results: nepth...,........ 0.2$ ft Velacity......... 2.44 fps Flaw Area . . . . . . . . 0.16 sf Flow Top Width... 1.13 tt wetted Perzmeter. 1.26 ft Caritical Depth... 0.30 ft Critical Slope... 0.0199 ftfft Froude Number.... 1.15 (flow is Supercritical) Dpen Channel k'low Madule, Version 3.41 (c) 1991 Haestad Methods, Inc. * 37 Braokside Rd * Waterbury, Ct 06708 Triangular Channel Analysis & Design Dpen Channel - Uniform flow worksheet Name: Shelley Lake 1"'1EVEIVED Camment : Uitch 5ections - CHECx 6FP1~ ~ 7 tw, Solve For Uept~ SPOKAW 00UWY VkWgg Givcn Input Data: Left 5ide S1Qpe.. 2. 0d:l (H:V) Right Side 51ope. 2.00:1 (H:V) Marina.ng' s n...... 0.025 Charlnel Slope. . . . 6 . a5aa ft/ ft ft-, Discharge........ 0.39 cfs Computed Results: Depth............ 0.25 ft Velocity . . . . . . . . . 3.09 fps Flow Area........ 0.13 sf Flow Top Width... 1.00 ft Wetted Perimeter. 1.12 ft Crita.cal Depth... 0.30 ft Critical Slope... 0.0199 ft{ft Froude Numher.... 1.54 (flow is Supercritical) Crgen Channel F1ow Module, Version 3.41 (c) 1591 Haestad Methods, Tnc. * 37 Braokside Rd * Waterbuxy, Ct Triangular Channel A3zalysis & Design Qpen Channel - UnifDrm flow Worksheet Naane : She].].ey Lake RECE,~~ED Comment: I7itch Sections - CHECF{ bFPAr 0 7 IM So1ve Far L7epth 5POiLANE COUtVTY ENG#NEER Given Input Data: Left Side Slope.. 2.00:1 (H:V) Right Side Slope. 2.44:1 (H.V) , Manning' s n...... 0.025 SrWaV.- channel slaPe.... a.0 3 6 7 f t1f t ~ Discharge........ 0,39 cfs Camputed Resules: Depth 0.27 ft Velocity......... 2.75 fps Flow Area . . . . . . . . 0.14 sf F1ow Top Width. . . 1.06 ft inletted Perimefier. 1.19 ft Critxcal Depth... 0.30 ft Criti.cal Slape . . . 0.0199 ft/ft Froude Nutraber 1.33 ( f 1ow is Supercritical ) ~ Open Channel Flow Madule, Versian 3.41 fc5 1991 Haestad Methods, Inc.* 37 Bxoakside Rd * Waterbury, Ct 0670 Triangular Channel Analysis & Design Open Channel - Unifarm flow warksheet Name : Shelley Lake '~~~~IVED Comment : Ditch 5ections - CHECFt OCT 7 1944 Solve For Depth Mum Ga.ven Irlput Data : Left Side Slo,pe.. 2. 00: 1 {H: V} Right Side slope. 2.00:1 (H:V) MannYng's n 0.025 Channel S14pe . . . . 0.0093 ft/f1t L• ~n•~ I]ischarge _ . _ . . . . . 0.39 cfs Camputed Results: Depth............ 0.34 ft Velocity......... 1.65 fps Flow Area........ 0.24 sf Flow Top Width 1.38 ft Wetted Pera.meter. 1.54 ft Critical I]epth.. . 0.30 ft Critical Slrape . . . 0.0199 ft/ft Froude Numbex'.... 0.70 (flow is Subcritical) Open Channel Flow Modu1e, Versian 3.41 (c) 1991 Haestad Methods, Ync. * 37 Broakside Rd * Waterbury, Ct 05708 v ~ RECEIVED i~~ ~ 7 IM SPQONE COUAiIY EIVCENEEf? OPEN-CHANNEL Hd DRAV LICS ,g of VEN TE CH4W, Ph.I]. Professor of Hydraudic Engineering Uniuersi,Ey of Illinois Engineers •ring eatechnics e 1VIcGRAW-HILL BQ{3K C4?MPANY ,ructures New York Tarvnto Landan ~-959 Concrete UESIGN aF CHANNELS FOR T3NYFOTt.M FLOW 165 ativn of of Reclamatiari and is tentatively recommended far desig❑ of erod'abie dons by channels. It shauld be noted that either methad at the gresent stage will alsa be serve vnly as a guide and will nat supplant experier~~~ and sound engi- panding neering judgment. ;rations. 7-9. T'he Maximum Pexrrlissible Velocitp. The maximum permassible :pth will velvcity, or the nonerodable velocity, is the greatest mean velocity that will not cause erosion of the channe1 bvdy. This velQCrty is very uncextain aL a free- and variable, and can be estimated ora1y with experience and judgment. width of In general, tald and well-seasnned channels will stand much higher veloci- 89.8 ft2, velacity Tnar.F, 7-3. 1V1n~IMUM PErcMIssrsLE 'V'ELoczmrEs REcQMMEavnED sr FaRTr~~ Arrn Sco$Ey Artn T~E CORREsP¢~vDz~rG ~Tr~yT-TR~.cTrv~FO~acE VAzuEs _~.~y, Cor~vE~eTEn ~Y TxE L].S. Si~RE~av oF I~.Ecz~nMA~rxQn~ * ~d to ~e (Far straight channels of small stape, after aging) , botGesm . , and the . . sexagan, Water trans- Clear water pvrting ctil- loidal szlts Material n T Vr 'ro, T'''~ ro, fps 1b/ft2 fps 1k~~'ft2 .e chan- dc3nS So Fine sand, crallaidal. .0. 020 1.50 0.027 2.50 0.075 present Sandy 1oam, noncatloida1 . . . . . . . . . . . . . . . O. 020 1.75 0.037 2 50 U 075 rm-flvw Si1t loam, noncollaidal . . . . . . . . . . . . . . . . 0.020 2.00 0.048 3.00 0.11 ia,nne1S, Alluvial silts, nancolloidal . . . . . . . . . . . . . . . 0.020 2.00 0 . 048 3.50 0.15 iannels. Qrdinary firm laam . . . . . . . . . . . . . . . . . . 0.020 2.50 0.075 3.50 U 15 Volcanic a,sh . . . . . . . . . . . . . . . . . . . . . . . . 0.020 2.50 0.075 3.50 0.15 , ra~S ~~e Stiff clay, very callvidal . . . . . . . . . 0 []25 3.75 0.26 5.00 0.46 'ing the 14.lluvial silts, colloida'l . . . . . . . . . . . . . . . 0.425 3.75 0.26 5.00 U 46 ie chaA- Shales amd• hardpans . . . . . . . . . . . . . . . . . . . . . 0.025 6.00 0.67 6.00 0.67 ❑ed. CaT1 Fine gravel . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020 2 50 0,075 5.00 0.32 oa,m~ o~c~~~k~l~sl~~h ~r~~noncodi~c lQ~i~3~ ~7(5ll a~,?i~:81■ 95r~~A I~XGai' ~'~~d~ lnv~ amd Graded silts ta cobbles when colloicial 0 030 4.40 0.43 5.50 0.80 9402•52 K49@.0 9031@10 K£I.l@_@]N WKINrkbw 'rAJ4• 1anne1S Ca}abYes and shingles. . 0.035 5.00 0.91 5 50 1. 10 .ethad of , ~~~~en- ~The FarGier and Scobey values were recoinmended itrr use in 1926 by the Specia9 FreBdom , Committee on Irrigatiom R.esearcb )f the American Svciety af Civil Eagineers. used in ~ ties than new ones, because the ald channel bed 'zs usually hetter stabi- Bureau ' 1ized, particularly vvit,h the c~epasition vf colioidal matter. When other ,y similar conditians are the satne, a deeper chann~l will canaey water ~t a higher a further mean velacity without erosion than a shailvwer Qne. This is probably : chanuel because the scouring is caused primarily- by tlne bvttoxn velocities and, id soil ar for the same mean velocity, the bottazn velacities are gr~ter in the shal- cting the - and [g]. lvwer channel, nEsIGN aF cHAraNELs ~OR UNrFORM FLVW 185 establishment, the grass will grow and the channel will be stabilized under a conditzon of low degree of retardance. The channe1 will not reach its maximum cagacity until the grass cover is fully develaped and well - established. TherefQre, it is suggested that the hydrauiic design of a grassed channel cvnsist of two stages. The first stage (A ) is to design the channel fvr stabzlity, that is, to determine the channeT dimensians under the condition of a lower de,gxee of reta.rdance. The second stage TnBLu 7-6. PERnsIssisLE VELOCITIES ~Olt CainNNELs LxrrIEn WITir GRAss* Permissible velocity*, fps ~ Caver Slvpe range, °'o Ervsivrr-resistant Easily eroded ' soils soils s I Berxnuda grass 0-5 S 6 5-I0 7 5 >1D 6 4 wina Bi~ uffalo grass, Kentucky bluegrass, 0-5 7 5 smaath broime, blue grama 5-10 fi 4 differ- >1{} 5 3 led on 'Jr0^^%A lwn in Qr-lm- spffi,~3u~~.e i~[_4~51~ 0-- ~ 5-10 4 ~ linlng ]7o nat use vn slopes steeper than 10% wand LespedQZa serioea, weeping lave 0-5 1 3.5 1 2.5 paint, grass, ischaemum (yellow blue- I7o nat use an slopes steeper ' than 5%, except foe ~ra1, a stem), kudarz, alfalfa, crabgrass side slopes in a cosnbination channel 31fJpeS, . ~r1~e~- An~tuals-used ar~ znild sl~a~ses or a~s 0-5 1 3.5 1 2.5 teraporary protectian uatil per- Use gn slopes steeper than 5~''o is not reccrru- SlOpes mauent cavers are established, mended 7asses, eammon lespedeza, Sudan grass ex aT~,' )f the REMnRKs. The values app1y to avarage, unifDrm stands of each type of cvver. i~~a. t3£ ~Use velacities exceeding 5 fps on1y wl~ere go~rd c4vers and proper mainter~ance can k~~ obtained. - pread _ * U.S. Scril Conservatiom SeTVice [41j. ining, ~t~mes (B) is tv review the design far znaxim~.m capacity, that is, to deterrnine rs by the increase in ~lepth of $a~v neeessaxy tn z~laint~,in a maximt~m capacity under the condition of a higher degree of retardance. Far instance, af ;c°n- comamon lespedeza is selected as the grass for lining, the commvn 1espedeza flow, of 1mw vegetal retardanee (green, average length 4.5 in. ) is used for the first stage in design. rI`hen., in the secand sta,ge, the commnn lespedeza ining litian of moderate vegetal retardance (green, uncuG, average length 11 in.) A of shQU1d be used. rinally, a-proper freeboard is added to the computed . , . ' Z 14 mw ~ i - sism,e MI Pn ~ 1..7 P C) lt A. Y~E )F- ~ <J {JT 1.r L'•~ DIVISION OF ENGdNE6AImG ANT] 12OAD5 • A DIVESIG71d i]F I"HE PC1$LIC WOBKS DEPA Wiliiam A. ]ahns, P.E., Coenty Engineer Dennis M. 5cott, P E.. Director ~~COVED Octvber 1, 1996 ~ ~ 7 1996 Tocld VVhipple, P. E. Spoot4E coumTX o4cf~~EF, ~ • ~ ~ IPEC t_~ "vy svaJECT: F1750 - sheliey Lake P.U.D. 5te submittai ~ p~'•~ - Gentiemen: A review of the rvad and drainage plans far this praject has been acc,vmplished. Areas of concern ta us are indicated in red an the attached list. P1ease make the correctians and resubzndt them tca this vffice in vrder that the review proeress may proeeed. Whhen the nlans are resubmitked. Dlease mark all chanLyes an the revised orint in color. We alsv nvte these items: 1. Dniy vne set of prints was rec,eiVed with t}eis subrnittal. The SRCS requires that each submittal be accompanie.d by two sets of prints 2. Per your evnversatign with Ed Parry earlier today, we understand that yvu intend tv submit a deszgn deViatican fvr the 580' radius horizantal curve betweeri stations 10+00 and 16+99 on Rotchford T3rive; this curwe is apparently out of c.ompliance with the $1 SRGS, which gavern the rvad design vn this project. The design deviatipn approval for the 350' tadius horizontat curves (]anuary 1996) clearly indicates t'hat the partions of Ratchford Driue vuTside of the 350' curWes are to be aesigned to the $1 SCRS requirements far a Collectvr Arterial on Flat Terrain. If yvu intend tv provide a superelevated curve at this lacation, as indicated in your conversation, then your justificatdon wi11 need to demonstrate that adequate tangent runvuts are provided for this curve, and for the 350' superelevated cunae to the north of fihis 1ocacivn. Yvu should also cvvrdinate this cvnfiguration with the County Traffic Engineer (Bob Brueggeman, P.E.) to ensure that the prvposed layaut meets the intent of the revisians to Engirseeer's Cvnditivn #35, impased hy the Bvard of County Cotnmissivners, which requires that the applicant implement and comply with any design recommendativns by the Cvunty Engineer fvr restricting speeds on Rvtchford Drive." Please da not resubmit the rvad and drainage plans for iFiis project until this design devsativn is resvlrred, as we will be unahle to cvnduct a review of these plans until the vutstanding design issues are resolved. 1026 W 8raadway Peue. • 5pakane, WA 99260-0170 1 (509) 456-3600 FAX. (509) 324-3178 Tl7T) {509} 324-3166 Todd W hipple, P.E. F1750 - 5Le11ey Lake P.U.D.; 5th Suhmittal Dctaber 1, 1996 Page 2 of 2 If yvu have any guestivrs about this review, please r-ont.act Fd Parry at 456-3600. Thank you. Very truly yvurs, VVilliarn A. Tvhns, P. E. Spakane Caunty Engineer TO Edwa~'d~~ PMx?, ]r.9 P°. E. .~~aM~ . ~ Plans Reuiew+ Engineer ft- 4`7 encls: Plans (1 set) ~ Comments (2 pages) Stantiard Nrtes cc: pr4ject file reViewer (cpnnments nnly) Buster Heitman~Landmark Suilders,8205 North Dinision,5pakane, WA 99208 . . ~ ' ~ ~ REVIIEW COM►vIE11TTS . SF(}KANE CDUN'I'Y 1026 HRQADWAY, SPOKANE WA 9260-0714 RECElVED PHONE (509)456-3600 FAX (509)324-3478 o c ~ ~ 7 1996 REVIEW Parrv ~ROJECT P1750 DATIE: I octo6er 96 PROTEC'T li1AME: Shelleu I,ake P. U. D. Due to the exter2l of recurring iterrrts, these cornrnents are general in nature, and re,flect a cursory review rf this submittal. Pleare ensure that the plarr.r arrd calGUlattorts confarm to the applicable startdards, and good eragineering practice Previously noted comunents, stW pending resolution: 2nd Review: GENERAL . Plans for the entire length of Rvtchford I]rive (per cr~nditians of the design deviaaivn - see County ~ngineer's letter dated 22 Jan 96) were nvt received with this submittal (Received 14 Aug 96. Foe iuture reference, please ensure fhat the P.E stamp bear-s a full signature) {The conditiorts of the Design Deviation Apprnval far terrain elassification in the Rotchford alignment require that the County Engineer approve the pfans for the entire Rotchford alignment. The °For Inforrrtation C)nly" waterrnark neads to be removed; a statemiemt that this work is to be constructed in t'he future showid be added. Drainage plans and calcs tor this section are not needed at this tirne, ihe Counfy's approval will note "alignmenf & profile only". Please enure that all efemenfs af the alignment snd profile oonform to the SCRS) [Yer our canversation of I act 96, we urtderstartd thnt you iratend to submit a a+esign deuiatic+n for the nan-confrrming (per 81 SCRS goverrrting the project) horizontrd curve between station I0+00 dnd 16 +99. The justifieation fvr this desrgn deviataon wi1l need to demonstrate tirat adequqte tangertt runauts arepravided for the superedevativn vrt ahe reverse curve.s, and shouPd be coardinated with the County Traffic Engineer to ertsure compliance to Enganeer'.r Condition #35, as revised by the BaCC] ROAD & DliA.1NAGE PLAIVS ~"treet 12: . 09-2. The temgvrary eaasement shvuld be configured as separate easements for the pu6lic {Sepaeate ~(7 easemen#s for the pub7ic raad furnaround and the private raad tumarnund were not indirated, nor v+eere eassrs~ent descriptFDns received with #his submittal) [The signed eQSements need to be returned to the County fvr ~ , recording] . REVTEW C[ININENTS Page 2 af 2 1 Octaber 96 PRO.TECT # P1750 RE4'-EEW # 5 ~ ~ CALC ATIf3NS . Offs te basins need to be a,.,counted ;,be in the design. Haw are fihe #]~,ws frvm the ~rffsite basirt svuth o~F basin Ay managed? {The plg s need caardinated wifh #he interception ditch concept stated on page D3 of the arainage Re art alculations far ditch sOr were not received with thi,s subrnittal; the GSM requires tha(ditch pro,fi be shown an t7tte pians, adsr] J~H 'WIA' . . Pre-deVelaped and post development flows fvr the basins discharging off the site need to be analyzed to determine what, if any, mitigating measures may ~e needed tv manage flvws (5ee Camrnerrt #3 above) CCalculations for the pre-devedaperl candition were nat received wath thrs submrttal] ~ ~ ~ . . TNLAND PACIF~~ ~NG~~~RING COMPANY 707 W. 71h Avenue, 5uite 200 5pvkane, Wb 99204 (509)458-6840 Fax• (509)358-6844 Tfl: '5f;br-ANU~ Go..t NT,4 rrN [~r Ngzv.s DATE: I - ~-7 °el G I.F.E. FRQJECT q3 t4-~> ArrErrTIorr: f:~uL. L,"uf+4M PROJECr NAME: Descriptian O~erox Frints ~ Capy of Letter ~ riginai Drawing ~ Cc+ntract Documents ~ 0 Vdork Authorizatian Report No. Cqpies Descraption ~ t~,vo~v t TTA-c- NO-4 e-ou o-' o2l ra . e4+f-" Fv-, i qTS PuI'poSe EF Tnfvrmation 0 Review & Comments 0 Per Your Ftequest lr] Wri[ten Apprvval ~ Signatur+e & Return Remarks -t~-k~ ~ t e •--r. R~~ ~f ~ ~ ~ +L~ . RF~' ~ . , ~ - Zitr a 7 11996 , . ~ Slgried : Arwol- _ ~ cc: n Mr+sn-rr PMs Y - 4 ~L~"'~ s _ C) 'CJ N T S 1~ C7 IC N E 'G "5~ DIVISIOPJ DF EidC1NE£RIIVG ANiJ RQAI7S ■ A d71VISION QF THE PU3LIC WaR3CS DFPAFtT4fENT Wiliiam A. johns. PS. Cvunty EnginQer T]ennss M. Stott. i'.E., DireetQr OGtoher 1, 1996 Todd Whipple, P. E. dPEC SUB1ECT: P1750 - Shelley Lake P.U.D. Sth Submittal Gen[lerraen: A reviev►+ of the rvad and drainage plans for this praject has been accomplished. Areas af cancern to us are indicated in red on the attached sist. Piease rnake the carrections and resubmit them to t.his vffice in order xhat the review prvcess may prvceed. When the nlans are resubmitted. olease mark all chanizes an the redised orint in coior. I Vde alsv nvte these items: oe l, Only ❑ne set vf prints was receiwed with this submitt,a1. The 5~'LCS reguires that each submittal be accompanied by twa sets of prints 2. Per your conversation w%th Ed Parry earlier tvday, tive understand rhat yvu intend to submit a design deaiativn far the 580' radius harizontal curve between stativns 10+00 and 16+99 on Itotchford Drive; this curve is apparently out of compiiance with the 81 SRCS, which g€rwern t.he rvad design on this project. 'I'he de,sign de►riation approval €or the 350' radius harizontal curves {January 1996} cleariy indieates that the portions of Roechfvrd I)rave csutsitie of the 350' curves are to be desFgned to fihe $1 SCRS requirements for a CoIlectDr Arterial an Flat Terrain. If yvu intend to prvvide a superelevaled curve at this 1vcation, as indicated in your conversativn, ttten yau~ justtfication will need to dernvmstrate that adequate tangent runouts ase provided for this curve, and fvr the 350' supereleaated curve to the narth vf this locatdon. Yvu shvuld alsv cvvrdinate this cvnfiguration with rhe Cvunty TraFfic Engineer (Bob Brueggeman, P.E.) to ensure t.hat the proposed layaut meets the intent of the revisivns to Engineer's Conditivn #35, imposed by the BQaxd of Cvunry Commissioners, which requires rhat the applicant irnplement and compiy with any de.sign recammendations by the County Engineer for restricting speeds vn Rotchfard Drive." P2ease dv not resubmit the road and drainage plarts for this project until this design deViation is resolVed, as we wili be unable to canduct a review of [hese plans until the vutstanding design issues are resvlvef. ~ IM W. Broaaway ,aVe. • spotane, vvA 99260-0170 • (509) 456-3600 F,ak (509) 324-3478 TDo, (509) 324-3166 1 TOdd Whipple, P.E. P1750 - Shelley Lake P.i7.D.; 5tb Submirtal Octvber l, 1396 Page 2 of 2 If you have any questions about thas review, please cvntact Ed Parry at 456-3600. `i'hank you. Very truly yours, Vdilliam A. Jcahns, P. E. Spokane Gounty Engineer p.c. Edwazd~ PMrrlf ] Jr.F P. E. P1ans ReV1eW ET3glp1eer encls: Pfams {1 set} CQmmenCS (2 pages) Standard Naces ce: groject file revtewer (cQmrnents only) 8uscer HeiunanfLandmark Builders,8205 Marrh Ilivisivn,Spvkane, WA 99208 ~ • ~OMMENTS SPOKANE COUIV`TY 17IVISI(71V pF ENCGINEERING & RC?E4U5 1026 W SRC)ADWAY, SPdKANE WA 99260-0710 PHQNE (509)456-3604 FA.X (509)324-3478 REVIEW 5 REVIEWER: Ed parrv PRaJECT PT750 mATE: 1 Dctaber 96 PRC3JECT NAME: Shellev Lace R. U. D. Due to the extent of recurring itemc, these camrnents are generad rn nature, and reflect a cursary revrew af thas subrnittal. Please ensure that the pla.n,r arrd calculataons confarm to the applicahle standards, and gvad engineerirag practice F'reWiously noted comments, sti[l pending resolution: 2nd Review; GENERAL 2. Flans for the entire iength of Rotchford Uriae (per cpnditions af the design deviation -see County Engineer's letter dated 22 Jan 95) wete not eeceived with this submitGal (Receiwed 14 Aug 96 For future reference, please ensure fhat the P.E. stamp bears a full signature) {The oondftions oi the ❑esign Deviatian Approvai for terrain elassrficatfora in the Rotchford aiignment require that the County Engineer approVe the plans tor the entire Ratchfard alignment. The "For fniormativn Onfy" walerrrark needs ia !ae removed; a staternent that this work is to be canstructed in tlhe future shnuld he added. arainage plans and calcs ior this section are not needed at this time, the Gaunty"s appraval will nate "alignmerrt & profile only". Please enure that ali elements of the alignment and prcafile confcsrrn to ihe 5CR5) (Pel' our Co12versattan of 1 OCI 96, we understarzd that you intend to submft a design deviataon fvr the non-conforming (per $1 SCRS goverriang the project) horizontal curve between station 10+00 arui 16+99. Thejusticationfor thas design deviatipn will raeed to a'emarIStrcutte that adequate taragent runouts are provided far the superelevation on the reverse curves, and should be coordinated with the County Traffic Engineer to ensure cornpliance tQ Engiraeer's Cortcditian #35, a.s revised by the BaCCI R()AD & DRAINAGE FLANS 5heet 12: 2. The tetnp~rary easement shou1d be Gonfigurel as separate easements far the public (Separate easements far the pubfic road #wrnaround and the private raad turnaround were no# Andicated, nar were easement descriptians received with this submittal) [T'he signed easemeruts need to be returned ta the C'ounty for recordingJ ~ . k REVTEW C[DMVIElVTS Page 2of 2 1 [?ctaber ]6 PR[],IEC'Y' # P1750 [tEVIEW # 5 CALCULATIONS 3. Offsite basins need to be accounted for in the design. Hovv are the f1vws frarn the ofFsit.e basin svuth vf ba5in A managed? {The plans need to be caardinated rrvith the interceptinn dftch ooncept stated ❑n page D3 ❑6 the L rainage Report} jCa[culations far ditch sizing were not receaved with thts suahmittad; the GSM requrres tha.t ditch profiles be shown on the planr, also] 4. Pre-developed and past develvpment tlvws far the basins discharging off the site need tv be analyzed trr determine what, if any, mitigating measures rtiay be needed to manage flaws (See Commsnt #3 abcsve} jCadculations for the pre-developed condition were not received with thr's suIamittal] ~ ~ ~ONUdENTS SPOKANE COUNTY I]IVISION ❑F 13NGIlNEERING & ROADS 1026 W BRUADWAY, SPVKANE WA 99260-0710 PHOAiE {509}456-3600 FAX {509)324-3478 REVIEW 4 REVIEWER: Ed Pam PRC3JECT P1750 I)ATE: 19 Sentember 96 PR(3TECT NAVIE: 5hellev Lake F.t].D. Due to the etent of recurrirtg itenu, these cornrnents are gerneral in narure, arrd reflect a cursary revaev of this srcbrnitra2. Pdease ensure that thepkns and calculaarnrrs confvrm to the applicable starulardr, arrrl good engirteerirtg practrce Freviously nated cvmments, still pending resolutian; 2nd R.evaew: GENE1tAL 1. Piaris wiil neced to be signed by the Aeveloper priar to approval by thie County(Stall needed) Plars far the entire length ef Rotcfiford Drive (per conditivns vf ths design deviation r see Cvunty ngineer's tetter dated 22 ]an 96) were nvt received with this submittal (Received 1¢ Aug 96. For future reference, plea.re ensure that the P.E. starnp bears a frdl srgnature) {The coruditiorrs of the I)esign Deviation Approvad far terrain cIu,rsification in the 1Ratchford aligrtrr,nent require thnt the Courtty Engineer approve the p1.an,r for the entire Rotch, ford aldgn,ment. n e nFor Infionnataan Ondy" waterrnark needs to be retnoved, a staterrertt that this work is to be co'rstructed in the future should be added. Draa,nage p[ans and calcsfor this sectian are ncrt needed at this time; the Coun,ty's apprnval will nte;;~'ia€ignment dr profile ondy PI e enure t~at el nts of tFae aIig nt and ra~'le confv ; t i e SCIiS~ . V= 4~~~ ~ :intersection. Engineer's Candition #4e~, ir e 4th Avenue intersection at Cv e igned as a 4-way How d~s this rvad a~ ment fulfill this ~candition? Please 1 sc:uss. (Pft-am see tr~ched rrtemw) (APProvad fro~n la ' ~~.~r-i~-eir~u~atir~ra)-~.. _ RO~ & D~~AGE PL"~ ~h~t 2 Road sectivns need to indicate existing RIW, praposed Iil'W, f1A#L1Pe aCqUl3ttlClri area, and existing paving, as apprapriate (Sections for Conkltrt and 4th Ave do not indicate the extent of existfng pavrng. Ai.r ts needecl so rhat the amourtt o,f wldening and irtcamirtg taper iength cart he "curettely evaluated) (Mere the sidewulk rneanders nutsicie af the RIW, the rappropriate eusements need to be prvvfded, and ir,rdieated ora the maa sectians arid roqd pl,arrs; vvhere the easemeent eracroaches ort aLat, as opposed to a Tract, th ecrsp eds to be~wr~ vr~ he t Flr.crt, a~.'ro) ~ ~ ~ ~ SW X&ae, SPC3KANE COl1NTY ENGINEERS STOPPING 51GHT []I5YANCE CALCIJLATIONS Date 30-Sep-96 CREST VERTICAL CURVE ReVtew # 1 Rev'tewer. Parry Project # P1750 Prnject name 5helley Lake P.U.Q. 7errain ' Flat (General land slope 096 to 8%) x FCalling (General land siope >8% to 15%) r Masrntains (General land slQpe >1596) RC7Rf7 7YP E UrbaNSu6urban Semi-ruraVFtural Pubiic Public ' Local Avicess Lncal A,ccess Arterial ADT<100 x Cvllector 1 07>NDTa400 SecQndary Major Caunty Artertal ADTd40❑ Rrnrate 400<ADT=750 ' Extension to S ar fewer lats AaT>750 Tract ")C" Prrvate EAension to 8 or fewer lots Tract 'W' Road name Rotchford Drive PVI station 28+00 Length af vertical curve proNnded 30 f~ NT ❑esign Speed 30 Mm 5tappmg 5ight [3istance 200 Entaring slvpe (G1, 96), 5 50 Exiting 5[ape {G2, °lo} -2 t19 G2-G1 A= 751 Check S>L L# =25-(13291A) L1 = 223 036 Requrred mmimum curve length 226A35 Check S<L Curve prrnvided is Adequate L2 = A{5"2}11 329 L2 = 226 Q35 vcun2 ,rw,kOa , SP4K,ANE CC][JNTY ENGlNEERS STUPPfNG SiGHT D15TANCE CALCUT AT§ON5 Date 3t1-Sep-96 CREST VERTICAL GURVE Reaiew # 1 RevieweA• Parry Rrvjeet P1750 Project name. SheEley Lake P.U.D. Terrain x Flat (General land alope 096 to ' Rolling {General land slape >8% ta 15%} f Maunfains (General land slnpe >15%) R17A❑ 1rYF'E Llr6anlSuhurban Semi-rurallRtzral Pubhc PuhSc ' tocal Rocess Lacal Access Rrtenal Af_]T<100 x Collector 100'AQTa40] 5econdary Major Caunty Artenal AaTC4C]C} Pnvate 400<ADT<750 ' Exterrsion tcs 8 or tewer lo#s AOT'75[} Tract "x7 Frivate Extension ta 8 ar fewer Cnts Tract "x" Raad name: Rotchford Onue F'VI stativn 23+06 Length vf Vertical curve provided_ 330 pesign Speed, 40 Min, Stopping 5ight Diatance 275 Entenng slape (Gl, 46) 5 50 Esaiing Slape (G2, -2 01 G2-G1 J= A= 751 Check S>L: L1=25-{1329fA} L1 = 373036 Required minimum aurve length 427.347 Check S<L Curve prorftded [s T0o shvrt L2 - A(S•-2)r1329 C2 W 427 347 VcurV2. vnug93 ~im INLAhlD PACIFIC ENGINEERING, INC. Septernber 24, 1996 W.O. No. 93143 Spokane Courity Public Works W. 1026 Braadway Spvkane, WA 99260 Attn: Paul Linneman, E.LT., Ed Parry, F.E. RE'LiEIVED Re: Shelley Lake - PE-1750-94 SEP ~ ~ 520 4thlFinal Submittal SP+~~ eWAl$EM I)ear Pau11Ed: This letter is to clarify that although there is no vffsite topo shavvn vn the basin map along 4th Avenu~ ~o the vvest af the plat the vffsite shaded area basin limits were defined using avisual inspectian and assessars tnaps for fencefvwnership lines. Additionally, T can attest that during the site inspection the limAts represented were determined ta be approximately correc¢ and are appropriate for the anaiysis pravided. Should you have any questivrs regarding the area added to Basin A, please do not hesitate to call. Sincerely, w Ilnd Paci~i gineering Cv., Inc. odd R. W ipple, F. E. 25462 TRVV'Itw enclosures ~ MkS 9,/24J ~ cc: Landmark Builders, Buster Heitman file 707 West 7ih • Suite 206 2020 Lakewood Deive • 5uite 205 Spokane, WA 49204 Caeur d'A1ene, ID $3$14 • 509-458-5840 • FR3C• 509-458-5844 208-765-7784 • FAx• 208-769-7277 - ~ INLAND PACIFIiC ENGINEERING, INC. Sepgember 26, 1996 W.O. No. 93143 ~ECEIVED Spokane Caunty Public Works s~~ ~ 6 ON f . ~ ~ W. 1(}26 Broadway ~ ~pQk~ne, WA 99~60 51~~E cOunrrr E~uGI~uEER - cr~ F Attn: Paul Linrteman, E. I. T. , Ed Parry, P.E. ~ Re: Sheiley Lake - PE-1750-94 - 4th]Fimal Submfttal 17ear PaullEd: Enclosed please find two sets af original mylars, one set of prints and severa1 attachanents to this letter. These plans and attachments provide responses and araswers to all yvur comments fram yQUr correspondence dated September 20, 1996, regarding the 4th subrnittal of these plans. Speci~'ically included wiChin this submittal are the fallcawing: 1. Frojeet mylars bearing the prQject sparasors signature. 2. Twa letters, ane vutlinirag that the portion af Rfltchford DriVe fram Sta 10+00 to 22 + 78.09 is in cvnfortnance either with the current design deviation or the 1995 SCRS. 3, f A, letter stating hQw the cantributing affsite basin to basin A and pond A was determined, and that it has been field uerified. 4, Supplemental drainage calculatians Verifying that the total volume wifihin Pand A, will cantain the 50-year storm for both Basin A and the contributing affsite portion. 5. YSupplemental pipe calculatians for the pipe run frQm CB No. 1 to Pond J. These include Storm Cad ealculations and plots indicating the actual water surface elevation within the piped system and Haesteds Flow master calculations to verify sub vr super-critical flaw situations. Flease nate that one pipe becarnes super critical due to pipe slope and low flaws, how+ever there is no sizeab1e hydraulic jump aC the downstream catch basin as shown in fihe profile and storm cad calculations provided. 707 YVest 7ih • Suire 200 2020 Lakewood Drive • 5uite 205 Wkane, WA 99204 Coetar d'Alene, Ip 83$14 • 509-458-6840 - FR?f 509-458-6844 208-765-7784 • FAX 298-769-7237 Spokane Cvunry Septernher 26, 1996 Page 2 6- /upplernental drainage calculatiorls far the pipe tv Temp Fond A. As with item no. 5 above this pipe is super critical and storm cad calculatians with HGL and EGL elevations are praVided to clarify impacts, of which there are none. F'lease review the informativn provided and approrre [he enclosed mylars. A11 other aspects af your September 20, 1996 1etter haae been added ta the plans. 5hould you have any questions about any submittal item please do ncrt hesitate to call. When the plans have been stamped and signed approved please contact this office fQr pick up. As always, yvur prornpt attention tv thFS xnatter wa11 be greaxly appreciated. Sincerely, In1a d Pacifi gineering C o. , Inc, TO[id R. Whipple, P. E. TRWitw enclQsures cc: Landmark Bui1ders, Buster Heitman fi1e . -~~HA ~ i4ovptw SJLL id 4 pO ~ rcr~~ ic e,~ J ~ ~ ~ ~OWVR CPF~' EM~i~d DCS~i ~EEOSNU b1GZf ORiFUC~ cpa ~uJ10 4 i~~ SfumFa6cHfo6iu 1!WLUAFbl~ dlr 9PL~Gtl ~•4 e.~q °uN~f 6 CI~~E e~~es~nw y~n91Mr vqdiMt.q Rpeaw S}~~PYA. Pm~i i~e.a • Fl.~nI6tl~WOSmefy u~sn~~wwr~~ewps15M5~ ~ Uc~scw+ c~~i ]nsP ~+w EnisOw`wR~ 81 XO Po 94 tl rii ]~9 ~ i11 1L 1eTIU 1¢~ ',ffi ~0 M Tl 1~ 25 ~ 1 . . . w '.tl 1'S 'A IO 'F9 ~9 m n m ib Yl in ~ ~ ~sAnn~ Bni~a. • . 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W ~ Eaw~n4ut.y~ MS~ A Ls ~ S8 ~P T3 p 2f5 9J A ~ bs htlx w m ]ll YS 1W ~ ill '.~1 :qA ']I 'LA • ~ 1]1 '.Tl ZQ Fw~a Imx ~r~~ n1t ~ ~we~~a+ epyewfm~e4r 9w F~[Yr. u~1 IsynY~isvw~ i~ ~ 11n p~gNp, ~ lv~seape~4WW ~v~u~ L3 ct6 W cbrtawq~iqta~•p f tiwMry~ +F [~~e.ar+u xes ~ AsNU..r~~wca~a•r.,rrcsvw~m. aa aii• r ys u•a qan.ssaw u. usrsee CstS6 cwpu~s~la Jwn~ d4~n5 Ww~~~wniawuearryy~eucaa~aw 4]. « .k31 Ll ,g Itl~ m~K ~ u. Rif} u sa w ~F'~'~~'si,~a~~~ea~a~a+m~ 4w ~QUEST FOR DESI+GN DEVIATION $30.00 DATE DECEMBER 21. 1975 ROAD NAME ROTCHFQRI) DRIL9E CRPIRl1] # NIA NAME ❑lE PLAT SHELI.E[ T.l~E _ Plat # PE-I7,50-94 AI7DRES5 OF BLUG ATA1VE QF BLDG PR+L77Ed.`E' BLDG# B9 S- 24 T 25N R 44E, FEDERAJS'TATE FRDJECT' # PRAJEG7' LTMTIS SODTH mF 4TH AVENUE EXISTINC Cf3NDMONS: 9PROPQSED MORClV,EIl+F-NTS: RC]AD ►dVID'T,H 40' F. C. TU F. C R(7AT} Si3`RFACE ACP GLIB ~ AV4'i DAILY TR.AFFIC 400+ADT {I)H0 (40-150±) " Gtirreat Traffic Count Design Year Traffc Count PRDJECI' DlFSCRTPTIQN PREI.IMINARY DESIGH OF FOTCHFURI] I1RIVEICONK'LIN RaAD FROM 4TH A9ENilE BICIAiITY S[3UTH 'L'D TIE INTi] EKI5TI3dG R.f}TCHFf7RD ZIRIVE AT PLAT BOIIHDARY. $RQFOSED DESIGN I]EVIA`1I0N `f{D REDII~E THE MINIlKUM DEilGN ~vES @ STA 1+6+46 . 02 T0 22+81. 98 AND 5TA 34+9$ .53 TO 33f18. 07 FROM 410* R,AI)Il7S xU 350"RA]IIUS, CURV'ES WILL BE iN FIIF.L SiTPER WITH EMAX @0.041 IFT JC75TdFICA`I'TQIV: SEE ATTACHED LETTER SUBMZTTEU BY 7'0DD WHTPPLE, INLAND PACIFIC ENGINMYAIG, INC. DATE DECF'M'BER 21„ 1995 AI?DRES5 707 WEST 7TH AVLNQE, SIIITE 200. SPORANE, WA Z',[P CODE 93204 PHONE # (509) 458-6840 (FAg) 45$-6844 #**~'~~s ADMIIVISTRATIVE VAHL4NCE FEE E7F 130.00 PAID TO SPDKANE CU[1I►i'1'Y s**~~+* 1026 W SROADWAY, SPOKANE WA 9nffl-0170 P OAiE (509)45 600 FAX (549)32r4-3478 -REQUEsT wi[L NOr ~E RM o CASNlCHECK # RECEIVEO BY DATE ~r ■ _ ~ ~ ~I DESTGN DEVIATIQN STAFF RECUIVIMENDATLDNS . . <:%s.t f7 t Tr orYs (b"-r6PA1 E[7 /nl ~77 ApPrrnred Approved wlconditians Not Appxoved Project Manager ~ Date ~ ~ . ~ - , A.ppr+oveci Appmved wlcrsnditions ot Appraved Planni.ng & 'I'raff'ic Engineer Date VProved Appr d w/eonditions Not Appraved 3 [ ) ~ ) I~~~~~ ~ ~ - Project Management Engineer Date tpPaoved Apgrorree3 wtconditions Nvi Approved . , Operacions Lngineer flate POKANE GOl'JNT'Y ENGIlYEER'S 'ETERMII+FATION: PproverY wlna condinans Approved as recommended above Not Apgroved Spokane County jvgineer + Date r `I$11 - ShQlley I+31ie P.U.D. , Qtchford Drive Design Deviation Request - - ]anuaty 22, 1996 Page 2 of 2 CONDITZQNa f]F A,PPROVATs A. 350' radius curve hetween stations 16+98 to 22+$2: 1. The design speed shall be not less than 30 mph, and shall include fuli runouts far the supereleuated sectian, per AASHT[]; ~ ~ 2. Coefficients of side friction sha11 be determined from AASBTO Figure III-7; and 3. The design shvuid include signs warning of a reduced running speed, or a reduced ~ speed limit, thraugh this section. Types and Zcacaitons ❑f signs shall be coordinated with the ~ Cvunty Traffic Engineer. , B. Curve betwe.en stations 34+98 tsa 39+87: . 1. The desigri speed sha11 be nvt less rhan 30 mph; and shall include full ,runvuts for the superelevated section, per AASHTQ; 2. Creffcients of side friction shall be deterrnined from AASHTO Figure III-7; 3. The design shou2d include sagns warning of a reduced runnning speed, or a reduced speed limit, throUgh th15 5eCC1(]t7. Types and Iocativns of signs shall be cvordinated with the Counry T'raf~ic Engineer: and 4. Adequate sight distance easements are tv be secured for the intersection at 4th AaenuelRotchfvrd Drive. C. AdditiQnal Cvn€iitians of Design Deviaton Request Apprvvai: 1. Plaris for tI7e entire Rvtchford Drive alignment shatl be submitted to the County Engineer fvr approval; construction in the fiature pubIic right-of way fvr Rotehfvrd Drive shall nvt be allowed untii the constructivn plans have been apprvved arrd a permit issued by the County Engineer's Office. 2. An Ervsion Gcrntrvl Plan {per (he P1at Cnnditivns of Apprvval} is requirei 3. As ~starifc-a.don, the remainder of the Rvtchfvrd ❑rave alignment, vutside of the 1ocgffaras:d"fi-two hvrizon ~~urves nvted in items t~ and B, shall be designed to meet the S~9GRS design parameters ~'ir a Collector Arterial in flat terrain. ~ Nt4W i ~ DATE: ~ TO: INLANO PACIFIC EHGENEER[NG CQ. CoMpANv: 707 Wes# ?th Ave., Suite 200 - - - - - Spokane, WA 99204 ~ FAx Nt1MBER: - - Telephane = (509) 458-5840 FAX - (509) 458-6844 i EROM: s- ~ Nl1MBER OF pAGES: ,1p8 ~NUMBER INCL. COVER PACE ~ ryC11'ES: 7Z-7- ~ ~ d ~ 1 ! E-D CCD il l 1- FAk TRANSMC5SIC7N S . TRAN5NAT34N °T I TLE INSURANCE CC3MP = r~ORTH z 2 0 ~co~ ~ aPOKANE, WA.5HING'PdN 99212 AUG 2g 1996 Prepared far: INLAND PACIFIC ENGINEERING j• P. E. ATTN: MIKE MOQRE. W. 707 7 TH Charge . N/A Order NQ. C:D1982688 I, QT B 0 0 F R E P DR T REPLFTED C]WNER : CENTRAL VALLEY SCHO4L DTSTRIGT NO. 355 and SHELLEY LAKE DEVELOPNSENTf a Washingtan Partnership. A17DkESS OF PROPERTY LTNDER SEARCH : NaNE. C7WN'ER: CENTRAL VALLEY SCHC7DL DISTRTCT IrTD. 356 and SHELLEY LAKE DEVEL4PMEPT'€", a Wasriington Partnership, DESCRIFTION: That portian of the South h.alf of the Southeast quarter of the Nflxthwest cauarter of SeGtion 24, Township 25 NQrth, Range 44 East, W.M., rnare particularly deseribed as fallows: COMMENCING at the Northwest carner of the South ha1f ❑f the Sgutheast quarter of the Northwest quarter of said Section 24: thence 5outh 89012157" East, alvng the North 7.ine of said Sauth half of the Southeast quarter of the Narthwest quarter, a distance of 593.94 feet, to the beginning of a non-tangent curve, cvncave to the SQUtheast and Yaaving a radius of 745.40 ~~et; 4from which point a radial li.ne bears South 6001014811 East, f: thence Sautherly along said curve through a central angTe of 0104211211 an arc distance of 22.15 feet; thence South 2800710011 West, a distance of 313.08 feet to the begi.nning of a curve concave ta the SQUtheast and having a radias of 380.00 feet; thence _ Southerly along said curve thraugh a central angle of 0003511111 an arc distance of 3.89 feet to th.e True Poant of Beginning fvr this legal descriptian; thenee continuing Southerly along said curre hazring a radius of 380.00 feet through a central angle of 241125159" an arc distance of 152. AS feet; thence SauGh 70009' 24" East, a distance of 100.94 feet: thenCe North 28007'00'r East, a di5tance of 142.30 feet; thenee NortYY 6105310011 West, a disGance of 135.49 feet to the True paint of Seginning; 5ituate in thie County of Spokarie, State of Washington. Page 1 of 2 brder No. CD1982688 CaNTRACT PC]FtCHASER: NC7NE. MQRTGAGES, DEED5 QF TRUST AND LABOR ~ MATERIALMENS LIENS: NDNE. ` - TAXES AND ASSESSMEN'TS HAUE ATC7T BEEA3 SEARCHED. , dATED: August 23. 1996 at 8:00 a.m. NC? EXAMINA'PYC}U QF THE TITLE HM B~EN MADE ANI] OUR SEARCH inTAS LIMITEI7 'I`C} THE NlATTERS SHC3WN A$C}VE. LIABILITY FS LIMITELI TO 'I'HE ANIOUNT PPaIL} TI~EREFOR. TRANSNATION 'I`ITLE IN M COMPP.NY ~ BY Fvr eervice on this arder ca [509] 922-2222 4FAXl 926-1519 Connie Dodge. Title officer sc Page 2 of 2 August 26, 1996 LEGAL DESCRZP'I'ION FOR 'FEMPaRARY PUBLIC RdAD TCFRNAROL]NFJ EASEMEN'I' That partion of the South Half of the Southeast Quarter of the Northwest Quarter of Section 24, T.25 N., R.44 E., W.M., Spokane County, State of Washingtan mare particularly described as follows; Cornmenca.ng at the Northwest Carrcer of the South HaTf of the Southeast Quarter of the Northwest Quarter of said Sectian 24; thence S•89012' 57'EE. , aZong the North line of said South haTf of the Southeast Quarter of the Nvrthwest Quarter a distance of 593.94 feet, to the beginning of a non-tangent curve, concave to the Southeast and having a rada.us of 745.00 feet {from which paxnt a radial line bears S. 50° 10' 48T° E.,}; thence SoutherZy along said curve through a central angle of 01042,1211 an arc distaraee ❑f 22.15 feet, thence S.28 ° 07' 00"W a distance of 313.08 feet ta the beginning of acurve cancave to the Sautheast and having a radius of 380.00 feet; thence Sautherly along said curve througka a central angle of 041135'11" an arc distance of 3.89 feet to The True Point of Seginning f❑r this legal descri.ption, thence cantinuing Southerly ,along said curve having a radius of 380.00 feeG thrQugh a central angle of 24025'59" an arc distance of 162.05 feet; tMence 5.70009124"E,; a distance of 100.90 feet; thence N.28007140"E., a distance of 142.30 feet; thence N_ G1°53' 00"W. , ddistanCe of 135.49 feet ta The True Point of Beginning. ~a i~1491 • ~ L LA'M ECPiRES 12 08 August 26, 1996 F.+FsC;AL DESCRIPTIC]N FOR TEMPORARY PRIVA'I'E RvAD TURNAROL.TND AND IJIZAINAGE EASLMENT That Partion of the South Ha1.f of the Southeast Quarter of the Northwest Quarter of Section 24, T. 25 N., R.44 E., W.M., Spakane County, State of Washsngtvn more particularly described as fall,ows; Comxrzeneing at the Nvrthwest Cvrner of the South Ha1f of the Southeast Quarter ❑f the Northwest ¢uarter of saicl Sectian 24; thence 5.89012157"E., along the North line of said South half of the 5outheast Quarter of the Northwest 4uarter a distance of 593.94 feet, to the beginning of a non-tangent curve, concave to the Southeast and having a radius of 745.00 feet (from which pQint a radial line bears 5.50010'48"E.,); thence Sautherly alang sai,d curve through acentral angle ❑f 01042'12° an arc distance of 22.15 feet; thence 5. 2 8°07`(34 "W a distance of 313 . 0 8 f eet to the beginni,ng of a curve eoncave t❑ the Sautheast and having a radius of 380.00 feet; thence Sautherly alang said curve through a central angle of 00°35' 1111 an arc distance of 3.89 feet; thence 5.61053100"E., a distance of 135.49 ieet t❑ the True Point of Beginning of thzs legal descriptian; thence continuing 5.61053'00"E,, a distance ❑f 184.49 feet; thenGe S. 28°49` 39"W. ,a distance of 89.89 feet; thence N. 86°1"7' 24"W. , a distance of 91.72 feet; thence N.70009' 24"W. , a distance of 100.90 feet; thence N.2$007' OfJ"E. , adistanGe of 142.30 feet to The True Paint of Beginning. C'~ ~lo • 18~,~ ~ Q ■ Gl~~~ LAO EXPIaEs 12 08