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28277 PE-1751 MIDILOME 1995, 10-01 Stormwater Drainage Report . . ~ OFFIcEAL PusLtc DocuMENT ' SPOKANE CDkJN7Y ENG4NEERSC]fFlC~ ~ ~~~~~INAL ~ROJECT # . SUBMITTAL ~ ~ STO~A.T.ER I]~I~VAGE R,EPC.}RT RE7URN TO CdUNTY ENGINEER MMILO1VTE EAST 1 ST ADDiT.~ON ~ IVED Octaber 1, 1995 ~ E C 12 1995 , SP[]ILRNE COL1hiT1' ENG1iVEER ~ ' - PrepaYed by: S1mp5f}ri EI1gineeT5, 711C. ' ' . North 909 Argoivae Road FICIAL PUsLEc DOCUMENr ~ ~~x CouN~r ~~tGI . , Spakane, Washin~on 99212 1 CEI ~ ~ ~ ~~~T SU~Mi"~TTA~~ 1 ' - RETY1~N T~ ~N'GiI~~ER 'I'ABLE OF CONTErTTS , q FP 2 ~ ~99 Sd],~.11IZ1aP'y SPQKAI~E C~l1NTY ~~iGINEER . Stonnwater Drainage ,Calciilations far Midilome Sth Additian: Fasisas-A through R. - IH. 3211d Avenue curb ade calculativii she ~ et , 0~~~ ~ IV. Attac}~nients: _ . ~ i S.C,S. sails map, and soi] descriptioii WAs ~r . - ~ 78 - r10-VAt V." ~ ~icP aATE r Urai , ~ 5 ~ r Stormvvater Drainage Report: Midilame East I st Addician S UMM.ARY This prajeGt is located south of 332nd Avenue and east ~f Pines Road The plat proposes 60 residential lois tv[aling apprnximately 23 acres. The development is divided into eighteen (1$) basins; A through R See Drainage Nlap for Midilome East 1 st Addition Each basin is composed of twv subaceas; 1} grass lawns and srwales, and 2} impervious roofs, dtiweways, annd asphalt paved streets. Stormwater flows overlarid across roafs, grass 1awns, and driveways a.nd into grass swales behind the street curbs Stormwater fram asphalt streets flows alang the curb gutters and inta the gtass swates through driveway curb cuts and Curb apenings Iocated at law points in the curb profile. As, specified in the "Guidelines for Stormwater Management", page 5-4, where a sioping swale is less than 100 feet long, aIld 5lopeS 1°Io Dt le55, the swale rnay be considered flat. Driveways along the road vvill obstruct the swales, creating a series of rndividual swales that are less than 100 feet lang and less than 1 0%, and 5 inches ~~ep betVVeeT] tI'1E CIrIV£Way5. TIleFefQI'e, each swale wall be considered as flat Storrrawater wili fill each swale to a6 inch depth and then overflow across each driveway until the water reaches the final swaie and drywell(s). The grass swales were calculated ta hold the first 112" af rainfall runafFover the asphalt street areas. Figure 2, gage 6-3, of the "GuidetEnes for Starmwater Management", by Spokane County Engineers, was used for rairifa11 intensity and duration 4ccurring at a 10-year storm frequertcy. Foz basins H and 0, a 50-year stornn frequency was used because af offsite areas. The Ratianal and Bowstfing Methods wece used to calculate the peak stoAwater runoff for each basin, and the type and number of drywelis needed for each basin based on the storage capacity 4f the swale in accordance wittt "Soi1 Sun+ey, Spokane County, Washington", 1968, ihe soil at the site is categorized as. GmB, Garrison wery gravelly laam, sinrt,iiar to Garrison graVelly laam, except chat the surFace layer is very gravelly. 'I'rcis #ype of soil is cansidered acceptable for drywell installation per Sectian 4-4, ] af"Guidelines for Stormwater Management". ~ . _r__,._._,.__,_..- _,.._...a...4_]~..:.-..y.~3! ~ Y ~ 4r. _ _~_C1_~ ~.Y_~ ~ ~.l.Y ..r., - • VY .2 5 3 __~~H.t_NAG►~_~~P~~.C,u ~P~~[.~c~~~ _ V`4~_---_. , _ . ~ PP i _ __"r'~ N_ _ . ~ . _ . _ . . - - . _ ~ . - - - F AN T:` _ P•_ _ _ - - - . ___-__~-._..4__._--~--~1_~DE}~._ti~_~~ ~,~~-~-'-•-'~~Z- - ~1~~~.~.~~ p~~- - - - _ _ . _ ~ _ _ o $ g --F -r. - ~~z --A,e;,r~z.~- - • - - _ _ _ ~ ~ ~ C1 ~Y'~'C _ .u___~..... _ 2 - . • - . _ . . ~ p~~~~~--~ ~---~~!'`~~.5----~ - - _~.~-'~?a '~_C• - - - . _ . _ _~.P~o o F_~_,_r_ _.~t~►_~ {7_Q • ~VnuS~ 'Z-T,_~e$._~;_:~tw_~_c? r-F- _ _ 6 15 _ . `1`~}__~ ~D$~ 5"ko_Y,_Ca~~.,~__~ ~ . ~_'_`j A13 C~ - k,) $D'A s~kriv,~ W A L ~.S • e ~ ~ ~ ~ ~ •3_ ~ ~ _ _ M_____ _ F . . E~o, l2 ~3~ ~A S .S c~+~CULF','~ 4i7h1~ '~'.~r.'1 - _.,v.____..F_._ _ _ _ _ _ _ . . _ - - - • _ . • - • - • - - - - - - • _ - ° _ 1Q-- ~ vt 5 21rn e- r,`t' • - - _ 1 G • • • - _ - - _ _ _ . • • -y_•_•••---_. . - _ li -•--y_-•. _ - - _ - _ - • _ - - • , ~ ~ ~ _ _ r-. ' "Cay, oi `~priv e w a.~~ ~00, 7u~1l . . ~ . - a - A • ~ , . . ~i . L _ o . . . ~ '=w-~~ - ~ _ . . . , ~_-~~rTl~• _ , _ . . :r . _ ~ . _ ~ I~~,=~~. ~E. • I . . • o' ~i~ ~ '`~'~R~ T~'°'` ~ ~ ----~-v.03~~t: _ - C~.r6- - ~ - - - - - - - _ - - - - ` r\trta, 0~. $Wwl- ~a.~Z GJ ~~i 1rO . ~ ~J I . ~P.~Jf _ ' - • ~ • _ " -~.-.~s.._~.~. _1 -~.__~_"__.._......-tia.~..~ _ " _ ~s00' ~ ~ A r [ ~1 , Y __~___p.___ (~Q-• $ ~ ~ O, ~_~1 ~ ~ ~ ~r . .~G'__ ~ _ 1 , r~ ~ ,~j.•• - - ~._.,~,a______~~ .._....~.s. _ _ . . • • . _ - - - • - _ - ~ V4 , ~ r~, 2 _ a~~,- ~ l~ i, _ .~.25 --f•--~ ~ -I _ ^_._M_L~~ . 5 ~ ~ _ t F__~..__ F._~ ~..____-...._...___~-___~-,~'_.~_e -----_I i`." ' _ " _ - 2 t7o'J° pp s ~ ' ~ ` - ` + # . ~ ~ - - - • . - .`-C'd L ..~r.~,.,•,.ni,y;~ ~ - -D~~~~~~ ~ • 6 . . . _ _ _ . • - . . c~q - - - ~ Y Z72-- sw Q\e$QiioyA _.-..~.r.~._.~ _ ! Co+n~. Y 5,ti~ e W al'~~- - _~_.r.______ ' 51~5 ~.Y.,._~.._ __,r_ -----u---~,~. .m.d._.___~_.-- : _ _ 1 I -_f~`-• ` _.__F___..._.._...F_._---- ~ _..vT--~-W At _ - "r p 2.Z5 2~'L5 - - _ ~?2~m. ~ i~ _~,~,_...___~-:r~► - 1z~~4~~~~?~z~~~~k~~a.5~[~`~..~~i~(Q,~'~~~,,,~~`~ - . . . `,5G 0 . X2- frt " Nv. l2~SS CAL CL1Lhj 4vtld tc~+~ 57 DF, A~F~~ 4'l T . . - - 3 - - - - 3~~ ~ ~ -L ~5iB fT•' 11O1 fl,3 (tad}~I.~~ P~,3 _ - - _ ~ bpoTt.li- - - - - - . _ , . L ~ ill o a)_(2-, lz~~.~~~ - - ~ - - - - - - - - z►2- - 2.13 Z13 ~Lav°).-(Z,4z ~ - ' ~ 'LQ. - zi3 - - - - - . . - - ~.1~0_'_~{w-Z-~--~ 51ZDJI~ ___-z13 0 5') 4z.L-L fl?} - - - - - - - - - . _ ~ _ _ . _ _ , _ . ~ ~Z • Fi. '3 7_ 3 a;l-o FT~ Iz°► r~T" - . - . . _ . . . . Zl~ 3 - - - - - ~ - ~ - - 43~ ~F1-3 431 ~ 43 v 1'31 • (161) 0~} ~ 13~`$ ~T•~ 5l F`~-~ ~~Y`}{l•`~S F-~~J ~ l~tC~ ~-~3 Cl % (-6') LID fl3 - • ~v - . - ~3 ~'C r~~~ ~ ~ ~T ~ - - - - - ~ ~ RAT T ❑NRL. FORMUi~A HYDF;C]LC1GY I]ATE = 7/Zf/95 DF-SxGIVEF. = b: WMCIIL1LKIN BASTN 'PA" PROJEGT NAME = hl l DZ I,..OIIE EAS"f 1 ST AiJI~ ITI aN L7E5CFti 1PT IORV = 5TxRl`1WATEFi UhAI RIAGE SLlBr'1- REA 1 = .97 raGRES S13BAk=iEA 1 iiUNCkFF CC1EF FICIEfVT = .9 SUBAF:Er; s = 1.76 ALRES SE..iBA~ EA RiJNC1FF CGEl= F T C.L EiVT = .115 TCITAL Ar;EA = i. 7:, ALRES C❑['1F'C]S T TE F;UNGFF COEFF I L FENl' ~ . 4I 648W,5164S4 C]VERLAIVD FLQW VALUES " C t = .15 L = 220 lu = .4 S .C]18 CHANfVEL FI.,.l7W VfiLLlE.rr L 505 21 = 4.5 Z`? 4.5 N . 0:3 Ei ~ 2 S - , 008 TL3 = .3b CC1h3PLlTED VALUEJ DUR = 12.20 IlC7 - 2.OCs ~010 2 . 2E3 ~ OA 2.26 BOWSTFt I f`JG C:RLCULAT I OiVS DF7TE = ~,1 /95 LJESI GNER = W MCMlJLMi I fJ BAS ].111 A" F'RC]3EC7 iVA1''iE = d`1 T DI LC]h1E EAS7 15T AI7D I T I t;1N DESCRIPTION = STIRMWAl"ER DRF'yINAGE t t IG1ten5ity Odeu. Vin tlsac.st Storage {m3,n. ? (sec. ) (in. Jhr. l (C. s. i , [cU. ft. ) [cLd. +t. ) (eU. ft. 3 5. o 300 3. 1 E3 7. 62 1 4a 600 e53 10.0 600 2.24 2.55 2043 1200 648 12- . 2~K 7::~21 2. CsC) 2. 2 8 2 2 71 ~ 3464 769 15.0 900 1.77 2.01 23.12 1000 512 ~0 . C) 12~ici 1.45 1.65 2:7109 2400 -1 1 25.0 1500 1.21 i. L;8 2406 Y000 -594 30.0 1E34-Hi) 1,04 3. IF1 24= =,600 -1177 35. Cs 2100 .91 1 . 0+ 24:70 4200 -1770 40. GD 240CE .82 .97. 2470 48CICE -27,30 45., C) i! L14/ .74 . [74 ,41'LY47 1 514 0 C1 -21 17 , 50. C) Z [ 1(,) Cd .68 .77 2 `r 1 2" 6000 -3488 55.0 ~ ,:C1Q .64 . ~ ~ 2t.r82 6600 °~4018 60.0 ;~600 .61 .69 2670 7200 -40 65. 0 3900 .60 .68 2B07 700U -4993 70. 0 4200 .56 .66 297,4 844:FO --5466 75.0 4500 .56 . b? 2997 9000 -600:; 80.Cf 4800 .5Z ' .60 :1 4:3 9600 -Ea557 B5. o 51 0`J .52 .59 Y 17."? 10200 -7068 90.0 5400 . 50 .57 21 1 10800 ° 7589 95.0 5700 .49 .56 7-:7.1 4 11 40t) °-€30F36 I OCi. f] 6 0 0 0 . 48 .55 34 1 CI 12-C700 -859c1 7HE MAK I1`7UM STC]RAGE IS 853.49532001 CU. FT. ~ The ti me o-f crancentra-Li csn is ].i. ~0268 ma rac.rtes. The Llndeve3, oped f 1 ow oLit is < c. {.s. TEN YEaF; 5Ti7RC'1 GALC ~ -fiA7lOtSIAf._. FQFiI`'ILJLA HYI3RC7LOGY r L]R"fE =R!"?!95 DESI~'aNEFd = I•' W hICCaIL.lLKIN E3~5If`J ~T. F'RQ.7ECT NAME = MI D Z LD1~iE EF3ST 1~'~'l" AADI 7I C]N ~ LfE5CF2 Z PT 1ON = STORP'IWATEF+ DF'.A x NAGE SL1BAFikA 1= .12 F1CRL:a al.lEtAliEF`i 1 RLI1VCjFF Ci7Cw F T CI 1=NT = .9 7'OTF,L AREA = .12 F7C~~~ COMF'q5 Il"E RUNOFF COEFFI G T ENT = .9 , OVEF;LA1VD F'LC1W VALL1ES , G t = . 3. 5 L N _ ,0i6 S _ .03 CHWNNEL FLCJW VALCJES L - T,~C~ L I Z"? « .167 N .016 B d:l S . 008 f J1 - .126 _ caihPuTED VALuES OuR 5.00 110 ~ 3.1e 0lt'r . ~4 0 (A - .34 Curo (~~~'n:h~ ❑~n CD►n~~YauouS (~YD~Ae- 3ZWp 51 ovt ~ ~ Q• 1 ~ i ~7 ~r1 S) ~ ~N QL l L'. " 0.3i- c§s Destgh 'D►s c~,or~e. C~ ~ 0• ~D $Z ~'r v ~.n ~ i q l ~ o P ~ ' (o ti 3 R E=ct+n ~ C ❑u.'~$ ~ « 5°~' n~ yv►y~ a~~r +C~1a~ c~ rn~n L 0. 3 A- ~ G~~. !~l v 4~7 ' - ~]5~'. 1 Y C.ur1~ ~rt~~ , -~:7~~ ~ ~4-v~ ~~e.v~i►nc~ f rA DEPTH DF FL[}W - y - FEE7 , 01 02 03 .~74 F}3 .GB OB IO ~0.~3 2 5 4 s.S B.~ 9.9 10 , ~~~t a o • I 1 ~ I I 9 . ~ I i A ~ i ~ 0 1 ~ I I ~ ~ ~ I ♦ ~ i~l~'~ .6 ~ T ~ ~ ~ ~ ~ , , 4. i~ E I I .a I ~ x ' I-+-Y-~ , a-~---,-~-~ ~-.,•~i~~,~ ~ . ~i--~- I~~ ~ I ".tn , . ~ ~ ; ; ' ~ . ~ ' ~ v•p8°~ , ~ 00 ~ ~ ~ ~ ~ ~ I v~~l 9 , I~ I T^ ~ ~ ; r ~ ' • . .os ; z"Of ,e. .e5 i-4- I I ~ , ' r I ' i w ~ ~ ~ ` ! ~ ~ ,~p ~ ~ .R3 + i I I~II i I i q; 7, o, ~!I , 1.0 (a) D1SCFiARGE PER FO[]fi []F I.EIVG7H OF Cl]RB OPEN1HG 9NLET5 WHEN INTERCEFTING IaQ°Is C3F GUTTER FL{]W L. i ~ I (tt) PART9AL INTERCEPT6d1Y RATfO FOR iNLETS ❑F ~ LEf~GTH LE55 THAN L z { ~i 7~1~a° i I I y i ~ I' I as .as ,oe .ia - a 3 + 3 s a 10 • . ~~Lcl , - CAP,4CiTY QF CL1RB DPENRiVG INLETS ~ ON CaNTI N UDUS GRAD E ; 6-39 F9GURE 16 ~ RA`f IOhlAL F° OR[IULA H'r'DF;OLOGY I]ATE =8I',: I95 DLS I GIVER µ k; W f"ICMULKX N BWS x N "A'4' F'AV ~ ~ - PROJEC`f' NflME = h1 ID I LOIIE EAST f al" FAI7DI T ION i3ESCRIF'TI pN =STO~`aMWATE{; DFrAINACaE SiUBAREA 1=. 12 FsCRLS SIJDAR'EA I RLJNC7FF C{~~FFT CICIVT = .9 . TOTAL AFiEF9 ~ .12 ACREca COrlPOf-' ITE F[UN[]FF CC3EFFI C! EN7 = .5 flVERLAiVD FLOW VALLIES Ct .35 L 2 I`J 016 S - .03 CHA#'klNEL FLOW VALLlES L s ~ . Z1 = :37 2? = .167 N - .016 B S OOE3 TD = .126 Gf71"IF'!J TEI7 `J~LLJE'-" D4.1R - 5.00 I 1 - 3.13 010 - .34 C! Fi - .74 C v.rb D~enir►~ oA ~.Dw '~oi~.~ ~ ~~'a. '~~a'~~61 ~ ~~~sD `rr ~ 4L' ~ ~ 3° ``C h ~~►'t ~ ~,g ai e.Ai~-a+%cv..... ~ c~s F=OAe tA ~C'LAw ~ ~ , 3.Q19 -1 (aA3) ''I - Curlo v.1~-~ ~ ~C~~e- ~ 4'- a" OTe.A;+Xg • ~ ~ ~ 5.T_ ►~PD I~~a_~~ - -N~. lz_~~ ~ G E _ C A L t LI_ 4 v N 5 - _ - ~ wM s i tA_ F►~-~- - - - ~ _ r ~ , ' ~ . _ . _ ._..a - _ ~fiV ~C : ~.._.5_`~ ~ _ ._~3.~~~. _ _ . _ _ _ - - . • _ - _ _ _ . . - - - ~ ~ 1❑oD ~~s• ~ 6 5.1~$_..~'C _30 0 c7 _A._c r. - - - - ~ I ~ M~- t)C) M _e__._'~A~~. 12-133$ V-w_ ' 2,\5 I N ~`[OV,~:G~ ~E_+RQ i~'D . _ - - - - - • ~ f . ~ _ - - , °1~_~ ~ ~ t] ~ ~ AG ~ ~ ~ ~ ' _ _ _ ~ T ~ _ . ~z.1 J _ - ~ - - - - - _ ~ _ _ . . - - - - _ - _ ~ r~l ~_~~~~_C ~ ~t F_x .z-~~i ~ . ~ ~ ~ y~ 208' ~ PLJl Y D . S1i C1 ~ON 1!~ TAIL - ~ " . ~ . ~ 1d f]7 TD SCAtE c.~ • ~ o . . c~ ¢ ~ BACK AND 51f3ES QF "248" PON1] a o TQ 13E NIGHER 7HAN PAVEMENT 51C1E o 0 < ~ ~ ~ ,a ' in n POhJa EN7RY ~ ° ~ 'JARIES, 3' MIN. VARIES 4' MIN. ~ r~ 3• C1nY45EL! GRATE UNE PON[3 WITiH GRASS S(]t3 . <A 4 4.7 5L ~ ~ 15 ir~T - 14= r coNcRETE cuRB iNLET. , . TYPE i sP(]KANF CO. 5'~- ~c~;~r~o ` . cEMENT CoNCREre DRwEI "20$" POND FLaoR . ~ PLAN MEw: v ~ POND ENTRY sLOPE SraD TO rOP c~~ ~RYWEu. . OR MAS~`iC aNY ExPOSED JC1ENTS A.3r ~/1L I ~ ZYISil71k1 ~ IIiGe^ io.~riF `A!f'~OGO 45rC5 S7r aFL]roved e.qU1Y0.~C11'rS ) "L"=2° M1NlMUM dR AS '~e.-}ween -~'r~~ 8r~5well br.Lrrel and -Vhe u~rshed dradnrock~ ~ and be~'weev~ ~h~ w~s4~d ~ra~rmG'4~ av►d ~h~ ha~'ive E[]GE flF PAV'T. /1- 5PECIFIEfl ON PLANS ~ C]R BACK OF CL1RB j e ~ I _F;A`C I OIVAL FORMULA HYDR0I_06Y L3piTE - 7/3,1 IR5 T3ESI fsNEh =I GJ hdGMLJLk:I IV BASrl'+! "B" F°ROJECZ lVAh1E _ MII7TLp3`'3E EAST 1S7 ADDII"xCll~ ~ESCf; IF'TI ON = STC1RI€"IIWATER I?RAINA.~°.-,£ v11BAREA 1. _.22 RCRES SLJBAhEA 1RLJIVOFF GOEFF 1 C IENY = SUBAf iEW 2 =.16 ACRES aIJBr1F:EA 2 RUiVOl= F CUEFF ICIEI'J-1° = . 1 i' ~-OTF;L AREA = .36 ALRCS CO1F1P051 TE RIJNC]FF COEFFT C T EhJT = . SB4i 1UJib:. 1 6 OVERLA➢VD FLOW VALUES Ct = .15 L - Cr N = . 016 5 = .01 GHANhlEL FLOW VALl.lEa L = 13B Z 1 = E, 72 = .167 N = .C'I6 s CIti9 TD = .156B CqMPLJT~D VALl.lES I]LJF'; - 5.00 I1Ci 3.18 01C) - .71 DA - .71 . , , L;E:}WEi7"F'iIN'a C:ALCL1LAl° I ON5 T3ATE = 7/'~1 I95 I]CS IGNER = F: W MC117Ul,.b:I N BASIN "L-1" F'ROJECT lVAME = 1IIDILC1C'IE EAST 1:"sT AI7I7 I'TI C1fV F.IESCFi IPT I L3N =ST[JF'ih]WATk.R DFiAT NF1GE - t t I ntei-isi-ty Odev. Virs Staf aqe (min. ) (sec. ) (in./hr. ) (e.f.s. ) iCU. ft. ) (CU. ft. ) tcLt. ft. ] 31. 18 .71 :2ezE 9c) 194 10. 0 600 2.24 .;;c) 'Z 49 18~.~ 169 15. C.) 5700 1.77 .:;9 v94 270 124 2~..~. 0 1200 1.'"~..~J . 3 2 419 360 ~7 25.0 1 trj n() 1.21 . 2- 7 47C.1 4 15 C} -20 ZC). C) 1800 8 . 04 . a'~ 4,39 540 - I 01 75. t:r 2100 .91 . 2cl 445 6.Y0 -185 40. C) 2400 .02 .18 45 5 71'_0 ---26-5 45. i r 2700 .74 .16 460 8I c) --35Cf 50.0 ZS=sGU . (s8 . i ti 468 900 --4:7N2 ; 55.0 3300 .64 .74 413} 99c) -507 60. C) ':~600 .61 .14 So1, ICseu -579 65. 60 . 1 ~ ,,7, 5 r?9 1170 -641 70.0 ~42GC3 . . x 55-1 1260 -706 75.0 4500 .56 . 12- 567 1 b75 t) 90.0 4G7OO . JR . 12 577 1440 -O6Ls 85. Ca 5100 .,.r2 . 1 1 ~rs'~ 1 v:.;0 -q==s 90.0 5400 . 5Cs . 1 1 611 1620 - 1 0Q9 ' 95.0 5700 .49 , 1 1 t~ 1 1710 --1 i l J 9 , 1C1[.1. C] 6~.~00 .48 . 1. 1 650 113crO TNE t+iAX IMLJh1 5'TOF:AGE IS 193. 71?ay15'999 [;L.1. F'T. %V '1"he time of ccrncentratiqn is i minLttes. The lJndevel oped f1 aw out is e. f. s, TEIz# YEAR iTORlI GALC RAT7 ONAL FOhl•1LJLA HYDIROLi7GY DATE _ OId'-195 DES].CNEF; = 1' W NlCNULK1;N BASIfJ "E'" FAVT. ~ F',~'ip.7EGT NAME =!"lT DI L[Ji`'IE EAST 1 al` RDDT T T Or! DESc~ IPTx ON = sTORMwATER DRAa NAeE f_"°iL1BRF+CA 1=.150 ACRLS St.lB(lREA 1RiJNC1FF CC7E1' F I C 11=hJT = .9 °4'OTF,L AREA - .15 ACRES cC]f`1F'CJ.~`a I "f E RUNCJFF GCIEF1= Z C1 ENT = .9 OVERLAIVD FLOW VALI..dES Gt = .15 L - N - .016 5 = .01 CHAfJI'<IEL FLOW VAL_LJE; L - i -~B Z1 = :~,6 T2 = .167 N = .016 B - C) 5 .009 T D = .17 - - CQMi='UTCI] VAL.IJEa . DLJR - = a. 00 '.18 - D1 C) _ .43 0 P, 43 Gur~ ~3~e~nih~ oJ LiDw Po;K~ ~-1 ~ i~ • 1~` ~7 e. b~C W_ a~ e.r c4~`i e tin~ +r ~~e c e. 1~ ~ 4n o. ~ ~1 ~ ~ 3•~`~ I ~ H`~~T~" ~ F~.C~~~i ~a.13~J1~ ~ ~ ~ N). IZ$39 N A ~ ~ _ C A 1- C ~..1 L. ~ w ~ - - f _ _ . _ ____.__T._-•_ • • ~ ~r.~_ ~ -..-.:~_._...._--7...._.-.. ...ri~._r~ - »v -..-~e--.,-•_._."_-_.--•.....--..-_.~w-. I ~ ~_..._.a____ ~~~R~ 1~'.-_~ p'~ A iL ~_~I,.~ T..:.~ w..,..._. _.~_..~7 ~ ~.s ~ _ I~'+f G ; - _....____._.___.__.w.. _ ~ . + - ~AV-~i~~~~-•_-•_..~~_~y a . _ - 1 - gK►'~~~•--~=-- - _~_~'-°T~ .,r • ~-_~~t~Q..F:T.~---- _ i 2000 L v`T l * I ~ i ~ ' ' _ ' a_' .-~e_~...Y .A W~"_... ~...._---•.-..-._...a....._._ ..._..,k--.....~-«~.--N~-.~ - _ ..._...s~..._._ ' " " ' ' ' _ ~ _ ' " 'a~'+ ~t~-F~s 1~, _1 a, ~ ~ - •~,1,~_ ~G~~ 'f t ~ - ~ , - . i ~ - P ~ - °--..,._..~.r.. __.m.~. _ __Y,_e.._._ __~_ra ,.~..,..w..¢ _ _..V .'w _ _ . _ . _ _ _ • _ _ _ . . _ a . ..._m r._.._ _ ~ _ . . . ~ _ . _ _ . _ _ _ _ F . ~ . - • - ' i i -K.A..1~3.~~-_G~~"±~~_.__~f~~ .i . ~ __..___d..._ - - - . - - : _ P~• 5 {.~1~ . _~_sw_.._..~ _ v_..... n , f - ~ .~oLrre-l -Dr~w.ell_~.=..±-~__.- ~ . ~ b.3 c~s au-t~ - _ _ ~ • . _ . - - - . _ A~e kID IE D : I _ . . _ --------.______~__~..u.~___...___.~..__..____~.__ _ _ . _ r_ ._r _ ~ ~ 5 0 ~.`~•.~_~_~5~.~`1_~._..~~~~ 1_--~------~e~_.~ ~ ~ ~ 5 3.~-----,_ ~ _ _ _ _ i _ __.n__.___~~e,.~----_ . _e . _ _ _ - - - • - - - ~ _ . _ _ - _ _ _ _ _ . - - _ . _ - - • - . . . _ - - a _ _ . ._1 - - - _ . • - - -_w _ _ . _ _ _ I f -----•----------~1..,_.. Y.~__--~•--_ _ ~ _ . ~nA-~ -•Y~~,. 1 _ _ N Y_. ! _ _ _ ' --__.w- - I - - - - - - - - . _ ._r ~ - - . _ _ ~ _ _ ~ _ _ _ . _ ...,....e...._Yr_w~~_.~-._--•--.~._~..,.._.._~.___....w._..t....w___--•-~------------°-° I r.~._.. _ _ _ __v________, _ . , _ t,._ _ _ __m__ - _ _ T_ . ~ - - , _ _ . . _ _ - - - - I ~ _ . - _ • • - - _ - -•.b_____~__.__~,__-_____~...~__._~___ -»__.ri_...._.r. ~_~...__f •--..~.m Pd~_~_._ _ _ G Y ^ _ . _.'~!!_l~? __~#~S~C _ I t?,~~~~r ~ v~! _ _ ~ ~l~_f ~ , ~ _ --l~~_~__...___. - _ _ . , [1~ ~M('111.~~AJ. . • ~ _ ..a • ~ ~ - ~ • r ~ ' ~ ❑ : _ : - • • ~ ~ - - •4 , 01 - F T.1 ~ T. ~~d1~=~~'_'''~'r~~~ , . . , - ~ • . , .T . ~ J . : • l ~ • • ~ - • • - ~Ca~----~ T. /.FT. f0~. . r.. . - _~~v,~~, Cvr►c l~`_ - ~ ~ - - - ~ ~ ~ur1: - - - - • -Sw~,le. ~ v~'t~+m - . _ . . . . . _ _ - - - - - -la" . ►n' - . Crv:S- o 9,~_ V-ck. al~. ~ S~5~ ~I _ ~ ` - - ~ b - _ _ - y___- - - , , .e _ ~ - - - - - - - - - - - - - - ~ - - - - - - - - - - - _ _ ~ _ . _ . • - - - - - - - - f-lw ~ - - - - - - - • - - . l ~ ~ 5 e.m ~.►n ~ - - - - - - - - ~i - - - - - ~ - - - _ s . _ . _ _ - • - - - - l o ~ . . _ _ . _ . _ . _ . - ~ - pr lvew~rs~- - _ : - - ~ ~ - i• _ 3 a~'h~~r~-~ - _ _ ~ ~ W ~ - 0.0 1~~i ~F7. ' 3 1 i l a - ~ y~ i - . . ~ . ~ . i n ` a ' ~ ' + " ~ . , • ~ , ~ U • , . ~ . ' d!~`~7 ,i(!,}3~llrir~ 'i~~.: ~41 sio,,_.__ ~ C,o~rec. - - - - - - • - g ~wce1~. on,~ . _ . . _ - ~-u•'~'~ , ►D` _ 15.54 , CCoS~- 5ec- t~on~~ - - . ~ - 4 k ' •~r^~~- --Lci, 1.13/ ct) 7.~~A,5~~1.~3~ ~ ~ r~1 119 k, a~ o.ib z. a o ~r - 4,') ~ p;1''~~. . . _ . _ ~ ` J•~' "r' W ' i NIC). , - , • • - - ~wr•~ - - - - - - - - --i - • ° - • • _ ~ - - - - - - - _ _ . . - . _ _ ~ - - - ~ - - 5 - - - - _ - • ~ - - • - 1 ~ E' ~G o~ 5 ~n ~ ~n~C • s _ _ I ~ ~ _ D~C +r V ~e.W q.~ . _ . . _ - _ _ ' 1 t~ . ~ - - - - - 4r, ~rti7~^ti _ ` ~ ~ I3U f} . D w7 F'C • 1 F -T• ___Y4 _ ~__1 ° _ ~ • ~ . . ~ . q a_- \•__a ~ ~ , o • ~ . . .l . n _ S ' ti , , !~il!i]!i1!I'.l~~r?"i~ -j . ` ~ - - • . . ~ ~_q 3 ~I _ ~!~~~`'`f ~~~►~..~~`~'~I ~'l ~'7~f I . _ ~ • . - - - - • - ~ F r./F~' ~ o.`~`'~~ - - - - ' - - - - _ -----__--SSoi t L o~rn - •5 ~_4•5,~ ~ ij 1 r o._ ~~I3 a°_^g~5~_~ 1,`~3 :~.J~1,~35~._~ _(9~?~~j ?.1_~ l i~~~. o~} ~~.~~y.~._•. - T ~ • ~~7~ C ~ L~t- r - _ _ • ___.._m____._ . _ e~ ~ _ . _ • - C~ ~ c~ _ ~ ~ - _ ~ ~ • • - ~ ~ ~~l.r ~ - - - . - - - . - - ~ 5-11 'f Y - _ • - - _ - _ • , ~ - - • - - - i • - •W•-.__.~_~_~ -_._•-.•-•~Y.---• . e..___. - r.--• _ - _..___.---•_.._.r_,.. . ~ ~ _ - • , . - • _ __._.._z----_-•-.. -i W..____ - - _d~-•-__,~._.._.~ R d.. ~ ~ r_~..~__ _ _ . _ • . _ _ . - ` _ a__ •_e_____.•---•--__.__------ - ~ . ..m.__. ,w..._ _ - - - ° - . . _ - • ---°-~__.____W • • _ - . _ _ ~w_• _ _ - • - E F E r.._~_..~~.... __----_--.,_••~°--••_.w.____----- ~ - - • - - - - . . _ __a..~ . _ RAT I i]NAL FOF:MULA HYD1;OL..C]GY fSATE = 7/26! 95 DE5! GNER =K W MCMLILF; I N BAsliq "C" FROJECT NAME =MT I] I LDf`'!!L EAST 3ST ADDr l" I C1M DESCF:IPTI ON = STORh1WATER TYRAF IrlAGE Si..l&AF;EA 1 = . ~7, AG:RE~-." SLJBAhEA I RURlOF F CL7EFFIG T EIV`I° = .9 aUSA11EA 2 12 ACRES SLJBAREH 2 RlJNqF F LOEFFICTENT = .15 TOTAL AREfa = ..+`i ACFfL.S COh'1F'QSITE FilJN❑FF C❑CFF1 C I E9VT = . 642E3iT 142857 OVERLAIVI] FLC7W VAL.UEa Gt - . ib L ~ 0 N = .016 s ~ . 01 , C:FiRNNEL FLC1W VALUE5 ' L. ~ 126 L 1 = 36 Li - .167 N ~ . 016 Ei = C1 s - .[i11 "I` I) = .1518 COMP{.1TED VFtLUE:a' , DUR - 5.00 T IQ 3.19 L~1Cti - . ~ ~R = .7~ BOWSTRT IVG GRLCULA7I OPJS DATE = 7/26J95 AESxGNER = K irJ MCMULK! N BAS 1 N "C," PROJEcT NAME = Mz ~ ILainE Eas-r IST ADDIr x oN DESCR T F'T I Q&V - STDRMWRTER DFcR I f~~~E t t Trrtensity Cldevo Vzn Vc►LIt: Storaqe irr~ir-a. y tsec. 3 (in./hr. ) (c.f,s. ) Q:c.t. ft. l (eu. -ft. ) {eL►. it. ) 5. Ca 18 .72 ~G E3 90 198 10.0 600 2.24 .150 754 180 174 15. Cr 900 1.77 .40 > 99 =0 l ~ 9 20.0 d..~'..4~~) 1.45 . - _ 4 25 :7.60 E35 25.0 1500 • 1.21 .27 4:1,6 4.`_s0 - ~ ~ :710. 0 1 gw 1 . 0$ 44:.i 540 `Ay,~.a 35.0 i1C10 .91 a 2(-.) 451 6H.E;9 -179 40. 0 2400 82 .18 462 120 -2-58 45. C1 2700 .74 .17 467 a 1i ) -345 50. 0 ~ 0 0 0 . 6E3 .15 475 900 - 4 2 50 JJL_) ti ~0 E_I .64 .14 49(I 970 J~) 60. C1 3600 .61 .14 508 1080 72 65. C.1 =y900 .60 .13 5-716 1170 °`644 70. G.1 4200 . ~8 . 1:3 561 3260 °6 99 - 75.0 4500 .56 . 1,~ 575 1350 -775 E30. 0 4800 . `J:r .12 585 144F] -855 85. Cy 51 0o .52 , 12 607. 1530 --92i 90.0 5400 . vo .11 619 16^~.~ -1001 95.0 5700 .49 .11 64 C; 1710 --1070 100. Ci 6000 .48 .11 6 15 9 1800 -1141 l"ME MA7C IML.IM STC3RAGE IS 197.631000001 C[,!. FT. The time af concentrataon is 5 minUteS. l"he LJrrdeve1 oped fI rsw ❑i_it a, s .3 c. fAs. RAT I ❑NAL, FGk:i1fJL.rI N'r'L7ROLC1GY C}Fs"fE = ~'i/ifi5 T7E5TCiIVEF: = i•: -W MGMLJLKxIV BAta'IIVr'"C" PF7GIT, PR41.3~CT NF1ME = E'1ILiILOME ERST laT ADDITT[7N i3LSCR I F'T I GN = STOFih1WA,rEF'i DF'iFi.[ hJABE SIJBAFILA 1=.]4 r^tiCRL:"a iUBAREA 1#3E..1NC]FF CC]EFFI C 7, f=NT 9 T[.7TAl,., r;REA = .14 ACF'iES COMh='iC]SI'l"E RUNC3FF COEFF IG I EN°f` = .9 GVERLAirlT] FLC1W VALL1ES Ct = .15 L - l-' N , 016 a ~ 01 GHAIVIVE'L FLC]W VALLJES L ° 126 L I _ 76 Z2 = .167 N .016 B r 0 S -W .UY1 TD ~ . 1 2'-2- COMF'I.aTED VFSLI,IES DUR = 5. Cm7 110 ~ 18 ` CIIO .40 OA _ .40 ~•~~c'lo DFe. ri 4► a~ Lvw P o i vx} ~ c b" 's o -c@ J 4 l6k0.L kiBlnk J ~ kA y ~ F ~ IR ~•6~ (D.1~?-) ~/,L ~ 3•1~ ' Op 0 ~ ~.Y►ti v~ o~ ~ ~t~ W i ~ ~ ~LA es ~ -JACI-, V.. $ ~;s IA.h.,-G_S-- -C.RL C UL P.7 _t0 N s r--w~"' - __._..~_~~_~_1 ~`~~,.~C~ a~ - - _ .V,j Go ri LAWI4_ - 1►~ : - - - . 3.~ 1- l • - - - • -r ~ , ~.~C L ~ V ~ - - --~8 ) ~ . _ _ - - - - - ~ D r~ ~ ~ - - ~ - - p ~--p~t~t~5 ~...~,R1V ~5__~,__. . ~~~v~ - ~ .oa ~T• - - - ~ - - • _ _ - - - - o b t3 ~ - - - _ - ~ --+~e.v a V-~ _~i o_u ❑ ~0135E - - - 1_(~ 4 D_g _ 3 B ~ o6. - p. 8b _ A.c P--F- _ o~'y $ 5t Qr o, e- r ~15,~'~~~~~ • ~ 4 ~ F~ ~ - _ . ~"'._~fr.~• - - - - - $ ti w 5- ~[~Y" i ~v. ~ e Lo,rrel - Dr~we41s - , _ _ . r _ . .__Y.. __r. __~..T - • C rC 5 _ ~.L~'~ - - - - , • ____._Y.. _._.___.~._...r____~._.~__-_ . _ _ _ . . . $ ~ .~'C ~ ~ _ . _ - . _ - - ct - - ~ ~ k-v - - - - - - - - _ , i NP+ u LKC t a t4 S z`"\) Z0 8u 5'W ~~.,.S S T D G E . _ --~p+5~~{ti! - --...T ~~~'1~~4~i - . _:~Y+~4~P~~~ . ~.~V fatir F~.F3~r,~ - - ~ - - I ,7_ L_~_A.~. -9 8 F-r.`) ~7~ - ~I~.}~~~~~~..___l~~❑_F~•~ _ ...C~_& ~_[.~_$._rt~} ~~r-~? - 35 69 , - ~ _ ~ w _ .~v • E FS • - - - - - ~ _ . _ - • - 1~~ F~, 1 ~ 5.11 FC~~'4 l`~ l F~: _ ----v---- _ . _ _ _ - - - - ry - 7D~~ - - ~ ~ s a 3 - - ------_,T~ C `~_v_}_(~o.~~-__t_~ v ~ r~-~__ . _ ~ ..F~• - - ~-J-~--~ ~t.~~r._F~t._} . 'F°~•- . _ - - - - - - - - ~ - - - - - - lv-- - • - } ~-.~ti~' ~~_'F'T.~ o ] ~ ~ ~ : , - - . _ _ _ . _ _ _ . _ _ _ - - - .w.___--__~,~ ~ 4r ~ ~ • . r~ 4 `I - ~ 13 - - - - - - ~ S ~ ~ ~ - ~ 1~ 1~C 1~ 1 D~•1 ~~14 ~1~ ' ~7~1~1~1&~G~ ~A.LGULf~YtDN~ - ~Kwr~} Y __.e_.~ 1 Dt__--__~. ___.-i__.~_'• ------`S.5 _ _~.W..._...._____.ll 5,- ' . . _ _ -m--- • - - --~-~a~ o~ L~Ir►ve,.wa~^~--- - - - ~ - - - _ - - - - ~f - , Y ` - • : W ~oal 4.ot~"1 -F~.I~rT• ~ - ' ~ ~ . I . ~ . . • . ,p . • F • q ~ ! a~p . ~ 'r F- r P r"~ ,3 i L ' • ~ ~ 1 V 4 4 __-_.---v ~ ~ ~ ~ ~ ' ~ I ~ , f •~~~~I~/` ~ ~ 5~ 0.~ 4 p ~ ~ . _ --•...ev._~. _ ,.....~.____.~m___!!'~~,~ e.~.~-J pP~~_...~.___.__._ ._:~1 a~r-~+,°•~_ _ . . C~ onc. G ux1r~ - - ~_n._ - -Sv~~I~.~Sa~~Drr► . .__,_._--------------_..~~vpe_ctio V~ a - ~.4~ r~ . T - • _Y~_: j_~..Fr.rF a _ _ . - - • _ _ • -_•-------,.~_.F.__ - - . . • • - - - • - - - - • - • • _ - - 15, ~Se-YYle-Y1-t . _ - . • - . _ -7-- . _ I---•--- _ . _ - -._---_..._e ~ p~ . - - • - - _ ra' -~.-4:5` ~ -a___.._ . _ pr sv~wa+~- _ . ~ --`'fi ,n~Y.,~_ , ~ _ 6~"~.'-...-,.. ~ ♦ ~ --,rs~'l~s+titi!!~`~ ' QQ C],D~~e'T _ : r , ' ~ -.-~5 ~ "v •~~9r • n ' . y n s~ e ` 't • ' 4 , ~ w • e . G ' s • ~ . ' . 3 -~---~-a p /F -~r,l~~~°'►'~~~]_+~~'7~ _ ` f!'r - - - F~. r WR1~ -k- cav~e, , Ope~ ~ _ ~,vtr~l~ ~a~#ar~►~ r.._.___.__...__.~.___ ~-urF, - ~ - - - - ~ ~ ~.~t , CroS - - g°~ r t•°l3/ . 119 O.'~b ~.ov . - - - o,• - . . _ _ . . • - F~. No, 1~~33~ T~~P.SNA~c - - - - . ~--F~~`w...- - - - - - - - - - ~ ~ _ _l .a_.__._._.__-.~[3-.-_~ v. s e~vr~ ~n~C___.~-__.. - - • _ - --l D. _ I • - ~ _ _ " " ' ' _ • _ ~ ~ " ' _ _ . ,w ~ . " ' ° ' " ' ~ ~ ~ - • a ~.~a-' ~~T~, ~ ~ 1 ~ ~ p _ r . , _ ~'IIYI.!'ll..'.~i.:1i: : , T rl~-,~~ ~r~i[a,°'l ~ ~~..---Y._ _..._.e _ ` ; r. ~ -------~..~..i.e_d_~~ wale Ba-Y~_o~ _ - ~C+~~ec:~~~~°b-___. S o~~d' S tic~i~wul~ _ ilc 4~' - - - crvSS-- Se-C'tsl7vtA3 1NYc0. D~ SwRte- _ . . - ~.25 ~5 . ~~LI.•• ~.5--' ^ -`f I 3 I I _ L A - • ~ t r❑ r ~ y bi - ~ 4T .r.._.._._~.e ~ - - - - - . . _ -----'t-z-• . .Y.._ _ ~ ~ •'~[jP._T_-__ i ti` i 1'~~ ~.~.~3 ~ ~ ti ~ -I'-'-------°- ~D . • • - w._ -„s. ~ ~ ~O~ DT YY"4V~Y~qy ~.flQ~°`_..._.,.. A. ; ...a' _ ` '__~"_"_Wp._..,._ i~~S . • a . i , . i _ . .yr' . . v - . . . ~ ' - - ' O ._-•---------_~.__.______~.~-~-`--~~~~~±.1J G7~' ~ ^ Srvr,.1e- t3 o-i -t or~ . 1~~i • [aA~ ~1C~~WA~1f~ i . . rJ P_ ~ --•.~.~..taS S - ~~~n~~l__~.~.~ c~__.fl'C~ ~.W ~ ~ . . . .R ~ - ~l(~,.~'~~~:~~~,~ ~o.~~~~.`}_~(~}~~•~'}(~~~s`} ~ - . Y ~r ~ i ` _ ~ 1 '1!_1~~" D ~ ~ ~ ~l,_ ~ _ d '.3~ ~.1 ~ ~ Z7 ~ • . ~ ~ . ~ S ~ •..y • . . _ - - - - _ t~ f • . ••_-f_•-_ - • . . _ - - - - ° f _ _ - _ _ _ - - . . • _ . F- 1\rr - - - - ' - ' - - . _ - ~ - - I_ ~ --------~---~~y~~.o~C `~,+~~v~hnla~ _ ~ _ _ .P-.r~r 5 _..e,~_~...~ _ _ _ - - - ~ . . - - - - -In' - - 7-1 7 F~.lF.T• r ' " _ . t • o - ~ _q. ~ C ~ ~ '1, . .p ~ s _ ~ • ` ~~~7~2 ~~~fi~ .~"7~I ;~lC`~~,t~~l ~ ~ 3 e ~ cr gj's-- s.er_j' s a".0~.._f~ i l•~ 7 ~ s _ rY~f w. _~_s~~.,.....t_ " - - ~ m..~.. ~ ~ ~ r~ t~• 1, ~ . 9 r ~ .r.._ ~-_.r_ " _ -------------a ~93 -0^j-5 1.13-/ ~ , r tv•t,,. . . ~ ~ ' ~ - - - ~ - . _ . 3 - -_~-_.__~___Y~_~~_..~~___._, .y_~..~_ ' ----ti ----.~~-~_.,..---.-~---°----.,_..¢.___s__..._..,~__~._,__.._~_..•--_.._.~____._.. _ - R ~ , ~ ._.~~_...._.~__.__f._.~. , _~...,w _ - _ ..e ~ - • . . ~ ___._.._~___..~_f__...~.__T_~-•_--_~~._.,._...~_..._.._°_--•--... • •----r.y.._..-•--v.•......__ I . __---~-~.~__.v_~_ - I ! • - - - _ .s_.~__~._ 9 . ~ ..~e_._. _.T_._____,____ .___.~_e• - • -----e.~...,e_~__~ v__°---- - , . - V ..~_.~_.---~_._.e~~~__...__.._~..•-~--~-~_..-_-...~-.....~.__~.__ - . ~ . .._.M i _..,.~._.._Q__.~....., _ • - » - - . ~ RATIt]NAL FC7RI'7ULA HVDF:OLOGY DA'fE _ !l +1 l95 DE5 IONEF: = K W 11CM9JL}.:1 N BF3S I N " D F'ROJEGT NAME _MT I7I LQlI~ EAST 1Sl' AY7DIT ION L3ESGk%I PT I D1V = 5T T RI'1WF1TEFi T3FeAINAGE SLJBAF;EA f = .88 ACREa SE.1BAREf1 1 RUNOFF COEFF I C IENT = .9 SUBAREA ; _ 2. 07 ACFiES SIJBAREA 2 F:IJNOFF COLFF= I CT CPJT = .15 1-OTAL AF;EA = 2.95 AChES COiIF'OS 1°f E R1.,JNC]FF Cl`7E1= F T L TEIVT = .7,777-2881 a55 DVLRLAND FLOW VALUES Ct = .35 L i L 0 f Y ° .4 7 .014 CHANNEL FLOW VALUES L - 317 Z3. _ B.6 Z2 = 7, a N 07 B - Ci 5 - . 0J.`; TI7 = . L:8S COMF'UTED VAL..lJES DUF1r ~ 10.77 I 10 - 2.16 010~-~ 2,:38 Q A - 2.3 f~' BaG15TRI NG CALCIJLRTIONS DATE = 7/-'1I9 s F7E'SIGNER = h; W MCh'iULF';IN BASTN "D" FROJECT NAME _MI DT LC3ME EAST i ST ADlf3 T 7I 0N L}ESCRI F'T IOIV = ST I Rl"fWATEk DRAT NAGE t t Tntensi ty Cldev. Vin Vout Stor`°ae}e Smirs. ) (sec. ) (in.Ohr. ) fc.f.s. 3 (cu. ft, ) [cu. ft. ) (Cu. +t. ) 5.0 300 3. 1FJ 3.51 1409 600 809 10.0 600 2.24 2.47 19B6 1200 786 1~~. 646 A2. 16 2.36 24-.a ;g 1292 767 15. Cr 9UQ 1.77 1.95 21 E15 1€300 ~~B 5 ?0. Q I~200 1.45 1.60 2140G 1; I - 25.0 I500 1.21 1 . 3=ti 2294 :~000 . _~~6 :~t7 . 0 11300 1. r.74 I . 15 27,16 77600 - i 284 :3-5. C) 2100 .91 1. 00 2:27 4-200 - 1873 40.0 2400 .e<' .gcl 23,6 E i 48CIzi -t 4Ly2 45.0 i/ 00 . 7T . 612 2 ~?8 2 5400 -3}0YB 50.0 30~.~CJ .68 .75 2414 6000 -r 5E36 55.0 'Z"~y0 C) .64 .71 248w 6600 -4117 60. 0 3600 .61 .67 7200 "'46~ 1 65. C1 ~900 .60 .66 2702 78O4) -50r8 70.0 4200 .58 .64 2 ~2 6 6400 -5574 75.0 4500 .56 .61 2888 9000 --6 11 2 G7Oe 4.B "Tfac{c) e 5w •5L.Y 2E9 Y TF}LOLI `°6667 8..+. C1 51 ~t~ ..C.~~'. .57 M~~s"'.~1 1 C`+20C1 K°71 S« 90. Cl 5400 . 5c) .55 :'U9a 1 CpSOO -7702 , 95.0 5700 .49 .54 7196 11400 --6202 1 C) C). 0 6000 .48 . 5ti :'s21 ~'a 1 12000 -8709 THE MAkTMLJM S°fOF;RGE IS B09.75919 CLJ. F76 , ~The time nf ccancentrataon 15 10.76561 minutes. ~ The UndeVelopec# flaw out is ?~.f. s, I"EIV YEAR STl7hI"I C:ALC F:ATIqIVAL i= C]Ri4IULA HYDRL"1LC1GY ° L7~1°~ _~3.':f ~ a I]E~ I CPVEF~ = h; U! i~#[w~'~uLh:14~ E~AS S~! QL~!VT . PRL7,7ELT fdRh1E YMT Il 1 LDiIE EAS7' I57 AD1J! `6 ION DESCFi ZP1° I C]N =STORI"'14VATER ,I3~';A I NFiGE SI.I~AREA 1 =.'6 ACRLS 5LlBAhCH 1RUNOFF COEFF I C IENT = .9 TQTAL AREF1 = .36 'wCREa CCII"iF~soa I 7E FiUNL7i= F CL7CFF T CIEIV-f .9 C3VERLr'31VD FL[3W VALlJES Ct = .15 L 20 . N .0lh a - .025 CHANNEL FLOW VALLJES L - 467 Z1 = 4C' Zi = .167 N .016 B = [ i a - .017 r TT3 .154 ° CDMPurED uALUES fluR _ 5.00 IIC) _ :.1B • Q1u - 1.~17, L-ZA - 1.0,-!,. e.r\ir\ g o,k L vw ~oiv\i m 0•~u~ r Tt7ko,~ Y1QigV11~ q~ C31~~~1►Ytc' Vk,- o , ~ ~ ~ ~ e-O\*1 i 0A :,,A e- o~ ~~vw p.zz lrr ~ ~ - t.e3 • i e-,A\0 , . _ .w _MtaI_LDME.~.. E-tNs ~ L C Q L oA`C! g N S - - - - - - - - ~ - - - . - -7 • 1~_~ t N "~r~ - - - - - - • _ . . . . _ . . _ I ~ . __,__.,~~•-~,P~~~_~.~-A ~ ~ ~ i~~ _ ~k_~1.$.~ P_.~ ~ _ 3A z..FX ~ - - --~-----~~-~'D~.} (-~~a~}- []0,.~T . ; _ . ___.....-_..ws 61 - -I-- - _ _.T.e.--~_\ ~ 1_G71~~.~.~! 1_4_.~_~ .~~ez•--- - - - - I - - - - - - _ ~ 4 IaD D F~. ~ - - - - - _ , _ . _ ~ ~~v ~ ~ ~ ~ ~ ~ ~ + . , . Hau~e I - - - - - ~ - - - - - - - - _ . _ _ ~ . - - - ~ - - ~ - - - - ~ - - -----_;-Y,~- ~~-►~~s---- -~~!-,.9_5v.-.~4,~~~r _ . . ._1171~ i - - - . - - - ~T a ------~_p_..~~ ~:o~d S~'ar a;~e, .~R~ :3~ i`~ S~. ~r-t ~ 15g3 - - . 1ti E ' ~ . . . _ . . ; ~ S~T o~A,~aE Pt~-qV 'F,1D : ~ _ - -----.~.,~._..~3.___.~..-- - • - - - - ~ ki-S 5 • 1 ~ 3 ~l 'F`~ • 7 ~ ~ ~3 ' ~.1' ~ • _ 4 Z _ ~a y -Q g -u- _ _ _ _ ~ _ _ _ . - ' ~Iz . . • _____..d~ _ _ _ _ _ • ' - SL'Z Z 5~^$ _0 - ' ~.~..~.~__..~.a~e. •P 9 s C J - N; ~ -_~Q=~.~ 3 ,3,y"_~~►~~ar~.,'~ ~ ~ S5~'~~ _ ~~S F ' ~ _ ~ . _ _ ----e. ~ •~ua~ +~,a~.~vr~ ~~rvnn5 `~"r.~-•_'''_'"' ~e i' .~.y. ..i • ~ • b'~~s.~ . .c ; . w ~s ' _ _ _ _..,`rrY~...~ r ~ . w • ` > + . i `a = ~ ~ ~1.... • -~1/./.- ~ _ .~ad'~ ~h1a~h'~AY,~a r~4~~ -.•_••--••~._~•-r•- --~-j-° - _ ~ - ~ _ •r~ _ _ - . _._.a._ ---••_~..._}V~'a W4 ~ ~•~i~~..~ • . .s . 1 tA~~ ~ - _ . . _ - - - - - - - - _ - - - _ ~ vi - ~ c~ ~pF~ 1~ I _...._~.-_.••-._..~~~~~.___.__._,---•--____~~T~_._ _Nn. r ry 1 ',L p~ 1[Y sr y .~_.~.a,.e..lll:.Vr1Rll!'1~ ,~,e~~~~ QC~~9 ryD~• d. ~_V_.._.,~~. ~ ~1-'~`~/' ~•I~ • ,~f l,~e~Pu~ ~ ~ i "y, ~ ~ i = ~1~_ _ _ _ _ . _ ____a _ Y-r C_"- ~r - _ _ . ,n .r ` 5'% ~~t~ 5Z % 'LL ~ _ . ~~►at~s ~a ~a~~~" ~~o~+o,~~a~~ ~~ssa~] - , - - i_ ~.~t . ,o► '3L ~~'~►~~P~S eu9a A-°cd.'DtAS_ 'L-~ ~I L , •s- _ . ~ _ 'r.. _~r- ~ • • -••~~r,--..- ~ ~ 10y ~ s s ' P , • _ ' '1 Q I~.\[j.b.~- clr \ - - y~ _ - _ _ ~ a~a0 '77- ~~~n~~~.xcS ~o an~ • • - - - ~f . ~ • ~ Y - . - - ~7~1 w ~ ~ r4 v ~ 1.14 11 n 1~ ►47.~ , ~ , . I~IsT ~lt*kgs CkLC1.]LfiTIC]NS . _ . . . - - - - _ . . . _._w . . _ . -13` ~asc i - - - rn~.v►~.. ______e----- _ . ~ - ~ - - - _ . . ~ ~ ~ - - - - _ _ _ _ _ _ . . . . - - - - _ - _ _ _ - : ~ ~ ~ ~ . ~ ` -0'•`•,- , - - - - - oo, a . l C~-`6 F S• 1 r Ti . ^ w-F-~m`~~`!~~' ~ ' ' ' _ ' _ • _ ..._w" _f'~ ~n • ~ • q • 1 f ~ ~ ~ a p ' ' +l y • ~ • . 1 . . ~ ~ i ~y , r . 1~. i ~ (o . _ _ _ "A^•~%'J ~ -~:~P~~t' ~ ` ~ f,F T. a ~ e--5 or~ _m - - - - - - ~ . - 504 ale.-~$ot t vw+ - . _ _ - - _ _C..~~b ~ ~ , - ~ . _ _ , - - «~n $~~y t,5`------~---- ~:~Ip ~ 4.~Z - - q.c~~~3,~4~ ~ ~ ~_~'S ~ - - - • i ~ - - • - • ••'~,P~ , _ ~ ~ G-~`~ 0.~1 . - - _ • - - - - • - • • - . _ . • _ _ _ . K/W. - ~ ~ la` - ~ . ~ ~ r ~.5~- - - ~ I,s' _ ~ q,.= " os' kfA-j ~`T. r FY. - :7' I ' ~ - - , ' _ " _ Q:. ~ • e,. ~i~~ a _1 _ ~ ~ ~ ~ _ s A ~ • .r~~~~1~~71~.!ji/~~_ ' - ~ t ~n ~ ~T• r~~~`I1',~~ ~ ~ ~ ~ ~ A ~ ~C. . ~ ~ _._...._~flhYC1Rt- 1 J~7lf~4 ` - • . • - • a f ~ = ~ ~ ~ ~ ~ ~ •._ti '1t4 WI e- o fP,s _ ~ ~ • - ~ ~'hh ~ . ~ • - . _ . . _ . 4a~ ~;~i - - - _ . . _ - - - ~ - - - - - . . _ _ Cro s ; - 5 ~~~t►~v►wl Arew a~c ~~r•i - - - ~ . . - - - CO., o . - a•~o;•` . _ . . , _ . - 3.55 r'~' ~ - ~ DF~ A~ G E C A l~ C k~ 1- k-V m tA s tc "v~+ t'."► - k~ rwAL~- s 'T o~~,GE - ~f'~~yN _ _.._..._~A.4'~M~CM~C ~ S~D~AG~ ~F,ti1~.~LF•~t-~ - (.~~.]_~~~_~.-=----1~1~~__.'~~, ___S.I:_~T, . ~--}~.~..3~t ~r-~• ) ~ - ~3- -T. F T. IS W. _ _ . _ _ __+'k`.. . - ~ ~ pl_~ ~ ~ - L ~ a'~ ~ - ~ ~ ~ . L ~ ~ ~ ~ l • ? ~ ~ ~ ~ y t~ ~ ~C : > '75 )-z_. - - - - . _ . . . ( cl~_ _lol_ (g4, \zs F~a ?-7-5 > ~ - . _ _ _ - - - ~ _ . . _ - - - - - - ~ - _ [lD4'Z`_~ S.~'! 47~ N k3g _ . ° - - ~ - - ; • - - • ~ ~ • ~ . _ . - (.1~-~~ ~ ~-z 5.I?~_ _ ~ l3 ~r~c• (4v.O, } (z,lz f rt•, z~~w~.►~ - ~ - - - - - - - - - • - _ _ ~~~af7~~~~.2`~~ ~I_Z La F'L' (2'lZ F Ty)~ ? I-L f - ; . . . _ .G~:.~p, _ R_'~3~•~•~.3_~,.~..~ ._5 i-`_ia^ .'~'T~ . . V-T~ (:z - Z F'[Z~1I F-r ? e . - - - _ , _ _ _ . - - - ?'1~. ~ Zi"~ ~ (3z, 0 f -c~' 1`l~ - - , . - , _ ~ _ ~ ~ ~ _ ~ ~ . ~ _ ~ z~ " - - - - - - - ~-~ti~ - ' 3 ~ 7-3~ e , - - -~"!_t~_t~.~t~~__-~~s~ .1'`~ ~~~,~-~►vN _-rt~~J~~ cP~L- cu~~~ toR~ B~M1 - 0 N-T._~ [7F~ACa~c. ~ ~A~F.►~~~~~ - - - - ~ -i - . _ ~ ~~i ~ ~-_l :~1. ~ ~ ~ , ; - - - - - - - - - - - - - - - - - - _ - ~ RATIQNAL FORMULA HYDR[7LOGY L}iTE 7/ 1/ 9"j DESI CiNER = F: W i`1Ch'II.JI..k: I IV BA5 IN "E " PRC].TECT NaME = h1I DI LL7MC EAST 15T ADDIT T QN DESGR I PTI ON = 5T IRMWRTER DFR I NAGE SUBAREA 1= 1.48 AGRES SUBphEA 1R1..1NOFF COEFF ICI ENT = .9 5UBAF:EA i = 2.7 ACRES SLfBFiREA 2 RLJNOFF C[3EFF ICI ENT = . 1 "i TOTRL RREA = 4.19 A['F"iES CO1'°iPOa ITE RlJNC7FF CC1EFFT G TEN`C = .415550239234 C6VEFrLAND F=1L.DW VHLUES G t ~ .15 L 0 N C~ ~ 5 - .01 GhdAFVNEL FLOW UALUE i L = 914 Z1 = 5.4 'L 2 5.4 IV - . 03 b C' a = ,C) 13, TL] = .611 CC71"IF'LlTLD VALUC.a . L7l.J R = 6.02 110 - 2.94 Co 10 = 5.51 A - 5 . 1 C~ . ~ . EtOWSTRI N(s' CAL..Cl.1LA,f IC33NS • L3ATi E = e I:x11'95 I3ESIGNEF2 = k: W I`1C1"]LILKdN BflaIfti "E" F'R{7JECT NAME =MID ILOME EAST I 5T AI]D x 7 I C71V DESLR IPT I DN =ST TRMWRTER bRA I NAGE t t Inkensa.ty Qdev. Van VOut Strarrige fmzrt. l (sec. ) ta.n./hr. l Lc.f.s. f (CU. ft. ) ~cU. ft. ) (cU. ft. ) 5. C) 300 3.18 5. 152 2 2 21 1 60„a 162- f 6.0 7%61 2.94 5R 11 2474 7i2 17-52 10.0 600 2.24 . 89 2812 1200 1 C] 1t: 15E0 1700 1R 77 i.07 Z144 1eoo 17,44 20. c) 1200 1.45 2. 52 :371ai 2.400 9:171 25.0 1500 1.21 2. IC) ,413 .3Ci0Cs 411 :~Q . 0 1 E300 1 . Ca4 1. E31 347Z~ 3600 -127 75.0 2100 .91 1.58 71513. 4200 -687 40. 0 24{,)C) 82 1.42 359-l.. 4800 -1 207 i 45.0 2700 . JT 1.2T L OiC7 J41.+0 - S'7` 50. C) 31000 .68 1.18 368B 6000 -2312 55.0 3300 .64 1.11 6600 _2795 60. CF 3600 .61 1.06 .m944 7200 -71'-~ 5; Ea 65.0 3900 .60 1, CYL 4158 1800 - tib+`}2 70. i 1 4200 .58 1. 01 4355 8400 --~4045 7Ja C) 41500 .56 • 76 4456 9000 -4544 B43. C! 48O[ 1 . ati, .92 4572 9600 - i0ta8 E35. 0 5100 .52 .89 4672 10200 -5528 - 90. c~i 5400 50 oBT 4796 1CsBCxi i -6004 95.0 5700 .49 .85 4956 1 14Cfo --6444 I L_YCj, 0 6I100 . 4E3 • 83 5 105 11CIOC7 -6895 THE MAXX MUM STflF►AGE IS 17,5I 6 7614Cr24` G11. FT. ~ 7he t i me ti-f eoncentrati is 6.015987 m1 nutes. The UrrdeVe3 oped f 1 ow out is 2 c. f. s. l-EiV YEf~~ STORi"'1 CALC 1 ~ ~RATrONpL Fnr;MuLa HrDRQLQGY , L7ATE = 802/95 £tiESIGIVEFi = h; W I"1CIrIULitiIN BASSh3 '~C" ?P>YT-) - F'RCI.7ECT NRME MI T) T LC#f"iE EAST 1 a7 FiDDT T T ClN DEScRIF'-r a. aN = SI-ORMwATER DRA z NAGE Si.lBFiRE-I"'i 1 = .12 F1CC ES SiJBF1131m.A 1 FiLfiVOFF C[]EFF], CI EN`rt ~ .9 TOTAL AREA = .12 AGREa CC]i"ll°'C]s1"fE Rl.lNC]FF COEF-F I CIf=i+JT .9 C]VERLRNA FLOW ►JALLIES Ct = .15 t.. _ 32 EV = .016 s Ci:'s CHANIVEL FLOW VA4.UCS L -160 Z1 - -,3 2 2 = . 1. 67 N = .016 B - 0 5 = : 0 0 5 TI.3 - .137 CDMF'UTED WALLJES • I] Ll R - 5. «0 110 ;;.1a L'R Y tJ • ,.ti? Ll. A - .34 cU Y' b 'd ~7 ~.'Ye ► vr ~ ca n Co+n,i1 1\w)l,1 s ~tDvl I,►~+e. ~e-~r P- 551wh oA 'Ltr` ~.Olz ~ro+m l+Co (Q~) ~ V'9. 6-39 "S?a~-ane. Ca~v~ij ~ l_ ~ C~ 1~,~ e~ ~r n,~ St vr- mw iNker Mav. ay.m er\~ A 9~• a 0. 0 q z ti tj ~ . ~ DEPTH OF FLQW - Y - FEET , ~ o ,ai .ax 03 oa os aa oe .ia r' . r x 3 a. s .s j 0 ,9 10 ~ . : . 7~.' •7 '~i , w ~ l~i^I 9 1 I l ~ ~ .s ; ~ ~ ~ ~TI F I t E ' r~-7'~~~.Ia`Y~ La i I . .08 16 ~ i l c y 1 I I ~zuk .06 6 ~ -i-~--~_ L-~--°~ ~ ~ • : IN7 1 I' ' .as • ~ p r~ ~ I 7777 .G4 9I ~ os L ,-F-_~~ • ~ -1_ f ` , .02 . TT I - I I •I I I ~ I f I I i I` I I ~ I ~ I J I I ~ ~ k' [ -17 I~ ro ; l ~ I I ~ I I ( o) 61SGHARGE PER F~~T OF ~ i a LENGTH C7F CURB DPENING ~---t--- ~ -4- -r . I = ~ 1 ~ INLE"1`S 4YHEN lNTEFiCEPTIHG 100°Ja OF Gl1TTER FLUW -OOZ Q (b) PAFiTIAL !NTERCEPTIDN ~ cr f',~ ~ I l i ' •.s ~a RA7iU F{]R INlET5 OF LENGTF9 LESS THAN Lo ~..a ; 7 ~ i Li'f so ~ - - ~ ~ oy Ge .os io .z s a y a s 10 . L/L4 , ~ CAPACITY ❑F CL1RB [?PEdVING IIVLETS i ~ n!V COHTiNl10US GRADE ~ i i ~ I 6-39 F{GURE 66 RF3TI dNAL F'C1Rf9lJLA HYDROLOGY DATE = 8I2I95 DESIGNEFt = k; W NGMULKIN BASIN~E'l PAV"f-;) F'R❑.3ECT IVANE = MIDI LDIIE EAST AST AAD IT I OIV DESCRI PT I QN =ST❑RMWATER DRA I NASE aIJBA-~°.EA 1 = . ~ 2- ACF+Ev SLlBARERi I I;LJI+JCIF= F L~EFiF IC T ENl" = .9 TqTAL AF:EA = .12 FaCRES CO1"IPqS17E ~"i`U4VOFiF GCJEF FICIE!'J'T ~ .9 OVERLAIVD FLC]W VALUES ' Gi: = .15 L - S y N - .0ib 6 . CY77 CHANNEL FLOW VALUES L - SC) Z 1 = ' Z2 .167 ' N - .016 B - Q ~`6 .005 TD = . I aE3 • Cql'°IIPL! TEI} VALUCJ DuFi - 5.00 110 _ 7.. 3. s 03,0 _ .::4 C!A - .34 QVe.tf1►'V\q OJ Y~ C] \r4 ~ C? 1'Vti-i' C)• \2.a~re ~'lew f~ ~ GL ~ v.34 ~~~,e. ~ `~~-to' o~e►i i"3 ~ F'rA7 T 4aiuAl.. FOR3'IULA H't''I]RG]L.[:lla1' UATE =e02195 I]CSYCaIVEFi = F; W' MGMULh;ZN BF~IS lN CE" F'F14+T. F'ROJECT NAf'lE = VITDILC3ME EAS'T 1ST AIJDITTON DESCRIF'TTOhJ = ST[]RP'IWATER DF;A I NAGE '.~-~'UBAREA I=,29 ACRLS Sl1BA-I-'iE€•1 1 F;LJhelCJF=F LOEFFfC:CENT = .9 TO'TAL AkEA = .29 AChkS CC3Mh'OST TE C LINQFF COEFFICIENT ~ .9 OVERLAiVLI 1=LOW VALUES Ct = .15 L T :~C J 0 N .016 S = .025 CHANNEL FLC3W VALUES r t,., _ 570 I 1 = 40 2? _ .167 N - . 016 B i) S - . 017 T D = .142 CC1MPU°T'Eb VALEaEa DLIR _ 5.00 110 ~ a. 18 . 01c) - .83 L-? .83 C) 9 o,~ L o w 'P o'i v\ i ln~ ~ c~.~~' ~~'r~l h~.►~h} op~~wv,~ oc~CS vf -flov~ ~ ~ s.o3 v o°? e'fn i v. ~ f - . M11~~LlDme --T--ADI?_IT[vN_--•~---------~-_ L3,6w_ CAL~~?LA~ w ~ va = - E ....e__`..»__ ~....d~ ~ _.....Y r_._ . . _ - - • - _ - _ w~~.. _ r _ - F 1), c o ~i ~Y - - _ - - ~ , ~t- A~,~~ - . ~ - - - - - - -_-•.4-- •Y-_-r_ ,.,.__t---~- • ` - _ -----__~1_.~~ ~___~~~v~~•--~ vv_ N e - --~,~v~--~~• - - - - -2- QC) o_~~~ ----------~-4- --_~__~Q~.S_~~._ . ~ ~?~D - - - , ttou~~ :zzr_`1`~.~7 0.53 ~ f'~ s -..5~ t`~~ ~ - . ~ _ - ~•1.9 _ _ ~ ' S~ o~ ~•~E ~6tu tRe D • - - - - - - - - - Zp48 4! S~Q~o. C',. Y•- l-b1~, ~~Z. -1~~ ~'N, - - • ' 3-,-7 - _ _ 1'Z, 514./fl, - _ _ - - - - _ - .~----'~--~v~►~~~e~F~cr,re.1--~?+r~we41- ~ - -f-S-T ~~~Gf, TovtivE 'D , F ...~,....a.....~. T "~Y S ■ . m V c5 • 1 5Y ' \ ~ ~ ~ ~ ~ I f ` • - I FtU p± l t1,~, ~ {~G C A L ~ ll 1ly J,`C 4 ~7 i~! ~ 'r+ M 5'[ C~ R A C'~ - - ~ ~i3 P. S F.1 L- F- • ~ ~ C~`'~ . - - - - - _ - _ ~ ~~r ° 4~ s. - rT r , b$' (3'5'.) ~ I 9 5 F 1 16 $ tl,3 = 35 - • ' !_~~.G.~G°1~~~~~~ ~ .F'~ 9 ',Z~ ~'T~ ~ 1' ~S I Y T.3 ° . ~ Y . ~ . . `36,0 . ~ . - - - • - - - ~ L ~ 1 L • ~'I 1 ~ ~ ~ ~ ' ~l F `T ~ . ~ - - _ . _ . . _ . - - . . . _ _ - - - . _ . . _ . 15 ~1•' ~o{) (.3 .55 f 1~) 35 f~ ~ ~ flz.►z = ' a (n) (4~~L - - • - -3Go°~ - ~ . - _ - - ~ - - - - - w _ . _ . . . . _ - - - ~ o ~ bt~~ 1.~_`I S ~T%"~ FT? , v2t. ._.?l7 F~~•-,• _ , ~ L ►n,rt l 0 N 5 T*1) _ _ - - _ - - - ~~W - - - - - - _ - . - ~ - l3t - - ~r~s~.rn~.rnt._...- - . . . - . ` - - - ~ - ~ ` - IQ~-~ - - - • - - ~.~a! • - ~.~a~ _ _ - - ' ' ' ' - _ , - - _ _ - - . ~ ' • - . _ . . . y r i . • • - - _ _ . _ °T VYi11.e-1lJAJ ~TI~`''llJ.~a•- - _ ~ v -.~.s ~ ~ _ j', F' ~ i .rr4 ` 6 6 , 00 rC~ ~ ~ - ~ + ~ r =A a a ' ~ x . t • . t ' FT./F"C, ~-~~~~~!`~T~-~~ d ~ ~ ~~.~~Cle~°~~°?~- y . ~A o,c~o-L vnc- . C ur'v - - - - _ ~-v-~.~'- - - - - ~ ~ . y 4 ~~~~°•5~~~.~.~] ~ ~ ~~~a,~~(~.~~~j ~ F~. ~ $•~.~i0 3.G5 ~ - - ~ p~ - • - p,ct 1 • - ~ _ z- . I,- • . _ _ - - • _ . _ - . . - _ _ _ - ~ ' I{~W ~.'m e.v~t - • • - ~ ~ - - - ~ - - - - ~ ' qr' ~-T- _ f ` q ~ ' 4 . L a " . • ~ • til . . g • ~ a • a ~ ~ ~ t' 7 11 fll :"il • - - - • - i7. ~ 1 ~a ~ F ~ ~ - AJ~t~Tr'~ %~`/.~t7~~'~ti ~j~TI`a j~ " ~ ~ !I d ~ siope .p - 11.16`~~- .a,.._ _.__v__--_ _ - - - - - . - - - - - - C' to~.. -$.5; ~ _ C'C05s 5 ec~ion~l Rre-w pIT ~w alz- - _ - -e ~ ~ -w~~ ~ P ~ - • ' r , . ~ i l l f j _ 0_ ~'.2.cjp ~ C.-I~~~~ ~'~.1~{~.~J~~~.'~,~' ~ ~ :.~'l~.rJ'~1ti.~3} ~ d.5~j ~~•i7' 19 - w~' . • . . _ kb.ib ~.{7C, ary~~~'~ _ . _ . . - - - - - - - - ~ ' 3.55 r ' l~'~1 l L~ v_[`!I ~ _ _F S - ~ ~ . P_t ~ p ~ T ~ v N _ '~N _ I 2, ~ ~ ~ ~ ~"?~-L N ~--_,.~~.~.~._u ~ F,~[ +_~_N . . s - ~ - T a Q- ~~e --~r e~ A,~------ - . . . . ~ ~ ~ " ~ " - - - - - - ~ - - - - - ~ . I • ~ . a S•-a-- - ~ ~ - .6 ~ , . - .i . n l ~ t- ~ Tf I~`~f~'/ wr ' _-_'S ~ a1e.' 5 a~ t om - 6" ~ - _ _ _ e, c. .±.a1n `~-5 _ g ~w `~s~ .~-.1 5 • _ • _ ~.r_~~ ~ _ ° - ~ a. . _ _ _ _ ~.4 1 T _ __'~'~_1\~•`~ •'T q.~` \ A~'__ e~-~- • IZ ~'j`• • ry a ~ - 3 WT1,13 , - R ; fir _ _ -l--- - - ,~_3_. _ _ . _ _ - - - - - - - - - - - - - - , ~ { - - - - . f _ - - - - - - - - - - , - - ` ~ ' - . . - - . - - - - _ - - • - I ~ i ~ RAT;fai'+IAL FGRIYillLA HYDROLOCY L7ATE _ 8I1l95 DE5IGNER = I<; W M[:NIULKIN HASTN "F" F"RCIJECT NAMF =MlDILOMF_ EAST iST ADDITIO1V DESCI; IPT T C]E'J ~ a'i"C1Rh'IWATE-f. DRA I NAC~E SuHAREA 1 = . 5w ACF:~ S SUBAFikA 1 RiJNOFF CC]EFF ICI ENT = .9 SLIBAFiEA 2 .79 AGFiES 5d..lBA1=iEA 2 RUF+iqFF CC]EFFIC: I ENT = . 15 l°OTAL AREA ACRES COMN'L7 S1TE RUNOFF COEFF ICI EiUT = . 4151 1 y6a6;6:; 6 OVERLANI7 FLC1W VALUE5 Ct = .15 . L _ 225 N - ,4 5 . 027 CHr'~-NNEL FL...OW 1aALUEa L. _ 215 L 1 7.3 Zr 8.6 IY i 04'd B 0 S _ . C1C1B TD = .7-56 COC'iFUTEIf 'JALL6Ea DU~'t - 9.1'7 110 - 2..36 7,10 1 41' A - 1. 40 J BOWSl"Fi xNG {:s'-'si...CCJLF3T I CfNS DRTE = 8fI195 T3ESIGIVEFti = K, W MLIhlJLKIhJ BHSIIV ,~F" F`RC1,aECT LVAi"iE = MIT3TLi]f"IE EAST 1ST F3DI3ITIOII ll'EaCfi IPl" I ON _ S7[3'RMWATER I3RA INAGE t t Intensity Cldev. Vis7 Vot-it 5teiraqe (rrars. ) 45eG, D (inv lhr. ) (G.f.s. ) [cu. ft. ) (cu. ft. ) (cu. ft. ) 5. C1 300 71. 1 e 1.69 761 w.L 1c1 461 9.2 ~ JJO 2. .,?p 1.41 1 C) Ll6 550 486 10. Cl 600 .24 1.713 10 5 C} 600 4 15 ci 15.0 900 1.77 1.05 1146 900 246 20. Q 120C.s 1.45 .86 3198 1200 -2 215.C) 15(7jO 1.21 .721 1216 150c) -•:2'e 4 30.0 1 f3Cl0 1.04 . 62- 121 ~ 1 lsi lcl -569 --5. C) 21 [.7[:' .91 .54 1 2G3 21 OC) -E361 40. Cs 244-)Ca , 8~ .49 12637 2400 -11 ,7 45.0 2700 .74 .44 1272 2700 -1428 50, t s :34700 . 6B .40 1291 :%i rC)co -1 709 55.0 71~;00 .64 . 1321 9 300 --197 1 60.0 6 0 aM .61 .=,rS 1~776 3L7`_~Lr -22 2 4 65.0 ,900 .60 . '15 1 440 .e 900 -w-2) 4 5 ? 70.0 4-200 . 5E3 . ~5 1515 4200 6 8a 75.0 4500 .56 . Y:ill 1549 4500 -2951 8C1. C1 4800 I ~,~'i74 4600 ~7.2:: fa ' s5. c) 51 Oc:) . 52 . ~a 1621 53 1 cl c) -4479 90. 54C)0 .50 . ~t=a 1664 5400 - r; 7 3 6 ~ 95.0 5700 .49 29 171B 5 70 C) -3-962 100. rea 6000 .48 .29 1 768 6000 - 4 2 z1':* ' 1"HE MAJC I MUM STOF';AGE T S 4e5.76981142 CtJ. F°d" . . The ti aie of coiicentrat i on a s 9.166201 mi nUte$= l-Fte LJndewel oped f1Ow Cut i s 1 C. f.5. 1"EIU YEAF; STDRM CALG RA7IONAL FORM4.ELA HYDhOLC1GY DATE = 8/ 2I95 DE5 3 GhICR =K~ W MCI"ILJLht I N 8ASIN '_'f= " F`AVTD f'ROJECT NAME = i~ IDIL❑ME EAS7 15T AI3T] T T 1 ON I3E-'"CFi IF'T ZON = STRRMWATEF; L7~'r'AT fVAGE Si,1BA rfiEA 1=. 21 FICC"aL'..°-.'a SLJBAR'EA 1 FtL.INOf'"r F COEF'FI C TEfJT _ . 9 7f.]TFiL AREFs .21 F3CREa CC]hIF'OSY-i-'E FiU1Vt]FF C❑EFFT C T EPI7 = .9 OVERLRIVLI FLLIW VALLJES Ct = .15 - L. - 18 N .016 J - . 028 Cl-°9RN3VEL FLpW VALUES L ~ 208 ' 21 = 36 Z^ = .367 N = .016 Ei - Ci " S - .01 Tn ° . I 4`i COMPUTELY Vr"rtLUES DUR - 5. OC) ' 110 = '3. 1 8 DICr - .6U ClA .60 v- L~~ I7 e p`~1~ ~n~C V~ w~C~-.~r a-§ e.~n~r ~v► ~.e ~ GL -~'o y, 0-Z-z- ~1 h , a I' o ~ Z. ~ 0. GtD ` a 3.a431 (H}~~ 3.48l p.~5)~'~ , V\X ~~r 'o e- f I I - - M\.D_IL.C)C`'~1~ '±ST C M u~. AT l v ioi ~ ~ w . - - - - - - _ - - ~ . ~rZ ~ - - - - _ _ _ _._.._.__r_~_._..~~~_~ ~ I ~ `-t' ~ ~d 5. F~ ~ _ __'t"1`. ~ a~IA~U ~`T , - - • ~ ' `l_~' l..$_~~.~ o~t v _F_'t~~' ~_.3~~_~__A~~_• _ ~ _ _ . _ ~ - - - - . _ , - - .__.e. _F~~~~,~v~-s- "-_4_~ _I3_~~~I_~S__~.___.._~ ~~.~~?"J_ ~'i•. - - _ - - _ _ _ . ~ ~ --_ti.__ _ - - - - . R~.~F-_ ~-Ir+ipE~vti►~~.~_~ _ ~ 2~.~7_~7_~_~.[~~?.~_ = __~I, lC?.~7_~~• ~ D.GI A~ . , ~ I _r4 3 88___ - - - ' ; - S+r i vr F : i ~1~ ---MI~LItC]L~1~_ ~~~i'~IDN - ~ ~ H 'CJ ~ f~. l h1 P G'~ C. A 1.- C L1 hT l o i~ : t'~ W t~ ~lNA1'E 4F~.EI . A:5 10 ~F.V~MF- N-T afzPNtk t L P- 'E~ - - ~--ti-- . _ - - - ~T~ (,q ~a F~`} 9 l ~-s=' ~ -~~,~'--~~C~~-~ ` --_~~~_.F-t~ F~,~ ~ 06 -z-~p Al Z` 23 f I ` `I C~ ~1.~ °3,- F1•~ 1oD FI~ ~l3 ~rI' l~q~ ~I~~ . 1-L4 4 t-tL 5; b VI 3 ~ - - - - ~G~ ~r~~ ~ 4it ~ 344 19 S . _ . . . ~~Q~}~1~5~~ ~ ~~kA__ ~r'[.' {~~~1•~~ 'F"~~~ e -2,-L< f~ 3 . 7- Cl ` - - - - ~ - - - - ~ 3 a ~ F 3 bl F-t . • - - - - ~ - - (DIS , - - - - ' ~ - - - . _ ~ ~711.~ a 6'!1 ~ ~ f'~ y~'C ~ ~'f ~,T} D 1'~C l ~'I~k _ ~ ~ 14 ~ ql5 - --~_._._.--.~------~----------T_.13'-~_~r~5~rn~~,~--~..~~.._.__. ~ - ~ - A,4 - r a`_ ~ -o • - UD • ~1.C7~~~ J~Y• - , r ~ . ;1 , r. . . • ~ ~ , . ~ ~ r 41 FT.- /FT. S ~ l~i ~ e.._~.E 0 ~v,rb _~A•_•---°---••__.--_-~W QA e--'5 t7-t t L3Yh - • - _ -~Di , .~o~ . _ . CrPS~- ~~C'SI~YYIA~. ~Y'~~ G~ ~~0.1~. `+,l,f ~ : • - • _ . r- ~,5~ - - - _ - - ~ - ti ! r ~ _ ~rr~~~ ; , ~ ~Z~`~•~~1~•~~1,~ ~'~,~~~d.-~~~3-~4~-~- 1.`~`~ 'F~ ' _ . _ - _ - ~~'~r__.~___ p _ . . . - - - - I------------ . - - - --~~w - - _ . - ~ - - - - - - ~ o~5~~e..~n - - ~ - - - - - ~ - - r ~ ~ ~ r. ~~-w.,~.,_~'__e.~.~~ w~ ~ ~ ❑ - .I - ~ - a ' [ ' - . 4 , ~ •'q _ + : ' ' ` w ~ ' . a • ~ 9 ' ' ' ' . , ~ ~ ~ ° G < < ° llllil.'rlf:i t T~ . . _ _ I ~ Y I~'! ~ ~.~-1~ ` . . . _ . CJ• I ~ G'] W I A ~~7~"~ ~ - -------_~_r~nc~~ e'Sdo,pv.e__~.___--_..__._ . - - ~5 - - - _ vY__._~_~_~._,..~~`.___=._. ..._..$-5~•.._~- .'~..4.~` •.__,_.,cro5f se-CAsvAaAw Are0. p~ C-+W 0.ke- . 4, . , _ _ , . C~~~~► - _ ~ - ~.a~ ~C`~• • . • • - . •••~....FT . . o;~g•~ .W _ . . _ - ~.55 ` ' RAT IOIAAL FOhIIULA FiYDhOLC]GY Df;TE = 8I1t95 L3E5IGNER = F; W MCMLlLKl.N BASIN "G" F'RO,]ECT NAhiE = MI D I Lah1E EAST 15T RDI? I-rI£3N DEaCR IPT I ON = STORMWATER DRAI NAGE ..~sUBAREA 1=. 4 RCFiEa Sl..lBAF;EA 1 h[.1{VCIFF COEFFI CIEC3T = .9 SL1BAREA 2 = .67 ACREa SUBAREF, ? fiUNOFF GOEFFT C I ENT = .115 ~-OTFi'L. 14REA 1.07 r'aCFiES COMF°'O:alTE RL.8NOFI' CQEFFICIEIVT .1E30.'7387,11 eA' OVEFiLAND FLC]W UALUES G:t = . 1 5) L C+ fV - .016 S ~ .01 rHANr~EL FLuw VnLu~S L - ~,6 5 Ll 7 • .Y , G. .f - e.6 N , 0. t • B - C) " S _ .021 T I] .302 CCJNF"L1TED IJALIJEa C1LJR ~ 5.00 x 1c) - :3. 1e 01 c) - 1. 46 7 (OA = 1.4 BOWSTR I NG GALClJLF,TION5 T3A7E_e/i r95 DE51 GNER =K w McriuLKzlv BRSr IV "G„ PROJECT IVAC'lE = h'1xDILC1ME EAS7' 15T FsDDT TIClN L7G5CRIF'I" T QN =STORi'7UiATER L7F:R iNAGE t t Intensx ty Udev. Vi n VOu~ Strrage (ffflil. ) CSeC. ) (1C1./h1'.) (C.'F. s. ) (Ctl. 'Ft. ) (CU. it. ) (CLt. fL. ) 5. Ca ~S 300 3.18 1.46 589 ::00 2B9 10.0 604 2.24 1 . Ct_, 774 600 124 15.0 900 1.77 .92 1317 900 ~~0:7 20, 1200 1.45 . fa7• 869 1200 7-7111 215. 0 1500 1.21 :i6 39:~ 1500 --607 30.0 1GOC1 1.04 .48 911 1eoo -889 35.0 ? 1 cic:i .91 . 42 1 C}t=s ° 1 177 40.0 42 40 C'+ . B2 .38 945 2400 -14 55 45.0 2700 .74 . . i~ 9 5 15 2700 -1745 50.0 3000 .6s . 3, 1 971 ,.i000 -2029 55.0 ~.'_+CIC] .64 .29 1003 3 30 CI --2291 60. C} --600 .61 .28 1040 '6 Cltj -2560 65. s y 9 c_) .60 .27 1 097 3900 -280; 70. Cr 4200 ,5B .27 1 149 420 Cr -71051 75. C) 430I_1 . JG] .26 1176 4,-C.F00 -i3 2 4 HC1. G 4804.~ . 5,3 .24 1196 480C.P -7604 85.0 5,100 .52 .24 12:1', tF 5100 - ;8bb 90.0 5400 .50 . 2s 1267 15400 -41 :77~ ~'15.0 5700 .49 .23 1309 5700 -4391 100.0 6Cy00 .48 . 22 1349 6000 P4651 l"HE MF#X IMlJM STOCAGE I5 288. 6e478 CU. FT. , * The t ime Qf cnncentratican is 5 asx rrutes. The UndeveIoped flOw raLtk Xs 1C.f.S. TEN YEAR 5`FC]RM GALC. RAT I CJIVAL FOlRl"!IJl,..A HYDF:C1LC1GY DATE _af2195 DESIGNER = 11: 4J MC141i~LKIN Dr^~-STN "G„ F'AV7~." ~'~'F;p,7EC'T NAh7E = MI1JILql'1G EAST 15T AT3L3ZTION bESCR I PT ION =STC]RMWATER URA I NF#GE SLJBAREA 1=. 1 1 ACFrE:, SI.JBAF,CA 1R1JNC7FF COEFF" x C XEP+IT = .9 , TL1TCwL AREF'i = .11 ACREa C❑Ml='C7Sx l"E RLENOFF CCIEFF T C I EN°f ~ ,`3 OVEFCLAND FL,qW WALUES Ct = .15 L 18 N .016 - S ° .029 CHFINIVEL FLOW VAL.LJES L 144 Zf = '6 Z2 = .3.67 N = . 016 P = C' a - . Csib TD = .096 CC]MF'UTEA VALIJ~S DiJF; - 5.00 110 = 3. 18 D1' C1 ,.i 1 OA - . i ? Cux6 D$ e.Y1►1r15 o.i L'b W 1 DT1 ~AA- V\ x []M1l r- D. (.-lI J t~ ~~yo ~ kt c~ 1 z. 0.096 ' -r I o w c-,* e v~-~ ~+n c~ Q - 0.32- cis v"Xke. g h In o~1 3/, ~ 3.~9 RATI O1'+iAL FpRIIIJLA H{DF:OLL]GY - L7A"fE = 8I2/95 T3ESIGluEF'i = h, W h'I[jMULK1N Ph1SIIV "G" PAVF,,) F'd°tOJEGT IVAME MI flILC3ME ERST IS1` AD3] I T IOna BESCf; IPT I QN = STORMUJATER DRAT NAGE vuBAREA 1=. 1 AGF:Ea Sl..lBAF:EA 1RUNOFF E.:iJEFFT C I ENT = .-~"i TOTRL AREA = .1 AC1=iES CCiMF`Cla ITE FiL1NQFF CC1EFF ICIENT = .9 C3VE~':LAiVX1 FL04J VALLJES C t .15 L - 1 E3 N - . 016 5 . 028 - CHF;NfJCL FL04V VAL..LJES L - 2 2 f i .'L 1 - 6 , 72 = .167 IV - .016 B = i r Ei - .018 rD ~ . 09s c~MPurED vALUES - r ~UR _ 5. 00 110 - 1 e D1c' _ .~9 QF; _ . 2-8 V% v► e. ~ ~ ~01'DeYiln o~ e s i l_~ ~ig, 1~ (a~ ~ P5• ~~o~w~.~, ~vun~~ ~~~~el~ne_ , BlS C DEP7Ff OF FL(]W - }r - FEET , .or ax .os .as as fls ae r .z a a 6 7 .e 9 10 : V ~~r~~~; 1 , • I I ' i~~ . - T F . i , , s ~ T ~ 7 . 44 ~ l+ ..1... -177 I i i • .3 ~ I ; T-t- ~ ~ 'Qn La 0~g.~~`~ ~ I I ' ~ t>. .as ~ t I I ; I T- i ~ ns ; . 1 7 ~ I--~~--~ ~ T~•-~~--6- 1--~- i , r aa fl I i E 1 I r~l ~ l l~,.ll f 1~1 I A~ I i` ~ i~ { 4 i I 10 I I I B ~ I~ + 015CHARGE PER FC70T OF ~ i a!y LEA(G7H OF CURB aPENIiVG 4, ENLE7S WHEN 4NTEFtCEPTING d ~ s IOD°Co OF {`aUTTER F'LOW 4 ; - ~ ~ Q (b] PARSIAL iNTERCEATION ~❑fo" _4- RAT1O FQR I N LETS [3F LENG7H LESS 7HAN L I i i a r~ ~ 001- 16 - ~ . y ~:T ~ • i i ~ ~ ~ ` ~ ~ao . . ,05 .06 OB Vd 2 3 ,N .9 6 .B I.0 • ' L/La . CAPACITY dF CURB UPENING INLETS ; I](V CONT1N4,fOIJS GRADE ~ 6-39 FCGIJRE Ifi ~ ~ ,v~, _ - _ ~~.i~1~G_~_..__C..►?~.~_~; l]_L_~Y 4 _ _ -~=-~°'-t-~`._'! -A-'l - - - ~ ~ ~ . L} ~ I ~ _,_t ~ ~3 ❑ F ~ ~ ~J _ _ - _ _ ' v u Q ~v F- V~vI busz,0 oQ_.=_~~,~~~ ._LBA - - - - _ ~ _ _ ~ . - - - - . _ _ _ - - ~ ~ ~Ta~AG~ ~EQu1~~D: - . _ . _ _ . - - - -►,~y-► ~ : - - - - - - r w ~ s 7- 1. - - - ~ - irh: -3-- - - &OW 5~rirh~~~ e r3,raEe ~ -~0 N5 I'T • ~Z -G"~S-' vV~~-~ ~ _ ~ - - ~ - . . - - - - ~ I~ -F ~ ~ - ~ ~ ~ 1 ~ - - - - - - - ~ ~ F~ ~.____.~`'~~.~►?_IU.dC~t~_ _'~f=` ~ ~`'17_L'_~"C tiC~ [a _ . . ~ - - ~7[~P•lNf~+~E CP.I-Gl]l-h~ ta1~1~ t, lLF~F- _-_~~~'_}[~$'1~~. _ "z~ ~~~')~1.~~~~.'y` ll~ - - - - - - - - - - ~ .'ak~_~ - } ~ ~t~ F-~.~ ~C~~'~C ~ ~T w~ = It~ ~ - _ . - ,~w. ~ F~. Gv t. > , , ~ ~ ...Y _ ~ } ~ ' ' ~ ~ F"~~ ~3 ~~C-~ ~ ~ ~ l•~ ' lI~ ~r~•' - - --1~~°-~ ~~~~1~----~ ~T~ - - - - - ~ _ 3~~ ~ G~~ F-~•" ~ _ - - - - - - ~ - ~ ~ ~ 4 ~ . - . - - _ . - - . t~,z~~..~rt~ . . G.~`l. FY~ y`~ _ . : . . - - - - - - ~ - - - orA.~ 17C~~kti~G~ cuL k-rtOtvs (Kwr+~ - - - _ T - - - '~,~W - - _ . _ _ _ . - _ - - - - - - - - - 1~`- - - ' o.s yy\ e.ht ~o~--~~-- ~ - - - , - . _ _ 27Tir.~~ra.,`d,~,q aO~~_ • I 1~ " ~ ,Y ~ . F T. yv~~,~ l~~T, p.l~"13~~ ~~o,l~ S'~~' C.v~,C. C ..s~r ~,r~ ~ SwwOe. 'Svttam - ~ 0•5) C4 .21 o.(3.~4~ 1~~- ~ 0.cA I - - - r~ ~ • - e . . - - - - a•I ~ - ` . _ - - - - - -I ~ - . _ - . ~f~c ~ - . . - - - _ . - -r - - - ~ - _ 1 C]~ _ ...e__ _ ~ . . . ~ . '~O . 5, . _ _ _ -s l. ~ _ - - - - ~ _ ~ ~~"•~x~~-~~ ~ cs~~~ - ❑.[)46 ~ . 4 S . i ' v _ r ' ' ~i . . . • a • ' S n ' . e iii!!l~f~r~ lir.~ ` - - ~ ~r~7 ~~•1~ ~~~'"r.~7r--,~.-j ~ ~ ~ 4 f~~~ ~ ~ ~ ~W,11 . e 5lTD. _ _ - _g r ~ - - ~ ~L cohc. Pz Sw0,l~ tC.u~\C' -'D~----._.. ._..-~5 .5~ _ Cr 0 5'5- S Eetst7r%w~ ,Arec, - , , . ~ S,5 . _ __.,.a ~ . _ . • - . . ~ . _ , D ~.~.`l _ ~s° _ x•`k~/ ~ L'~.5~ ~~.'Z~i~ ~ l i~ ~ ~ 1.~4 ~ ~ p. 5~ ~ 4 .o' ~y ` 1,01 ❑.~b ~..[av B ~ . 1 ~ ~T ~i . • ~r,y°"~~' - - - - - • - • - y - ~ ~ ' ~ ~ ~ Z - p, . . f ,j' Nv. tAkpk.~[)M~, eA.ST t l>t`C1 10 l4 taM~s - - - - - - - - - - YP - `Co p o~ ~p+~'►~r a~ ~ a~zo s00 rs ' 4 • Y ~ r -I~ - G . . • . , •ilil~,h..li~~'• • - _ _ • ' . + ° 4 . . . T - • ~T.~~~ ~ - ~ ~~.4~~• ~ 0nd 1a _w _ C.Y'aSS-- Se-c7C, cav+c.1 f'~v e- A ot S Wo, . . _ • _ _ - • . - t,._co_5,• ° ~ ~ o 1 r 00 2.~g~ _ ~7.~ ~n_~"~~Z.~°$~ d ~r1~~~0._.~.'~{Z•G~i 1.:'~ -p ` ►S' - ° v. ~ - 1~ - - " - - --T_.._ s r _ - - - - - - - ~ - - • - U. ~ . _ ' ~R D~ --aa ------._.~_____~...T . • . - • ` - • • - - ° • ' - r - - - - - - - - - - - - - - - - - - - ~ 1w _ _ - - - - ~~.p - r ~.w~.~~.~~ ~ v' - ~ T -I - u5.25~-_•-_ - F--~- ~ ~ . _ _ ° _ ,~o? of Dr'rve.grlaj - , - s r... ~ ~~I_..~.-~ ` w . ~ - . s - - • ~ _ . .~__..Y.._._~..,_..e_~_.~._-'~'~4 • . . . i . i e , c ♦ ~ 'S ' ' ' ' ` ' ' . . ••.._._.._.Q_Z.z.ti Dy~.._•--~ - _ . _v_.____.____ . . - - - - 5WaA~., $a-k -t Om•_ - - . . • - - .~vnG• r~ ~ . - - ~ - - - - - - - - - - - - - - - - - - , 5,2 5 5a~ S_~c-~-►~s~~~-r\r-e- -00 ~ `-a . • ; ~ . .._._-v•_--_•~-- _ 2.25 2.Z5 • _ _ _ - • R ~2~ - ~ „v..~_ ~ -•-1~~~~,~'~~Z.~.S~ ~a.5~~~~~ ~ . . . ~ . ~ n` ~ _ - • . D, ~.op _ . _ 4•1~a _ _ . - - - - - - - - - - - _ - ~ _ - - - - - - - - - - - Z . ~Z ~"i. RA7IR6qAL FDRMULA HYDROLOGY DATE = R/1f95 ~ DESTGNEFi = k; W h1C1`IULKT3V- PASIN "H" F'RQs7ECS NAh1E = M1DILD!°IE EA57 1ST F3DDiTTON DESCRT PT I QN = STORMWATER DRR TNRGE ' SUBAREA 1=. 75 ACRES SUBAREA I f;UNCIFl= C[7EFF 1C.C I:.IVT = .9 SUBAREA 2= 1.81 RCRES SUBAREA 2 RLJNUFF CQEFF ICIEhJT = .15 TOTAL AREA = ',,F6 WCRES CQM1 'DS1 TE l;UNE~FF CpEFF I C I Eh#T = .369726562-5 OVERLAND FLOW VALUES C: t .15 L - C' N - .4 S - .Cil ' CHANIVEL FLOW VALL1ES L - 660 Z1 = 7.:3 ZZ = 0.6 IV 0Z B ~P S C11..I TD _ .419 C❑f3F'UTED VRLtJES I]UF; = 5.17 _LIC~___ = . 7 . 14 b 1 ci = ?.97 ~C?A - ~ . 97 BowsTRTNG caLcuLaTx~~S DATE = 811195 ~ 17E aTGNER = f` W IICI`7ULk:1hE`_• BA5TiV "1„i" F''-~'eQ.3ECT NA`'I'IE = l`1TI7ILC7!°lE EA:-"aT I,'.ri" ABL3IT'IC1N AESCRI F'l" I DN =STDRMWATER DFtA I IVAGE t t Fnterrosa.ty Odev. Vin VOLtt 5tarage (mira. ) ISec. J (in. Ahr. ) (c.f-.s. ) (CLa. ft. ) Ceu, +t. ) (eu. -Ft. ) 5.0 7100 3.18 :.0 k 121 C) 600 61 CF 5.2 ~ 7.10 71.14 2. `r7 1276 620 615 iCj.Cr 600 2.24 2.12 1496 l21 s:) 0 296 15,0 900 1077 1.68 1684 1800 -116 2rs . 1200 1.45 1 .37 1792 2400 -608 25.0 1500 1.21 1.15 IE3-R~+i r~c) C) C) -11 fa 1 :~NO.SY 1 $[]fl 1. 04 .96 l~76 ,600 °1724 5j. 0 2100 .91 . e6 1900 4200 °~71 0 Cf 40, Cs 2400 .82 .78 1945 4800 -2, 0 5 5 45•0 2700 e74 .70 17675 541.+0 -3,43J 5,L). # Y 30[Y(4 .68 .64 1999 6CiCiC1 -4001 55.0 -37100 .64 .61 206' iubU0 -4537 60. 0 3600 .61 .58 2 1319 7200 -5061 'u15. 0 71900 .60 .156 2-256 7800 -5544 70.0 4200 - .58 .55 2364 E34(-) ---60u6 75.0 4500 .56 . ; 2419 9000 -6581 8C), t:a 48nCi .57 . at:t 2463 96cr(;) -71 :;9 85. C) 5100 .52 .49 2-1 5 3 t 10200 -766-3 90. C) 5400 .50 .47 2 6 C) 5 1oat„zo -8195 95.0 5700 .49 .46 2692 11400 -8706 100. C) 6000 .48 . 4 5 2774 12000 --9226 THE MAXIMLJM STaF;AGE I5 61 5. 19564845 CU. FT. ~ 1'he ti nre a•F concentrati on a s 5. 17021 2 mi nutes. The Undevel o~ed f 1ow aut i s c.+. s. TEN YEAF: STQRM ZALC. • FiF's`fIONAl,.. FOF{M[JLA HYI7Ri1LOCY L}ATE = E3f 2I95 DES I GNER = k; W MCIv1ULKI N BHSI IV CH" F`AVT-: F'~OJECT IVHME = MI DI L.OI'1L EA5T 1 ST ADDI T I []N DESCF;IPTIDN = ST[JRh1WATER I3RAINA.C'.~E SLJBAREA 1~.:W-: i ACFiL.J SLJBAREA 1 RLkIVC]F'F CCJEFF ICILNT = .9 TDTpL AF:EA _ .25 ACRES GOMF'C1S T 7E RUNOFF CiClEFF X CI ENT = .9 OVE~`n`LA1Vr? FLC1W VAl..L1ES Ct = .15 L - 10 N = .016 5 028 CHANfVEL FLOW VALLJES L - 526 , Z1 = 76 Z.^ = .167 RI - .016 B - 0 s - , C,le TD _ ,13S4 Ci7MF'LJTED tlALL1E5 ' 3]l.1Fr - 5. 00 110 - 3. 18 Gt 1 C) - .72 LaA - .72 b C] ~ e.. tin i vr 5 a.A- rr~ ~ c~'~ n~ C•~-. C'~ ~[3 n'~t a~ c~ 5~' 1n -z z o , ~ ~ ' ~C n-t ~,t 1~, ► 91n~ a f o ?e ►n"%V\ °J +l~ z 0.14' ~ o ~ ~,r~ ~,r aLi 0.12 G~S 3/, ~z -3.081 (L)(li) 0,7-1 C l 3~ z z C. kAr\> ~e-vn v► g i 5' vv ► ~e. lop'y d~ e. ~ RRTTONAL FDRlIULA HYDROLOGY DATE = BI 2f 95 ClCa I GNEh = t: W MCMULf; I N EtAS I hi "H " F'AVT~ F"RDJECT NAME = h1I D7: LGIME EAST 15T RDDi T T L71V I]ESGRI F'T I DIV = STORMWATER DRAINAGE SIJBAFiEA 1 .1 F1GFiES SiJBRREA 1RUl`JC1FF CG1EFF I C], EddT = .9 TC]TAL F,REA w .1 AGRES CC]MPQST TE RUNDFF Gi:JEFF IC I ENT = .9 ' f:3VERLA1VD FLDW VALUES Ct M .15 L - 7.2 N = .016 ~CHANNLL 1=LOW VRLLIES - L = 112 T 1 = -,3 Z2 = .167 N - .016 - ~-a - S .005 rD = .i29 COMPUTED WALuES DuR - 5. 00 110 ~ i, s 01cr - .29 G!~r - .29 l ] ~V . ~ V~~f''~ ~~~v~~ +n~ q~ (7 Y► cc~ v►°~t i vr u v al s 6~' ~aes7e. [ l3Z. ~ D 0. y ~j b. CD, z 0.~'9 c.i s lo vu 0.ob1 ~royn L~ (ck) (O-39 `t SPokaAe Cf,)uAij . L a, ~v r ra r m w~~[ e.r [*~1 a v~ ~ e v~ t GL 'Z ~5~ : 1 ~ C.u~~lr~ ~v►lew'r ~ ~i'~P'~ ~ 4r`-d" a~~u~;n~ ~ DEQTH QF FLOkV - y - FEET , .aa .nz rrs a. ae ae aa .Ea z 3 s 6 .7 e.9 +a r . . r 'g I 177 i `1- .5 ~ ~ 1..- .r..~ ..4...~. ~.~.1 ~ ~r 1_"~"" _.L 4-4 - ~ 4 ,4 a olf r ~ ~ -T- + La iey .ae I r+ I+~~ ' I r p; .03 Ik ; ol~ J~ J" { 1 l I~ f 1 Y I I 1 ~ ] ~ I ~ 4 ~ ~ 1 I I i .01 6 4 1 + 1B , 4 I ~ 4 3, d a] OISCHARGE PER FDOT 0F a/v LENG7H DF GUR13 OPENING 40 fNLETS WHEN 6[►ETEFtCEPT1h1G •3 ; 1(70°Ia C7F GUTTER FLOW • 1 l l y { (b) PARTIAL 6NTERCEPTf()N RATIO FUR INLETS OF - - -~-~-•i - t ~ LENG79i L.ESS THAN Lm 00" ~ ~ i ; 10 05 .06 .0~ l0 - 2 .3 4 .3 .6 .8 1.0 • ~ _ L - i /L0 CAPAC17Y ❑F CL9RB DPEN1NCa 1Ni.ETS DEV CJNTINIJOUS GRAnE ~I I . 6-39 FrGLlRE 16 " • „ ~"~...m. , , , - - _ ~ ^ Midilarne East 1 st Addition Drainage Calculations BASTN "H" C3ffsite Area Tota1= A-rea Grass =258,13C1 sq. Ft 5.32 acres The ltatianal Methad is typicalty used for determining runoff rates ~ as' f] acres or less in size. Hcawever, the S .C.S. Quick T.R.-55 Method aJong with a rauting camputata w an order to calcuiate the valume Qt starage required vvith +outflaw only through the native snil The affs'rte basin area is 5.92 acres. This number was m pl` factnr of 10 to increase the basin size t❑ 59.2 acres 10 acres). The S C.S. Quick I'.R.-55 lViet d en used to calculate the tabular hydrograph of the 59.2 acre basin, which resulied in a peak disch e cfs The hydragraph was then rnuliiplied by a constant of 0.1 which reduced the hydrogra to r r en he original 5 92 acre basin. 'X'his resulted in a peak discharge of 2 00 cfs. A reuting computaCirrn was theh made. e 0 1 in.lhr. per sq. ft. was used for the soil outflow. This is a conservative value. The manual "S u r Spo'kane Cvunty, WashingtQn" by che L1.S.D.A, Soi! Consea`vation Service, indicates t t oii, GmB, has a perrmeability between 2.5 in Ihr. and 5.0 tn Ihr ~ 5'FC7RAGE REUUTRED• ~ Volume = 4,021 cu. Ft. STORACYE PROVTDE~ - Construct earth ber ound offsite pond with top 4fberni at elevatiQn 2427 0. The pond is caga e of storing 14,067 cu. ft. ofwater ta eleuatian 2027.0. Calculatians indicafie the stnrmwater will reach a pe volurne 0f 4,021 cu. ft at elevation 2026.07 Therefore, adequate starage is pravided , , PaND-2 Version: 5.15 S/N: 1295160123 ° Page 6 EXECUTED: 09-22-1995 I1:37.56 SUMMARY OF ROUTING COMPUTAfiIONS Pond File: Ct/PQNDPACK\ME111 PND Inflow Hydrograph: C:\PONDPAGI<1ME1 HYD Dutflow Hydrograph: C.\PONDPACK\ME1H HYD starting Pvnd W.S. Elevation ~ 2025.00 ft Summary of Peak Outflnw and Peak E1evation Peak Tnf1aw - 2.00 cfs Peak Outflow ~ 0.12 cfs Peak Elevatiara = 2026.07 ft Summary of Approximate Peak Strrraqe Initial Storage - 0 cu-ft Peak Storage Fram 5torm = 4,021 cu-ft Total Storage in Pand = 4,021 cu-~ft Waxning, initial pand outflow > lst inflow Qrdinate. <<<<< i POND-2 Version. 5.15 S/N: 1295160123 Page 7 Pond FiYe. C:\PONDPACK\MElH PNa Inflow Hydragraph: C.1P❑NDFACKrME1 HYD - Outflow Hydrograph: C:\PONdPACK1ME1H HYD EXECUTED: 09°22-1995 Peak Inflow - 2.00 cfs 11:37:56 - Feak Outflaw = 0.12 cfs Peak Elevatian = 2026.07 ft Flow (cfs) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 11.4 ° x X 11.5 - x x 11,6 - x _ x 11.7 x x* 11.8 - x* x 11.9 - x X * 12.0 - ac * x * 12.1 - x * x * 12.2 ~ x * x * 12.3 - x * x * 12,4 - x * x * 12.5 - x * x ~ 12.6 - x ~ x * 12.7 - x ~ X * 12.8 - X * x * 12.9 x ~ , 13.0 - x ~ X ~ 13.3. ~ x * , x * 13.2 - at ~ x * 13.3 - x * TTM£ . (hrs ) * Fi let C;\PQNDPACK\ME1 . HYD QmaX = 2.0 cfs x Fixe: c;\PONDPACx\MElx HYO Qmax _ 0.1 cfs POND-2 Version: 5.15 SfN: 1295160123 Midilome East lst Addition Offsite "H" CALCFJLATEI? 09-22-I995 11:23: 2$ DISK FrLE: c : \PONDPAcx`MEi . vOL Planimeter scale: 1 inch = 50 ft. ~ Elevation Planimeter Area A1+A2+sqr(A].*A2 ) Volume Vo1ume Sum (ft) {sq,in. } (sq.ft) (sq.ft) (cubic-ft) [cubic--ft) 2,02a.Qf] I.00 2,500 0 0 2,025.50 1.44 3,600 9,100 1,517 1,517 2,026.00 1.96 4,900 ]_2,700 2,117 3,533 2,026.50 2,56 6,400 1E,,900 2,817 6,450 2,027.00 3.29 8,100 21,700 3,617 10,067 * Tncreme~ntal voiume computed by the Conic Method for Reservnir Valumes. POND-2 Version: 5.15 5/N: 1295160123 , Fage ~ EXECUTEa: 09-22-1995 11:37:55 * Midilome East Ist Addition * * • Offsite "HI: * * Qutflow through GmH at 111/hr. per sq. ft. _.0Q0023 cfs ~ sq. ft * * ~r Fnflaw Hydrograph: C:/PQNDPE'1GK\ME1 HYD Rating Table file: C:\PONDPAGK\MEIH PND -___xNI7;"TAL CO1dDITIDNS_--_ Elevatiora = 2025.00 ft OutfZow - 0.06 cfs Storage - 0 cu-ft INTERMEDIA'I'E ROUTTNG GI`L7EN POND DATA COMF'UTATIONS ELEVA°I'IQN CJLITFL06t1 ST{}RAGE 2S ft 2S/t + 0 (ft) (cfs) {cu-ft) (cfs) {cfs) --_--------w_- 2025.00 0.1 0 o.❑ ' 0.1 2025.50 0.1 1,517 8.4 8.5 2026.00 0.1 3,633 20.2 20.3 2026,50 0.1 6,450 35.8 35.0 2027.00 0.2 10,067 55.9 56.1 Time increment (t) = c].ioa hrs. ~ POND-2 VersiAn. 5.15 S/N: 3295160123 Page 2 ExECUTED: 09-22-1995 11:37:56 Pond File: C:\PONDFACK\MElN PND Inflow Hydrograph; C:\PQNDPACK\ME1 HYD Qutflaw Hydragraph: C.\PONDpACK1ME1H HYD INFLDW HYDR❑GRAPH ROUTING CpMptITATIONS TIME INFLOW I1+12 2S/t - D 25jt + Q DUTFLOW ELEVATIDN (hrs) (cfs) {cfs) (cfs) (cfs) (cfs) (ft) 11.00Q 0.00 -0.1 0.1 0.06 2025.00 11.100 0.00 0.0 -0,1 -0.1 0.00 2025.00 11.200 0.00 0.0 -0.1 -0.1 0.00 2025.00 11.300 ❑.0a 0.0 -0.1 -0,1 0.00 2025.00 11.400 0.00 0.0 -o.i -o.a 0.00 2025.00 11.500 0.00 0.0 r0.1 -0.1 o.oO 2025.00 11.600 0.00 0.0 -0.1 -0.1 0.00 2025.00 11.700 0.00 0.0 y0.1 -0.1 0.00 2025.00 11.800 0.10 0.1 -0.0 0.0 0.04 2025.00 11.900 0.10 0.2 0.0 0.2 0.06 2025.01 32.000 0.40 0.5 0.4 0,5 0.06 2025.03 12.100 1.40 1.8 2.1 2.2 0,06 2025.13 12.200 2.00 3.4 5.3 5.5 0.07 2025.32 12.300 1.50 3.5 8.7 8.8 0.08 2025.51 12,400 0.90 2.4 10.9 11.1 0.09 2025.61 12.500 0.70 1.6 12.3 12.5 0.09 2025.67 12.600 0.60 1.3 13.4 13.6 0.10 2025.72 12.700 0.50 1.1 14,3 14.5 0.10 2025.75 12.800 ❑.40 0.9 15.0 15.2 0.10 2025.78 12.900 0.40 0.8 15.6 15.e 0.10 2025.81 13.000 0.30 0.7 16.1 16.3 0.10 2425.83 13.100 0.30 0.5 16.5 16.7 0.10 2025.85 13.200 0.30 0.6 16.9 17.1 0.10 2025.86 13.300 0.30 0.6 17.3 17.5 0.11 2025.88 13.404 0.30 0.6 17,7 17,9 0.11 2025.90 13.500 0.30 0.6 18.1 18.3• 0.11 2025.91 13.600 0.30 0.6 18.4 18.7 0.11 2025.93 13.700 0.20 6.5 18.7 18.9 0.11 2025.94 13.800 0.20 0.4 18.9 19.1 0.11 2425.95 13.900 0.20 0.4 19.1 19.3 0.11 2025.95 14.000 0.20 0.4 19.3 19.5 0.11 2025.97 14.100 0.20: 0.4 19.4 19.7 0.11 2025.97 14.200 0.20 0.4 19.6 19.8 ❑.11 2025.98 14.300 0.20 0.4 19.8 20,0 0.11 2025.99 14.400 0,20 0.4 20.0 20.2 0.11 2026.00 14.500 0.2o 0,4 20.1 20.4 0.11 2026.00 34.600 0.20 0.4 20.3 20.5 0.11 2026.01 14.700 0.20 0.4 20.5 20.7 0.11 2026.01 14.$00 0.20 0.4 20,7 20.9 0.11 2026.02 14.900 0.20 0.4 20.8 21.1 0.11 2026.02 15.000 0.20 0.4 21.0 21.2 0.12 , 2026.03 15.100 0.20 0.4 21.2 21.4 0.12 2026.03 15.2100 0.20 O:4 21.3 21.6 0.12 2026.04 15.300 0.20 0.4 21.5 21.7 0.12 2026.05 15.400 0.20 0.4 21.7 21.9 0.12 2026.05 POND-2 Version; 5.15 s/N: 1295160123 Page 3 EXECUTED; 09-22-1995 11:37:56 pand File: C:\PDNpPACK\MElH PND Inflmw Hydr4graph: C:\PONDPACK\ME1 HYD Outflow Hydragraph: C;\PONDFACK\ME1H .HYD INFLdW NYDROGI?APH R❑UTING COMPUTATIONS TTME INFLDW 11+12 2Sft - D 2S/t + D ❑UTFLOW ELEVATTON (hrs) (cfs) (Cfs) (cfs) [cfs) (cfs) (ft) 15 . 500 0.20 0.4 21.8 22.1 0.12 2026.06 15.600 0.20 0.4 22.0 22.2 0.12 2026.06 15.700 0.20 0.4 22.2 22.4 0.12 2026.07 15.800 0.10 0.3 22.2 22.5 0.12 2026.07 15.900 0.10 0P2 22.2 e2.4 0.12 2026.07 16.000 0.10 ❑.2 22.2 22,4 0.12 2026.07 16.100 0.10 0.2 22.1 22.4 0.12 2026.07 16.200 0.10 ❑.2 22.1 22.3 0.1e 2De6.0.~.~ 1E.300 0.10 0.2 22.0 22.3 0.12 2026.46 16.400 0.10 0.2 22.0 22.2 0.12 2026.06 16.500 0.10 0.2 22.0 22.2 0.12 2026.06 15.500 0.10 0.2 21,9 22.2 6.12 2026.06 1E.700 0.10 0.2 21.9 22.1 0.12 2026.06 16.8013 0.10 0.2 21.9 22.1 0.12 2026.0E 16.900 0.10 0.2 21.8 22.1 0.12 2026.06 17.000 0.10 0.2 21.8 22.0 0.12 2026.06 17.100 0.10 0.2 21.8 22.0 0.12 2026.05 17.200 0.10 0.2 21.7 22.0 (].12 2{]26.05 17.300 0.10 0.2 21.7 21.9 0.12 2026,05 17.400 0.10 o.2 21.7 21.9 0.12 2026.05 17.500 0.1(} 0.2 21.5 21.9 0.12 2026.05 17.600 0.10 0.2 21.6 21.5 0.12 2025.05 17.700 0.10 C1.2 21.6 21.8 0.12 2026.05 17.800 0.10 J 0.2 21,5 21.8 0.12 2026.05 17.900 0.10 0.2 21.5 21.7 0.12 2026.05 18.000 0.10 0.2 21.5 21.7 0.12 2026.05 18.100 0.10 0.2 21.4 21.7 0.12 2026.04 18.200 0.10 0.2 21.4 21.6 0.12 2026,04 18.300 0.10 0.2 21.4 21.6 0.12 2[}26.04 - 18,400 0.10 0.2 21.4 21.6 0.12 2026.04 18.500 0.20 0,2 21.3 21.5. 0.12 2026.04 18.600 (].10 0.2 21.3 21.5 0.12 2026.04 18.700 0.10 0.2 21.3 21.5 0.12 2026.04 18.80(} 0.10 0.2 21.2 21.5 0,12 2026.04 18.900 0,10 0.2 21.2 21.4 0,12 2026.04 7,9.000 0.10 0.2 21.2 21.4 [}.12 2626.03 19.100 0.10 0.2 21.1 21,4 0.12 2026.03 19. 200 0. 10 0.2 21.1 21.3 0.12 2026.03 19,30[] 0.10 0.2 21.1 21.3 0.12 2426.03 19.400 0.10 0.2 21.0 21.3 0.12 2026.03 19.500 0.10 0.2 21.0 21.2 0.12 2026.03 19.600 0.10 0.2 21.0 21.2 0.12 2026.03 19.704 0.10 0.2 21,0 21.2 0.11 2026.03 19.8D0 0.10 0.2 2(],9 21.2 0.11 2026.03 19.900 0.10 0.2 20.9 21.1 0.11 2026.03 20.000 0.10 0.2 20.9 21.1 0.11 2026.03 PaND-2 Version: 5.15 s/N: 1295160123 Page 4 EXECUTED: 09R22-1995 11:37.56 Pond Fiie: C:\PQNDPACK\ME1H PNo - Inflow HydrQgraph: C:rpONDPACKtME1 HY❑ outflow Hydrograph: C:\pdNDPACK/ME1H NYp INFLOW HYDROGRAPH RQUTTNG COMPUTATIONS TTME TNFLOW II+12 2Sft - ❑ 25/t + ❑ OUTFLOW ELEVAmYdN (hrs) (cfs) (cfs) (cfs) (cfs) (cfs) (ft) a0.1oa 0.10 0.2 20.8 21.1 0.11 2026.02 20.200 0.10 0.2 20.8 21.0 0.11 2026.02 20.300 0.10 ❑.2 20.8 21.0 0.11 2026.02 20.400 0.10 0,2 20.7 21.0 0.11 2026.02 20.500 0.10 0.2 20.7 24.9 0.11 2026.02 20.600 0.1D 0.2 20.7 20.9 ❑,11 2026.02 20.700 0.10 0.2 20.7 20.9 0,11 2026.02 20.800 0.10 . 0.2 20.6 20.9 0,11 2026.02 20.900 0.10 4.2 20.6 20.8 0.11 2026.02 21.000 ❑.1o 0.2 20,6 20.$ 0.11 2026.02 21.100 ; 0.10 0.2 20.5 aa.s 0.11 2026.02 21.200 0.10 0.2 20.5 20.7 o,11 2026.01 21.300 0.10 0.2 20.5 20.7 0.11 2026.01 21,400 0,10 0.2 20.5 20.7 0.11 2026.01 21.500 0.10 0.2 20.4 20.7 0.11 2026.01 21.600 0.10 0.2 20.4 20.6 0.11 2026.01 21.700 0.10 0.2 20.4 20.6 ❑.11 2026.01 21.800 0.1D 0.2 20.4 20.6 0.11 2026.01 21.900 0.10 0.2 20.3 20.6 0.11 2026.01 22.000 0.10 0.2 20.3 20,5 0.11 2026.01 ' 22.100 0.10 0.2 20.3 20.5 0.11 2026.01 22.200 0.10 o.2 20.2 20.5 0.11 2026.01 22.300 0.10 0,2 20.2 20.4 ❑.11 2026.00 22.400 0.10 6.2 20,2 20.4 0.11 2026.00 22.500 0.10 0.2 20.2 20.4 0.11 2026.00 22.500 0,10 0.2 20.1 20.4 0.11 2026.00 22.700 0.10 0.2 20.1 20.3 0.11 2026.00 22.800 0.10 0.2 20.1 20.3 0.11 2026.00 22.900 0.10 o.2 20.1 20.3 0.11 2026.00 23.000 0.10 0.2 20.0 20.3 0.11 2026.00 23.100 0.10 0.2 20.0 24.2 0.11 2026.00 23,200 0.10 0.2 20.0 20.2 0.11 2026.00 23.300 4.10 0.2 20.0 20.2 0.11 2026.00 23.400 0.10 0.2 19.9 20.2 0.11 2D25.99 23.500 0.14 o.2 19.9 20.1 0.11 2425.99 23.600 0.10 4.2 19.9 20.1 0.11 2025.99 23.700 0,10 0.2 19.9 20.1 0.11 2025.99 23.800 0.10 o.2 19.8 20.1 0.11 2025.99 23.900 0.10 0.2 19.8 20.0 0.11 2025,99 24.000 0.00 0.1 19.7 19.9 D.11 2025.98 29.100 0.00 0.0 19.5 19.7 0.11 2025.97 24.200 ❑.00 0.0 19.2 19.5 0.11 2825.96 ; 24.300 0.00 0.0 19.0 19.2 0.11 2025.95 24.400 0.00 0.0 • 18.8 19.0 ❑.11 2025.95 24.500 0.00 0.0 18.6 18.8 0.11 2025.94 24.600 0.00 0.0 18.4 18.5 0.11 2025.93 POND-2 Version; 5.15 SfN: 1295160123 Page 5 EXECllTED: 09-22-1995 11:37:56 Pond File: C:\PaNDPACK/ME1H PND Inflow Hydrograph: G:\PQNDPACK`ME1 HYD Outflow HydrQgr3ph: C:\F0NDPACKtME1H HYD INFLOW HYDRDGRAPH RQUTING COMFUTATIaNS TzME INFLnw 11+12 2s/t - o 2s/t + a OuTFLaW ELEVATZaN (hrs) {cfs) (cfs) (cfs) (cfs) (cfs) (ft) 24.700 0.04 0.0 18.1 18.4 0.11 2025.92 24.800 0.00 0.0 17.9 18.1 ❑.11 2025.91 24.900 a.❑o 0.0 17.7 17.9 0.11 2025.90 25.000 0.00 0.0 17.5 17.7 0.11 2025.89 25.100 0.00 0.0 17.3 17.5 0,11 2025.88 25.200 0.00 0.0 17.1 17.3 0.11 2025.87 25.300 0.00 0.0 16.9 17.1 0.10 2925.86 25.400 0.00 0.0 16.7 16.9 0.10 2025.85 25.500 0.00 0.0 16.5 15.7 0.10 2025.85 25.500 0.00 0.0 16.2 16.5 0.10 2025.84 25.700 0.00 0.0 16.0 16.2 0.30 2025.83 25.800 0.00 0.0 15.8 16.0 0.10 2025.82 25.900 0.00 0.0 15.6 15.8 0.10 2025.51 PONa-2 version. 5.15 S/N: 1295160123 Page 1 _ Executed 09-22-1995 10:45:35 Multiply Hydragraph by Constant Unit HXD File; C:\PONDPACKyME1X1O.HYD Output Hydragraph: C:\PONDPACK1ME1 HYQ Multiplier Constant: .1 TFME Unit Multiplier Output Hydragraph (hrs) Ordinates Constant (cfs) 11.00 0.00 x 0.100 _ 0.00 11,10 0.00 x 0.100 - 0.00 11.20 0.00 x 0.100 - 0.00 11.30 .~.00 x 0.100 - 0.00 11.40 0.00 X 0.100 = 0.00 11.50 0.00 x _0.100 ~ 0.00 11.60 0.00 x 0.100 ~ 0.00 11.70 0.00 x 0,100 0.00 11.80 1.00 x 0.100 _ 0.10 11.90" 1.00 x 0.100 - 0.10 12.00 4.00 x 0.100 = 0.40 12.10 14.00 x 0.100 - 1.40 12.20 20.00 x 0.100 - 2.00 12.30 15.00 X 0.100 = 1.50 12.40 9.00 x 0.100 _ 0.90 12,50 7.00 x 0.100 = 0.70 12.60 6.00 x 0.100 = 0.60 12.74 5.00 x 0.100 - 0.50 12.$0 4.00 x 0.100 = 0.40 12.90 4.00 x 0.100 = 0.40 13.00 3.00 x 0.100 = 0.30 13.10 3.00 x 0.100 ~ 0.30 13,20 3.00 x 0.100 - 0.30 13.30 3,00 x 0.100 = 0.30 13,40 3.00 x 0.100 = 0.30 13.50 3.00 x 0.100 - 0.30 13.60 3.00 x 0.100 - 0.30 13.70 a.a❑ x 0.100 = 0.20 13.80 2.00 x 0.100 - 0.20 , 13,90 2.00 x 0.100 ~ 0.20 14.00 2.00 X ❑.l0❑ = 0.20 14.10 2.00 x 0.100 = 0.20 14.20 2.00 x ❑.100 - 0,20 14.30 2.00 X 0.100 - 0.20 14.40 2.00 x 0.300 - 0.20 14.50 2.00 x 0.100 ~ 0.20 14.60 . 2,00 x 0,100 - 0.20 14.70 2.00 x 0.100 = 0.20 14.80 2.00 x - 0.100 = 0.20 14.90 2.00 x 0.100 - 0.20 25.00 2.00 x 0.100 = 0.20 15.10 2.00 x 0.100 ~ 0.20 POND-z versian; 5.15 s/N: 1295160123 Paqe 2' Executed 09-22-1995 10:45:35 Multiply Hydrograph by Constant Unit HYD File. C:_\PONDPACK\ME1XI0.HYD Output HydrQgraph: G:\PDNbPACK\MEI HYD Multiplier Constant. .1 , TIME Unit Multiplier ❑utput Hydragraph (hrs) Qrdinates Canstant (cfs) 15.2d 2.00 x 0.100 = 0.20 15.30 2.00 x 0.100 ~ 0.20 15.40 2.00 x 0.100 = 0.20 15.50 2.04 x 0,100 - 0.20 15.60 2.00 x 0,100 = 0.20 15.70 2.00 x 0.100 w 0.20 15.80 1.00 X 0.100 - 0.10 15.90 1.00 x 0,100 = 0.10 16.00 1.00 X ~ 0.1D0 - 0.10 16.20 1.00 x 0.100 = 0.10 15.20 1.00 x 0.100 _ 0.I0 16.30 1.00 x 0.100 - 0.10 16.40 1.00 x 0.100 = 4.10 16.50 1.00 x 0.140 = 0.10 16.60 1.00 x 0.100 = 0.10 16.70 1.00 x 0.100 _ 0.10 16.80 1,00 x 0.100 - 0.10 16,90 1.00 x 0.100 ~ 0.10 17.00 1.00 x 0.1d0 - 0.10 17.10 1.00 x 0.100 = 0.10 17.20 1.00 x 0.100 0.10 - 17.30 1.00 x 0.100 = 0.10 17.40 1.00 x ❑.1oo - 0.10 17.50 1.00 x 0.100 - 0.20 17,60 ~ 1.00 x 0.100 = 0.10 17.70 , 1.00 x 0.100 = 0.1.0 17.80 1.00 x 0.100 - 0.10 17.90 1.00 x 0.100 = 0,10 1$.00 1.00 x 0.100 = 0.10 18.10 1.00 x 0.100 = 0.10 ' 18.20 1.00 x 0.100 = 0.10 18.30 1.00 x 0.100 = 0.10 18.40 1.00 X 0.100 = 0.10 18.50 1.00 x 0.100 = 0.10 18.60 1.00 x 0.100 ~ 0.10 18.70 1.00 x ` 0.100 ~ 0.10 , 18.80 1.00 x 0.100 - 0.10 18,90 1,00 x 0.100 - 0,10 19.00 1.00 x 0.100 = 0.10 19.10 1.00 x 0.100 = 0.10 19.20 1.00 x 0.100 - o.io POND-2 Versian: 5.15 S/N: 3295160123 Page 3 Executed 09-22=1995 10:45:35 Multiply Hydxograph by Canstant Unit HYD File: C:\PDNDPACK\MEIXIa.HYD Dutput Hydrograph; C:1PONDPACK\ME1 HYD Multiplier Constant: .1 TIME Unit MuZtiplier output Hydrograph (hrs) Drdinates Constant (cfs) 19.3d. 1.00 x 0.100 ~ 0.10 19.40 1.00 x 0.100 ~ 0.10 19.50 1.00 x 0.100 - 0.10 19.60 1.00 x 0.100 - 4.10 . 19.70 1.00 x 0.100 - o.i❑ 19.80 1.00 x 0.100 = 0.10 19.90 1.00 x 0.100 ~ ❑.Zo 20.00 1.00 x 0.100 - 0.10 20.10 1.00 x 0.100 ~ 0.10 20.20 1,00 x ❑.10n = 0.10 20,30 1.00 x 0.100 - 0.10 20.40 1.00 x 0.100 = 0.10 20.50 1.00 x 0,100 = 0.10 20.60 1.00 x 0.100 = 0.10 20.70 1.00 x 0.100 - 4.10 24.80 1.00 x 0.100 = 0.10 20.90 1.00 x 0,100 - 0.10 21.00 1.00 x 0.100 = 0.10 21.10 1.00 x 0.100 = 0.10 21.20 1.00 x 0.100 = 0.10 21.30 1.00 x 0.100 ~ 0.10 21.40 1.00 x 0,100 - 0.10 21_50 1.00 x 0.100 - 0.10 21.60 1.00 x 0.100 = 0.10 21.70 1.00 x 0.100 _ 0.10 21.80 1.00 x 0.100 ~ 0.10 21,90 1.00 x 0.100 = 0.10 22.00 1.00 x 0.140 = 0.10 22.10 1.00 x 0.100 _ 0.10 22,20 • 1.00 x 0.100 0.10 22.30 1.00 x 0,100 - 0.10 22.40 1.00 x 4.100 - 0.10 22.50 1.00 x 0.100 = 0.10 22.60 1.00 x 0.100 = 0.10 22.70 1.00 x 0.100 ~ 0.10 22.80 1.00 x 0.100 - 0.10 22F90 1.00 x 0.100 = 0.10 23 :oo 1.00 x 0.100 ~ 0.10 , 23.10 I.oo x 0.100 - 0.10 23.20 1.00 x 0.100 µ 0.10 23.30 1.00 x 0.100 - 0.10 pOND-2 Versian: 5.15 SfN: 1295160123 Aage 4 Executed 09-22-1995 10;45:35 Multiply Hydragraph by Canstant Unit HYD File: G:\PONpPACK`ME1X10.HYD - - output Hydrograph: C.1PoNDpACx\ME1 HYD Multiplier Constant: .1 TIME Unit Multiplier Output Hydrograph (hrs) Ordinates Constant (cfs) 23.4Q 1.90 x 0.100 = 0.10 23,50 1.00 x 0.100 = 0.10 23.50 1.00 x 0.100 = 0.10 , 23.70 1.00 x 0.100 ~ 0.10 23.80 1.00 x 0.100 = 0.10 23.30 1.00 x 0.100 = 0.10 24.00 0.00 x 0.104 = 0.00 24.10 0.00 x 0.100 4 0.00 24,20 0.00 x ❑.1oo - 0.00 24.30 0,00 x 0.100 0,00 24.40 0.00 x a.100 - 0.00 24.50 0.00 x 0.100 ~ 0,00 24.60 0.00 x 0.100 ~ 0.00 24.70 0.00 x 0.100 - 0.00 24.80 0,00 x 0.100 = 0.00 24.90 0.00 x 0.100 = 0,00 25.00 0.00 x 0,100 - 0.00 25,10 0.00 x 0.100 - 0.00 25.20 0.00 x 0.100 - 0.00 25.30 0.00 x 0.100 - 0.00 25.40 0.00 x 0.100 = 0.00 25.50 0.00 x 0,100 = 0.00 25.60 0.00 x 0.100 = 0.00 25.70 • 0.00 x 0.100 - 0.00 25.80 0.00 x 0.100 0.00 25.94 0.00 x 0.10'0 - 0,00 Quick TRs55 Versi4n: 5.45 S/N: 1315460151 Page 1 Return Frequency: 50 years TR-55 TAeuLAR HYDRoGRAPH METxaD Type II. Distribution (24 hr. DuratiQn Storm) EXeCUted: 09-22-1995 10:30:05 Watershed file: C:\PQNDPACK\ME1 MOP Hydrograph file: C:\P0NDPACK\MB1X10.HYD Mxdilame East 1st Additian Input Parameters Used to Compute Hydrograph <<<c Subarea AREA CN Tc *Tt Precip. Runoff Iafp Description {acres} (hrs) (hrs) (in) (in) input/used affsite x@ lox 59.20 69.0 0.20 0.00 2.40 J 0,38 1.37 .37 * Travel time from subarea outfal1 to composite watershed outfall point. I-- Subarea where user specified interpalation between Ia/p tables. Total area = 59.20 acres or 0.09250 sq.mi Peak discharge = 20 cfs Camputer MQdifications ❑f Input Parameters,<<r<c Input Values Rounded Values Ia/p Subarea Tc * Tt Te * Tt InterpoZated Ia/p oescriptian (hr) (hr) (hr) (hr) (Yes/Na) Messages Offsite H @ 10x 0.23 0.00 0.20 0.00 Yes ---------------------------------T___----_---____-_---_---y_-__________________ *Travel time from subarea outfall tn campasite watershed outfall point. Quick TR-55 Version: 5.45 SfN: 1315460151 Page 2 Rsturn Frequency: 50 years TR-55 TABULAR HYDROGRAPN METHaD Type II. Distribution (24 hr. Duration Storm) Executed: 09-22-1995 10=30;05 Watershed file: --a C:\PONDPACK\MEI MOP Hydrograph fi3e: C:1P0NDPACK\ME1X10.HYD Midilome East lst Additaon >>>a Summary vf Subarea Times to Peak <c<< Peak Discharge at Txme to Peak at Campasite autfall C❑mposite outfal1 subarea (cfs) (hrs) Offsite H @ 10x 20 12•2 Cvmpasite Watershed 20 12.2 Quick TR-55 Version: 5.45 S/N: 1315460151 Page 3 . Retur-n Frequency: 50 years TR-55 TASULAR HYDRaGRAPH METHOD Type 11. Distributian (24 hr. Duration 5torm) Executed. 09-22-1995 10:30:45 watersned file: c.qPONDPAcx\MEI MOp Hydrograph file. C:\P0NDPAGK\ME1X10.HYO Midalame East lst Additian C4mposite Hydrograph Summary (cfs) 5ubarea 11.0 11.3 11.6 11.9 12.0 12.1 12.2 12.3 12.4 Descriptian hr hr hr hr hr hr hr hr hr pffsite H@ 1ax 0 0 Q 1 4 14 20 15 9 Tatal (cfs) a 0 0 1 4 14 20 15 9 -----------------------_-_____-_______--a-__---_--------__e___a-------------__- Subarea 12.5 12.6 12.7 12.8 13.0 13,2 13.4 13.6 13.8 Descriptian hr hr hr hr hr hr hr hr hr Offsite H@ lOx 7 6 5 4 3 3 3 3 2 Total ( cf s) 7 6 5 9 3 3 3 3 2 Subarea 14.0 14.3 14.6 15.0 15.5 16.0 16.5 17.0 17.5 Descriptian nr hr hr hr hr hr hr hr hr Dffsite H@ 10x 2 2 2 2 2 1 1 1 1 ~ TQtal (cfs) 2 2 2 2 z 1 1 1 1 -___-____--__-__-o----------------------------------------------------_____---- Subarea 18.0 19.0 20.0 22.(] 26.0 Descri,pta,on - hr hr hr hr hr ------------------------------------__-s-_-----___----F---_-___-__---------_-_w Offsite H @ 1Ox 1 1 1 1 D ---s__-a-__-_---___-_--a_---__-__r_---------------__ _ Tota1 (cfs) 1 1 ~ . 1 0 Quick TR-55 Version: 5.45 SfN: 1315460151 Page 4 Return Frequency: 50 years TR-55 TAEULAR HYDROCRAPH METHOD ri Type II. pistributian (24 hr. Duration Storm) - Executed: 09-22-199~5 10:30:05 Watershed fi1e: C:\PDNQPACK\ME1 MDP Hydrograph file. C;\P0NDPACKRME1X10.HYD d Midilome East lst Additzon Time Flow fiinie Flow - (hrs) (cfs) (hrs) 4cfs) 11•0 0 14,6 2- 17:.1 0 14.9 2 11.2 15.0 2 11.3 0 15.1 2 ' 11,4 0 15.2 2 11.5 0 15.3 2 11.6 D 15.4 2 11.7 0 15.5 Z 11,8 1 15.6 2 11.9 1 15.7 2 12•0 4 - 15.8 1 12.1 14 15.9 1 12.2 20 16.0 1 12.3 15 16.1 1 12.4 9 16.2 1 12.5 7 16.3 1 12.6 fi ].6.4 1 12,7 5 16.5 1 12.8 4 16.6 1 12.9 4 16.7 1 13.0 3 16.8 1 13.1 3 16.9 1 13.2 3 ia.o i 13.3 3 17.1 1 13.4 3 17.2 1 13.5 3 17.3 1 13.6 3 17.4 1 13.7 2 17.5 1, 13.8 2 17,E 1 13.9 2 17.7 1 - 14,0 2 Y 17,$ 1 14.]. 2 17.9 1 14.2 2 18.0 1 14.3 2 18.1 1 14.4 2 ; 18.2 1 - - 14.5 _...a 2 18.3 1 . 14.6 2 18.4 1 14.7 2 18.5 1 Quick TR-55 Versian: 5.45 S/N: 1315460151 , Page 5 _ Return Frequency: 50 years TR-55 TABULAR HYDRaGRAPH METHOD - Type 11. Distrabutian (24 hr. Duration Storm) Executed: 09-22-1995 10:30:05 watershea file. C.\PONDPACx\ME1 MOF Hydrograph file. -W> G:/PaNDPACK\ME1X14.HYD Midilame East 1st Addition Time Flow Time Flaw (hrs) (cfs) (hrs) (cfs) , 18.b 1 22.4 1 18.7 1 22.5 1 18.8 1 22.6 1 18.9 1 22.7 1 19.0 1 22.8 1 19.1 1 22.9 1 19.2 1 23.0 1 19.3 1 23.1 1 19.4 1 23.2 1 39.5 1 23.3 1 19,5 1 23.4 1 29.7 1 23,5 1 19.8 1 23.6 1 19.9 1 23.7 i 20.0 1 z3.s 1 20.1 1 23.9 1 20.2 1 24.0 A 20.3 1 24.1 0 20.4 1 24.2 0 20.5 1 24.3 a 20.6 1 24.4 o 20.7 1 24.5 p 20.8 1 24.6 0 20.9 1 24.7 Q 21.0 1 24.8 0 ' 21.1 1 24.9 0 21.2 1 25.0 0 21.3 1 25.1 a 21.4 1 25.2 0 21.5 1 25.3 0 21.6 1 25,4 ❑ 21.7 1 25.5 0 21.8 1 25.6 0 21.9 I 25.7 a 22.0 1 _ 25.8 0 22.1 1 25.9 p 22.2 1 22.3 1 Quick TR-55 Ver.5.45 S/N:1315460151 Executed: 10;17.08 09-22-1995 c:\pondpack1ME1.TCfi Midilame East 1st Additian Tc COMPUTATIDNS FOR: Offsite H SHEET FLOW (Applicable to Tc onTy) Segment ID Surface description Manning's roughness coeff., n 0.0000 . Flsw 1ength, L (tatal < or = 300) ft 0.0 Two-yr 24-hr rainfall, P2 in 0.000 Land slope, s ft/ft 0.0000 0.8 007 * (n*L) , T . = hrs 0.00 _ 0.00 Q.5 0.4 PZ * s SHALLDW CQNCENTRATEd FLOW Segment ID grass Surface (paved or unpaved)? Unpaved Flara length, L ft 1040.0 Watercaurse slope, s ft/ft 0.0060 0.5 Avq.V = Csf * (s) ft/s 1.2498 where : Unpaved Cs f= 16.1345 Paved Csf = 20.3282 T _ L / (3600*v) hrs 0.23 ~ 0.23 CHANNEL FL❑W Segment 7C❑ Cross Sectional Flow Area, a sq.ft 0.00 Wetted perimeter. P'w ft 0.00 Hydraulic radius, r = a/Pw ft 0.000 Channel slope, s ftJft 0.0000 Manning's roughness cDeff. f n 0.0000 a/3 i/2 1.49 * r * s V - ft/s 0.0000 n Flow length, L ft 0 T _ L (3 6Cl 0*V) Y1rs A . 0 [3 = 0.00 ............TOTALTINtE.(hrs)......0.23i. Quick TR°55 Ver.5.45 S/N:1315460151 Executed: 10:03.01 09T22-1995 Midilome East Ist Addition RUNOFF CURVE NT7MBER DATA Camposite Area: mffsite H@ 10x AREA CN Si]RFACE i]ESCRIPTIQN (acres ) grass 59.20 69 CaMPasITE AzEA 59.20 69.0 ( 69 ) ~ '~n.r•f . . r_.~ - 'D_1~-~~~..._.~~~-c. +~zB 2~ 8 PO R.~ G li~-- C-N.5_ w m. ~ ig -A -se~ - ~ - --~v . - . _ _ . . . - ~ ~ ...~..~_~.~_5' ! ~ ti ~ y ~ Q_ _ F ~ _PL~ . ~ Av T_• ~ L 'V 5 T_ 0 _,_v ..~T~ .~.~._....~._.,v . , _ - •,v ~ - - - - . ~ i . . V - • T - ~T ~ p~~'~ ~'C • ~ - ~ ~ ~._...W_..~__~~,~f:~._~~__- _ ~ ~.Q.~_ - C~~D4t. wl,.4QG._ ~~~It~~~~-v«us~ ~ - ~ - ! - - ~ -~/z I~.-- _ _ - "7.O$' ag e.~!~ 3, 04-L - ~ ~ v~ACa~ '?,°\1 ' d _ ~ _ _ _ " _ . . _ n-~ _ _ ' ' ~ _ ~ q - - ~~f~l.~ $ • ~ ~ 3 7 _ ..r_.~ - ; f } . _ ~ ' . ....__.w_._ . - - - - - - - - - , ~ _ ~ C~ P•l~ ~C~ f~ C. A~- C U~. ~~C 4~ t~ 1 '~=w 4`^s . ~Z~~1 N -T - - ~ --==~--l~l L?~.~_~ 1.~@~_ ~ . ~ ~ . ~~rG~ ~ ~ l ~ Z~~ , ~ ~ GZD 1 `l . _ ~ - - _ - ~ ~ l a F~ • - - - - - - ~ , - - - _ . ~Qra k ~~T ~ ~(l•~~ C~z~~. ~ ~ ~ ~Y: 3.D~z ~'T.' 1-L E . ~ - - ~ - • • - - • - • . , . E. . - . _ - - _ • • • . . - ~ ~ lZ"33$ ~ST r,l,0 `I ~ vr~l L-aT tv~5 CKwr~~ - . - - - - - _ . _ _ - ~~w - - - - - - - - - ~ - . ~ ---~as rr, e- nA. - - - - _ . ~ - - - - - - - - - lv'- - - - - _ . " ~.5{ - - -I.~' , -~oy oi 17V:14e-wu,~ ~ ~ , ~I ~ D.C1~(~'~ ~C'~.IFT• ~ 7 J ~ ~ ~ 4 ' d . a 1. . , ~ ~ % ' a 'R~. I~ . r . s 9 . • ♦ ~ ' ' S ~ _~f~ ~ FT.IF't. 5 k. ~lvpz ~ ~ ~ rd,5 - ~ ~ ~ - CD ~3_6s IJ6~- L ~ ~ ~+lTr~ • - • _ ~ ~ : _ ~~Ir p ~~'`3y - - • . . - - - - • ~f~ ~ 1f IG +3. ~ Ytr12. Yt~ . . ~1 ~ I . ~ n` _ . - • ~.~F . 1 5' - - ' • ' - ` ~i7 [7Ti 1~r4V~W~1 ~e . ^ ° ~ " ~ 0.0 f-T. Ir-T. r' - • " . ~ ~ ■ • - . r r r:~. rfr~' ~'1~~:~', ;~,~i . ! 1 _ 1 . L " a ' . t ^ w . ~ d : ; 9 ' • ti • . i , , ' ~ n ' 4 , • G.s~ ~t - ~---~Q Q, Ji 4-7 : k- av\ c. -_-_rm~l ~ ~ - - ~y • ww~Z SFap e- C-v.rU 0'rscy~ f't1 e- 0. GS~pja1kL . . ~ • - • • . , , . ~~r,~.. ~ ~~~C ~~[4~ ~ C~~C ~~t ~C~ ~ I/C~r,~ , ~ . 1 Fr/FT q" , • _ _ RATI OIVAL FflRh1L1LA HYDF:OLDGY I3ATE = 9/ 1/95 DESI.4",k4i'ER = k; W I"1CMZJLF:I N BASIN I" PRO.7ECT NAME = M I DILQi"IE EF3ST 15T ADDI T IOIV Y]ESCR FPT i ICIIV = STC]Fif'IWRTEFi TfRA T NA.I~'.E . , SUHAREA 1~. 09 AC~";E!a SUBAREA 1RUNOFF L'i]Eh F T C I ENT = . 9 SL1BAhEA 2 .1 flGRES SLJBRRER 2 RLJiVE3FF GQEFF T CIENT = .15 l"OTAL AF:EA ~ .19 ACRES COMF'OS ITE RU1VC1FF CL7EFF T C I ENT = .5052671157B95 ❑VERLAND FLC]W VALiiJEs Ct = ,I5 L - 0 N - .4 S _ .01 C:HANNEL FLC7UJ VALUES . L 77 Z]. 7.3 22 = 8.6 N 03 B 5 = .012 TT3 = . 1 eb C;OhiPIJTEI7 UALULS ' . I1UF; - 5.00 - I 1 C~-- D 18 ~~U [~A BOVIST~''r x NG GALCLiLATT ClNS 17F1TE = 8! 1i 95 DE5 I GNER = h: IrJ I"lCf"Il.1laN;1 IV BHST N "I" PFsQJECT NAME h1I T~ ILQI'1E EAST 15T F3L?DI-l' T C1N DESCRIF'T I qCd = STOFeMWAI"ER DrR I NAGE t t IntPrrsx ty Qdev. ~Ji n V13ut Storaqe {min. ? lsec. ) {irs.1hr. ) (c.f.s. ] [cu. i't. ) (cu. +t~ ) 4cLL. ft. l 5.0 )K 30() e+ , 1 Ei . ~,1 1 °w -3 90 717, 10.0 600 2.24 .22 15 1 ISO -29 15.0 900 - 16 77 .17 170 270 -1 QCi 20. C) 1200 1.45 .14 181 7-160 -179 25. Ct 150cs 1. ~1 . 12 186 450 -264 Y0.Ca 1800 1.04 . 10 190 t40 -350 ' 35.0 2- 1C) 0 .91 ,(:)9 19 2- 670 -R~--B 40. C1 i4 C10 . e2 . 0e 197 720 -52z. . 45. C1 2700 .74 .07 199 slt,f -611 50• C) L4"04J • 6v • ~.~7 202 70lj ""67a 55. C1 ; "0 Cl .64 .06 209 990 -731 60.0 Z600 .61 .06 217 1oBo - E36 71 65. C) 3900 .60 .06 229 1170 -941 70. C) 4200 , 5e .06 24(.) 1 i60 -1~.~: 0 75.0 $500 .56 . 05 245 1 e*5 4.1 °-1 iC1s 80. 0 4800 .5-~ otj 249 1440 -1 1 7 1 95.0 5 10 0 .52 257 15 ~'•f.l -127:,7 9C1. 0 15 4C10 ...~a0 o 05 264 1620 -1 356 95.C) 5700 .49 5 '7" 1710 -1437 " 100. 0 60OCk a 48 . Ca~ 21B1 XSOrs -115 19 THE MAXIMCJf`1 STORAGE IS --52.72.2560(:)(.)1 CU. FT. * The time oi concentration is 5 minUtess. 1"he Undevel oped +10w OLit i s . ~ . ~ . TEhl YEF3R 51"C]F:M CRLC F.RT d C1NFiL FClhl`11.1LA HYDROLC]["aY DATI: = 8/ 1!95 TJESIGNER = k; W h]GI"IIJLI :I N BA5 x N I"F'AVT ~ PROJECT CJAME =M1 DI LOME EA5-C 1S1` ADDI Yf YoIV DESCRTPI-rON ~STaRMwArER T?RAT NAGE S§JBr~REA 1=. 07 ACf"r"ES SUBFlf;r°A 1RUlti1OFF CQEF'F T C TEIVT .9 TC1TAL ARE-fi = .07 ACRES CC3lhF'pSI°I"E RIJNCfFF COE:FF I C! EfVT = c? GVEhL.AIVD FLOW VALUES Ct .l15 L trl .4 5 = . 01 CHANPdEL FLOW VALUES L 77 71. _ -~6 Zg' _ .167 PJ .016 B - S - .G]Yc TD _ .097 CC7h1FUl-ED VALUES DUR - 5.00 ' 110 _ '3. 18 D1Ca - .20 Vk = D.~'~3` ~je~k~, o'~ v~a~~r a~ ~►n~r~.vrc~ ~ c r~ a,.-~ e o~-~ ~ o w ~ v•Z ~ Y 3 . v 8l [ U] c . i . 0,20 7- 3•~"~il ~F-r,~~~ c- "L rb ~~e Y►v►g 3~ v~+~~ ~ ~ ~~~P ~ ~ D97.~_'Q~ ~Y___ . _ n • -A ~ - - - - ~.A 1.N_L6 E_ _ _G A_L ~ u t.. A,-T t_~]-N 5 - - - - - - - - - - I 1~S 19 ` -7 ~ - _ - _ - - ---~.___'_~P5_~c•~_ y __._.._e._ - - - - ~ - - Ta T KL; ~ f--~--~ ~v ~ ~ ~ _~l• ~.~.p.~ l_~` ~ ~t_~ ~a.~~? _F"~ - ; - -_~4~~-A_~ ~ _ ' _ ' _ _ ~ .3 _ _ _T._ _ c]p o`_ ~ • _ T. C?_'Q_ _ ' _ ~ 0 0 A.~ dl~!'?'~ f~l_ R : ~ - - ~ ~~~'1__ ~ ~ vm-oLE_5_-C~....__.~.. ---'~--3 .~9.{7 _FT,___------- - - - - - - - - ~ ~ ► v ~ p ~ lv ~ t ! - _ ~t~~F~~_~ Z - - _I~ Y a.1`~l I ~3o.5- .F~ kcv-e _ ~ ~ _ _ _ . - - - . - - - - ~ - _ _ _ , ---•______,_a___..~_--.~__._~---- - _ - - - _ . _ ► _ _ - - - - - - - - 1- I~ -t~: ~ 0`$v ~►_~1 t v\ a._._. 00 3 ~ ' _ ~ _ _5 i ~ L ~ Ba► r r e.l _ 17 r y+ t.41 ' - ~ ~~OT~A~~ g~ov►D~p : I , r~._ _ _ m _ _ _ _ - - _ - - ~ - - - - IlS f-r•3 7 24; , ~ h1c • 17-a~~ ~~~•~NA~~ cA.l~Gu~.~~ ~❑r~~ +~wt~ ~W+~'l.~ AN A, 1L F: F,~ ~ ~ - ~13 01`& ~g ~-r~~ ~T.' 4oa _ -----•----~z----- - -~1~~~(~~'~__~__~a~t~_~r~~ _t?4_~~.~-. As4)(3.55 lq a - - - ~ - - - - - . - - ~ . ~ . _ f _ . _ _ ~ fl. 'L ' e ' - - - " ' - - - e -P !l, _ ~ ~ ~,~1. ~ J T T~ l7 L 'C l 0'i~il . - _ • - ~ 1 `~r ~ 9 5 kT l[7 N 5 ~IW - - - - - - - - - l~' --~a5~rne.rn~~---- - _ . _ . . : - - - ~ - - - ~ z - - • • • _ , ~O1- - • ~.~7j 1.5I - • - ;B- --Z- w I `T~~ o~r ►~7~r►v~~uJ ~ ~ifi.~a{,~~~ oa ❑.~lla`i F~•~~rT, -~1`~"'~`!!1 ~ , ~ e i . . ~ , ; y o. , , • . . . , - . ~ ~ • ~ . . ~ ~ ~ • . . _ • JI ~'~T Y ~i6'9 . .~1~ ~ • ~ H, 6 . . ~ ~ ~ R~ F T. / f T. S P C-'rv a 1 - se-Ci4 4'n ~ J P\re-0. n ~ .dkqcAe- _ m y 8,5` 4.~~ - • • • - s OD t7.`i1 ~ ~t•~.9 a.~5 O' JI~ y!~` - - - - - - - - • - - - 7 ~ F - ~ ~ ~ - --~=lF~.-~~ •0 ~~~~ti - • - • _ . . . , - - - - - - - - ~Iw 13~ ~aS e- me-rn~i • _ _ { ` _ ~3.~I " ~ ~ 1.~~ Tv~ ~f pr ivev~~+~ ~ - Ar' ~ ~ I~I...`~~rt~l,r`h~~~1,,~,e~l.P~! T ~U• - '-w C3.D1l~ F"C. f~ ~ r~ rwr]]7~`'i11 ~ 9^ _ a . [ ' o S ' 4 ~ c ' .'~1'A r a ~ - ~ ° ' d , I . 6 ~J~ ~f 'q~ ` ~ • ~ . `~rdE1 ..I,~:..~~rr~i}rr i o ~1~,~:•~-~, ` ' ~ . `r~t t~. , ' - ~❑r ~l~~ L Ft•IFr, t° Cro5_`~.~, ` . ~ : ~vnal fire-c, o~ ~w ale_ Se.c~' ` - - - - - - ~ j Y//,~. a)(0.5)[A.zct) o,c~ 3} _ ~ ,o~ • ~ r~7:/ ~ . , k ?Zm ~ ~r .55_ , a. . . ,y. RATZOIVAL FaRMULA HYDROLdGY DATE = Bf 1I 9; TIES IGIVER = I,: W NIGMULKIN BF;S IN „J" F'ROJECT fVAME = h'i I I} I LOME EA5°i' x ST AI7D T"f IOIV L?ESGR IPTI ON ~ Sl"OFMWATER T3F:AI NAGE SLEBAREA 1=. 19 AGREa SUBAi=+EA 1 I~Llh!OFF COEFF I C I EhIT .9 •SUBr'aREA : T,15 RCF;ES SLIBAREA a,' hLJNi7F F CCIEFF I C I EhlT = , 15, TQTRL AREA ~ .:,4 RCFES COT']PQSI TE RIJIVOFF COEFF T C IENT = .5691 17c471=159 OVEhLAiVD FLQW VALUCS Ct = .15 ' , L - C, IV - .4 S - .01 CHANNEL FL[7W UALl.JE5 L. _ 164 . Z1 = 7.3 I2 ~ 8.6 N - .0:~ B - 0 S C)1 ~ T I7 S CQMF'LJTETS VALiC1CS DUR - 5.00 1 Ci - • . 1 ~i L . ~~~a = 62 G!R 61 BOW5TR IlVU" CALCULRI° Z [:]NS DATE = E3/ 1 f'95 fSC,'s I CaNEFi =K, WMCMLJLF:I fV BA5 T'Pd ".7 " PROJECT NAME = f`1 S DIL,.O1IE EAS'f 1,'aT ADI] ITI aN DE5Ch IPTIp1V = 5T[7F~MWATEF► URAT IVAGE t t Ii7tensity G?dev. Van VtaLlt 5tor aqe frnin. 3 (sec. ) 43.n.Ihr. 3 4c.f.s. l teu. f t. ) (Cti. f't. } (cu. +t. 3 5.0 7- 31. 18 .62 21 47 9c4 1 57 1 C). Cs 600 2.24 . 4~ :~04 180 124 15. c,s 900 1.77 . w 4 e4.~ 270 7L-, 20. C1 12-00 ' 1.45 .28 7.65 :~60 a 25.0 1500 1.21 . 27, ~75 "T 5CI 5 :110. C1 1800 1.04 . 20 oQ:~ .`.i4 0 -1 5l : 5. [1 i 100 .91 .18 388 6J4-1 ."242 40. 0 2400 .62 .16 ,97 720 ..°71 2 1 45.0 2_700 .74 .14 401 £l 10 -409 SC). 0 :3000 .68 , 13 406 900 -492 55.0 3700 .64 . 1.~`~„ 421 99cE "'569 60.0 7-600 .61 .12 4:',7 1C78o -64v 65.0 3 9 C) C) .60 .12 461 1170 --709 70. 0 4200 .58 . 1 1 48:71 1260 -777 75. Cy 4500 .56) .11 494 1 e,5Cs -1356 SCa . C~ 4800 .53 . 1 c) 503, 1440 --9~~7 $,..i. C) 5 l[.141 .52 .10 518 15 ~~C9 -1012 - 90. Ct ..~'a400 .50 . 1 Q 5 32 1620 GBB 95. Cl 5700 .49 , .09 55cf 1710 -1 1 60 100.0 6000 .48 . 09 15 67 1E300 -1237 THE MA7C T ME1M STORAGE I a 157.362660001 ClJ. Fl". ~k 7he time Qf concentrati on i s 5 mi nutes. The Us-ideuel oped +1 0w aLtt 15 . 7" c . -F. s. TEN YEAR STL.7Rh7 GAL.C RA7ICJNAL FORIviULA NYDROLOGY DATE =8/1 I95 DCSI GNEFi = l<; W h1CMLJL1:' x N E.~RSI N F`WVT PROJECT NAl"EE = Mx D I L.Ol`1E CF3S"f IST ADD I T x CIIV DESCRT PT I[31V = STQRMWRTER DRA IiVF1GE SlJBAREA 1 = .12 AChEa 5llBl~~ EA I F:IJIVC]FF COEFF IiC IEI'+ll" = .9 TOTAL. AFiEA = .12 AChES L"~IIP4S ITE hL1NC1F F GC3EFFT C IENT = .9 OVERLAfVY3 FLC[W VALLJE; dd t 15 L w 4~ N • 4 S M . 0I CHAIVIVEL FLOW VRLUCS L = 164 Zi = :~6 Z2 _ .167 N .016 6 01 1' D ~ .117 COMPUTED VALUES DuR - 5. 0c~ ~10 _ 7.18 Ga I CP = . =4 a W . '-74 ' YO i rr~k ( ~ El ~Y • ~ `C'Dia.l ~\65~\i a~ ~~~'~~►n~ H, -r- De?t~+ of v~o,~evr at eM~rr-ance- 0 1Z 0.41 z ~ 7z ~~r►~ Q-~ky\) ~ ~y... L C7 M E-~-_&S_~ :5-7-_~-,_Dl~ 1-1-1 P- f'`l tA o . _.-D9PllNP.Ge --_jC~-ALGULA`r~'D N S m . ~ - - - - - _ ~ ~ ~ ~ ~ ~ 6 ~v. o _F-s ~ ~ . - - - - - - - - - - - n, 0 - f- ~ f-~._i~~~ ~ _ ~ _.~_~___..._._~~!Ci~~±-~-~ 1 ~r L].~__~~.:__.w__µ__..~..~ 1~~.~~ _ . - ~ ! Z _ __-W • . ~i Q `f . __.w._.__.~ ~ - - - ~ - - - ~ - - - - - . . . _ r` 71 - - - - - ~ - - - - _..~._f__~`--,~ E ~ _.d _~__p ~ ~v ~ 5~ a' _Z ~ d!v o.._~-~.• - - _ ~ _ -~---_..~►~1_ ~w-~ w_____ ~ v ~ ~ ~ _ w _ _ . . - -._~--,~,~~~~to~~-_~.__.~~, - ~--CD-C7p:$p _ _ ~ . l~QfS~.r,~__F~- - j- - _ - - - I i ...+'10~I,tG V- 1?-SQw?-FmD I • - - ~ - ~ _ _ _ - - - ~ _ ~`~Z , - . . ~ - ~ol~ Zo'~, 5~k~r~,c~~ ~ o~D 'F~• ~ ~ Zl~ - ~ - - - ~ b~j ~Ow 5~krir►~~ ~ 33 Fl ~ __T_ _ - _ - - , _ - , { ~ SW AL ~S : ~I ~O ~ ~~Z ~.3_3 - ~`'~_tvl~-D~r~- 1T---~~~ ~7~f~•1t~1p.C~ C- F.LCU4, kTta~~ 5\1-4 k t..~ o~F~CE ~AV'~l'rl~N -T 51 47R F, GC. f=N lLP- F- +-ZI - - - _ ~-~~~r~'-~~~-I~~~~L •~'6 $.D.fj7 (3.55 z ~ ~ . . . - - - - - -----5;~~~ F-c.~ ~ l ~ ~ . _ _ _ _ _ - -Mr_~.--• . - - - - - _ - - - s- - - ; ~ 014Icts U~ PL 1[V p. ClQ.L G L] L kT 1 O id r - - _ _ - - - - - - - ~r~,- - . - - - - - _ _ -ko' 1,5 - ' ■!h I/ ~ r~...,~~~ ppl ~ . C) 1 ~o~ '~C ~ ,~'~I ~ ~ ' ~t` a R n I.. • ~ ~ ~ ° I a ~ . ~ • a • , - 1 r , ~ . r a . i ' , ~ • f . ~ \,5 • - - FT./FT. •l~~~ll~~ ~ un 3~~ ~ ~1~~~ -A NC m°`L Q C . CuYb - ~ ~ wle. $at~ow+ ~ . ~o' . . _ C.~r~SS- 5~C-t'ia'~~1 f'trea ~~r~r~le - - ~•~9 OD 3_GS - { ° s • - • • - _ . . 6 ~ 't3 ~ ~ 7 ~T~ ❑ - - - - - • . - - - - • - - • • - ~~W ~ ~c~~e.,YYt~►n~ - ~ ~ 1 v~ - - . 5 ~ - - _ ~ l. 5'• . - • - ~[c~~ fl~ 1,~+rivewa~ ~ - ~ ~ . - . . . . I!~ rr1~'1 ~~~~yy ~ _ - ~ ~ 0.C) 11n~ _ . f . - ~ ~s, ~ _ _ • 4 . _ 1 4• 9 1 ~ ' ~ ~ l ` ~ ~ • ' L: rlr11 r~~.~~~ir~~IfifA .1~~~ " ~ ' . 4 , ,t ~ . e • ` ~ - • I ~ G ~ F T• ~ s,~ T-'''rIf-C~Tr*~Y1 i.`'Y~,i,~- ~ ~['t' ) _ ~ k- e - . . = ~°__l.~-~---- - ~ - - - 1T 0.5)~~.~.~t'] ~ p' .ib ~ ' ' Fr~,F~ ` ` • _ 5 a F i ~ . RAx z raIvAL Fcar,iIULA i-~~~~OLOcv DAI'E = 811/95 DESIGiVER = k; W l''°IGMLJLN;IM BASXN "E.:" F'RCf.]ECT NAME MT D I L.,UI''1E EAS-f 1 a`T' ALYD TTIC]N DESCRzPT z ON =Sr[1RMwATER DRA z iuAGE - SuBAR€a 1 = .25 ACRES suBa~~~ 1 RuNcJFF eOEFFICr ENT = . ? SUBAF:EA 2 = .24 ACRES SUBHFtEA ? RUIVC7FF COEFFIC ~ ~NT = .15 ~ 7'CiT'h1L I^REA _ .49 AC1=iE5 COI"IF'OS I7E R1..#NC1FF Ci;1EFF 3 C 1EN"f = .5'-~265Li061i24 OuERLArvD FLaw vALuES ct ~ .~5 L _ 0 N - .4 s - . 01 CHANNEL FLOW VALL1E5 1... _ 15Es Z1 = 7.::* Z2 - e.6 N = . 0:a B - C) S .008 TD = .292 CR]3"iF'11TED VRLBJES I]1JR _ 5.00 I1~~ - ~+.18 010 8 CIfl BOWSTF+I IVC LALCULRTI C1N5 DATE _ 8/1l95 L3ESIG61lEi; ° h: W C'IGl°1ULKIN BASIN "h;" F`RCiJECT NAf'1E _!''I Z Lf I LONE EA:i°I 1S7 ADL7 I`f' T Q[V I3E5CF:I PT T f71If =STCJRMWATER L3RA INAGE t t Intens2ty Rclev. VIn vout Storage {min. ) (sec. ) da.n./hr. ) (c.f.s. ) (cu. +t. ) (CLs. ft. ) Q:U. ft. l 5. f,l ~ j[)i] 3. 1E3 . 8 ~ =-4 ;00 y4 10.0 600 2. 24 . 5EJ 410 6C?t.."l -190 15. Cr 900 1.77 .46 463 90i F -4:77 20. 0 32Cid:y 1.45 . 718 493 ] 200 -707 25. C1 15{.'~_1 1.21 a ti~ 506 1 Ji,]() -994 30.0 1800 1.04 .27 51 Ea 1800 -1 i84 ::5.0 2100 91 .24 52:1 21CiO -1577 40 . 0 ~4C~[.~ .82 .21 ~v 2~4ClCa - k 66~ 45. rr 2700 .74 .19 541 '2700 --21 ;9 50.0 L Cr00 .6B .18 515 1 ,000 -2449 5..~~. C) _ 7t?cr .64 .17 560 ~-~~lc) -2772 60.0 L-, bC) 0 .bI .16 15 a 9 ~--,b00 --70 1 1 65. ~71900 .60 .16 6z, 1 39Cro - 3': 79 70.0 4200 . 5E3 .15 651 4200 --3549 75. Cl 4500 .56 .14 667 45 C1[ ) 3 8 „:a BO. 0 4800 .5;: .14 67E3 4600 -41 2? 0 sTt)c:f .52 . 13. 699 t 1oCi -4401 90.0 5400 .50 . 1 718 5400 -4682 95. c.) 5700 .49 .13 742 5700 -49`8 100. C) 6000 . 48 .13 . 764 6000 -52n6 TFiE MA7C I MUM STORAGE 16 33.65196 ClJ. FT. ~k The tim~ co~~entrataran is i mznt-ttea. The LlntJevel oped flaw aL4t z S 1 C.f.s. TEhl YEAR a7DRi'1 CAL..C ~ RATICIIVAL FC1F;1'1UL.A HYT3RC.lLOGY L7A7E °8J 1195 DESIUNER = h; W MGI"IULKI fV BF;SIN (Lll ~~AVT+`~`, ~ F"RL.IEaCT 1'41AME = MTDILLCIE EAST 1Sl" ADDITZON I7E5CF:I P1- ION = 5TOhMWATER Df;A IIVAGE SUBAREA 1=. 12 RCRES SLJBARLA 1RUiVOFF CC]EFF XCX LI`Jl- _ .9 1"CJl°'AL AREA = .12 ACRES C:OrIF'O5 T TE fiUNOFF CC1EFF IC IEN-f = .9 OV€RLAND FLOW VALL1ES Ct _ .15 L _ 0 N .4 S - . G=a 3 CHANNEL FLRW VALLJES G,.. 156 L 1 - 6 2 i = .167 N = .016 6 . 00e TD ~ . T2-3, CaMPu rEn vALUE3 DUR - 5. 00 r i o ~S. le 010 C!A - .7.5 0?e. Yr t +n ~ cr.`[ ~+(1 ~ ~jl~ ~ 0411 ~ z D,lb 1 L 3.0,6-1 'Z.~ a C ur0 e.►n i h(3 i 3' y4 i ~ e- ee- ~ , , ' MEUILOMS GA1ST _T,_ 'RN 0-1D pLAV Iv - - 1 "v~,~lV~~...r__. ...v.._ ~ _ i'~~~ ,~.T)D _c-.=••__,~.~w.Nlt3_L1S_J'rG_~__~OC7O~ C~•Z-•~-. Z..y_'J_.[]_l7. _~.C~~_ _a- - - .j M ous S Alwm_P _ IF ~~'o._~o [7_. ~ ti ou~s- ~ ~ - G I?t p s ~~7~~ ~►~e~. c~re.a,_ C v.~+.~.± d a.~r e.~_..._'~_~~~i ~~~~~~--1 c~~.~ _i+n~l~~e~~r~s~v±~~i$~_~re.q, ; ~ . . - - _ - • , o Y- A~ - . ►~,.1 ~ r-ta5 . ~w.~.~~..y..; ~?-PGS w. _.~...~..~_...~~....e~...__.~_~~~_~~__,~.___._. . , ; S~~~~~ : ~g co ~(B A- . i 1 . . T_1.~~ _4-~-~' ~WN1 Z 1o f=.`.1 1, 1 t.. fi E FI.~ 6.3~- - , ~ - - - . _ _ - - - - - . . . . . ~ ~ov '~~4 1 f~•~ F-T.z~ ~ F~r•, - - - - - - - - - . ~ ~ F ~ l $ 4 l MO - ~ _ _ - - - . _ - - ~ - - - _ . . . _ eAST AI7Ut"CIvM A_ ~~r~4~tP.C~. C~L~UL-h'CioN~ ~CWr~1 - - . _ _ R1w --1C] C o. s e Yn e nt - - ~ - - - - ~ "Z5 , C.'~'Si k_ 1 f_ f r ('a 51 ~70'P Qk 'DriVe.we,~ 2.Do"0 'CO ~ ~3~~ ~..1-Yh~~~~~~ . . ~ _ ~ _ a • ' . ~ ,rJ,~~t, .I'•`.•: . . ' . • ~ Y , • • . • . ~ • - - - ~1~f~~~ . - . . - - - - ~f " Ol~s: • - - _ ° _ - • • • _ . . ~ ~ W a.x e O.ns7 Slqt'.vq0.~~- - - ` - • • - . . . . . . . _ ►o° CY'oss- av, at - ~ - - , - , - . _ _ _ - e - • . . . _ . . - - - - - - - • - 00 ~~~a~ '~rnrrnrn+nm.7~!lG----_ _ . \ ~_+I. `C], ~i 67 BI. °_-•-p-- - ' 2.~~- 0•~ ~ ! - _ ~ ~~~f , ~ - - - ~ ~ ~ _ .__e . . _ . _ - - _ Q. (a • - . • • - ~ 1 - ~sI ~ . _ ...__.-''~r - ~ °.'~y,'• _ - - - - _ _ - - - - - - Ia.C}` ca.se,yr+e..wi- Tt1~ - f- - _ ~'~___-------5.a5` 5-2.5~ - -~~,.i ---------~.5+- - - To~ o~C Uri4eWau~ ~ rrf~...,. ~.-r... ~ ~ ....^_I~ E~~~ ` - ~ ~ ` ' . . 1 a . , ~ s . ~ n . . --L. A =L:'~~ ~ A - - - - • - - - ~ 5 v,c u1 e. $ oi+o r+s - ------_~____...m._ . . - _ ~_v_~►G- ~ `^r~_ 1 ~ ~ . . _ . - • - - ❑ r. a 5 i 8e w LA. Y i Id ' ..44Y. ~ • _ - _ ~."ZS~ I ~ . ~ ~ - ~ _ . ~fCm55 - cGonct~.~'~~r3. A~_ .~a WA~°c~... a.~s a° _ - - - - _ . _ - - - - - - - Rs - a~ •v - ~ • - _ _ . - . . L i ~ ~ } ~2 ~ } ~r { o, 5~ ~ ~ ~ ~ ~ 2~ ~ q . ~,5 ~ ~ ~ . 'I . ._q"' . - ~G i.~a o~•156 - _ . - - _ ~ ~ - - - .e. . ~ RAT T ONF1L Fi]FrlIUl_Fr I-iYDRC1LOC;`sr CIFrTE =8I' 1/95 DEilGNfGFt = F; W IhCMiJLEwIIV ~.~F1SxN "L" F'RQ,IEG T NRME = MZ L? I L.DME EAST I;3T ADT1I TI C11V DEScRaPrzaN = SI-OrMwATER DRAlNAG-E SUaAREA 1 = .17 AcRES suNH~EA I i,UNOFF cDEFFIci ENT = .9 SUBAREti 2 ° .33 ACRE~-~' SLJbAFiEA huleiOFF COEFF IGT EN'f = .15) l"OTAL AREA = .5 AGF+ES CClh'IF'OSITE RuNClFF COEi° F I LIENT ~ . 45) OV'EF:I_F;NL7 FLOW VALUES G t .15 L = 0 N - .4 5 .01 CNr^,!'+INCL FLE1W VALLlEi L r 175 ZI 5.4 z2- = 5.4 N - .07, B 0 S _ , OclB TD = . 30B LGMF'LJ7Lfl VALUES DUF: - 5.00 I 18 D 1 C) .64 ~ ~A - .6 4 f ~ BOWJST~ ING GALCULA'f x ONS - I7RTr = BI 1 I95 DE5I [33NEF: = 6; V! MCMlJL.h: IIV BF~~ IN "L " FROJEC'f itiCAME _ MIL?ILUI`1C EAST 1ST ADI3ITIQIV I3ESCRIF='TY CJIV -STl7RMWF1I`EFi ~RAI Ni.'aE t t InLen5ity Qdev. Van VcJLdt St.orage 0min. ) fsec. ] LirF. fFar. y tc.~.~. y 4CUo ft. l (cU. -ft. ) LCtd. ft. ) 5.0 -Z taC1 :3. 1B .64 259 9C) 169 10.0 600 2.24 .45 =;1f3 140 1~k9 15.0 90C) 1.77 . ZsS :~59 270 89 20. C' 1200 1.45 . 29 ~:82 :~6O - 25.0 1500 1.21 .25 39; 450 -57 T.O. C) 1 S00 1.04 . ?1 401 540 -1 --".9 715. C' 12 1 OCs .91 .18 406 6:1;0 y ^4 40.0 2400 . 82 .17 415 72 0 -105 415. 0 2700 .74 . 1 420 B3 C) -3 9cl 50.0 :C)00 . 6E3 .14 42`7 900 -473 55. c9 i[1 .64 . 1t 441 ria9I,1 -549 60. :~600 .61 . 121 457 1080 ) -6 s^..J 65. c] 71900 .60 . l:z 4 82 1170 -698 70. G 4200 .58 .12 505 1260 °7 5 5 75. 0 4500 .56 . 1 1 517 -8:71:71 BO. 0 4BOO .53 . 1 1 526 1440 °914 8v. ~ 510c) .52 . 1C~ 5 4::~ l~~s,s -587 9cf. C) 54C) 0 .50 .10 557 1620 T1z?6:~ . 95.C) 570C, .49 . 10 576 i: 10 -1134 1tac). 0 6000 w 4s , ac) 593 1eoo -1207 TNE MA}L TMUM STGRAGE xS i 58. 8679 C:IJ. F1". ~ 3he ti me of cancentrat Ion is 5 ma, nutes. The lJndewel opecl 41pW erut Is .3 c. i. s. 'CEIW YEA~'i STC]F►M CALC RRT I {]NAL FOhF"11..lLA HYDROLG]GY DA'fE = B!' 1/95 r3Ea I CNEF'# = h: W MCI'''IIJL.,KI N RAi I NC"L "PAV7 F"ROJECT €VAME _MI D T Lq€'7E EAST I5T ADll I T I f]N AESGRI F'°I" I[]N = 5T{]FiMWAl"EF: DhATNA~E SIJBA1=sEA I = .1 AC-'iES SUBAREA 1 fiLlNC]FF COCFFI IC IENf = .9 TL3°fAL R RkH ' = .I ALF;ES CC]I'"IF'OS! 1"E FiUNL7FF CC7EFF IIC i EiV7' = .9 OVERLAND FL.ClW VALLlES Ct .15 L - C) IV = .4 5 .01 CHANNEL F'LC]W VALUES L - 1 6C.s ZI = 40 Li = • LC7f N " .016 B S _ .L7C18 TTJ = .11 CC]IIF`UTED ►,lAlM,UES D[J R = 5.00 110 - 7.18 010 - .29 OA - .29 C.v.,r tib 0E] e.hi Iri 5 - 1r• ~ 4 ' o.It~ 3r h 'h a.33 ~ Iz kA~~'~~ Cur Jv►~~~,rt~p~ „ ~ ~ 'D 1 L o ~ ~-s ~ _1 ~ ~ t~ a ~v_. . t ~ : ~ _____.~.__~.._._e._._...~?~ ~f~ 4_~~• _G_~_~_~ U J~~ t v N S - . . - ~ - ~ - - - - - ~-I?~_[.~~ ry___~-~~H ~ - ~ a - - - - _ . . - - - - - ~ E fl~f AL • - - • ~ ~ - A~~_~. _ --(--k 5 q' ~ ~_l 8' -,Z,'~ w0 D ~-A~►pi v~F ~ , ~ i - ~Y~_l~ ~,~,v - 1 _~~~.;~t ~ . - _ 1 ~_D~a__~~~• - - _ F-ky ~ ~ - _ - _ - - _ - - - - - - - - ~-+~•-rr,i~Ekz.v'tou 5 0 Do~ z $,Z 72 f"f P coreq~C.v►n5 i~e,re-~.Tr'\ e~li~i b~~_~_~a.d ~~v+cl~~~.~_ r~.~ a►nss-~~, o.rea ~ ~ P ~ Z a ~~vra~~ ~ ` 2 ~Ty~_ ~ ~ZCa I $wrre~ ~)r'~jwell ~C~S~~'ti~'t'~.~~____.___._.--------•------ ~~.__.._i _ r „ - - • . _M_1U ILGM~_ ~F^+srt I ,~,~D i-~ ~o N 17'~ A►r~ f~~ ~C C A L~ u V~ ~~C t o ti~l ~ c=~r r'To ~ b t~ _ . ~ - - - AV ~''i ~ ti~ `~C ~ ~a~ D ~ A G F•.~1 ~ l'L F. F-~ - - ~ 9D FT,3 ~.o - - - - - _ . . ~ ~r ~ ~r - ' . Fi~ - • - - - ~--~~z~~.~~[-~' -2- I'D - - ~ ~'~7.1_~-.P t~.'~ ~f; S T. ti ~D L~l_~I 6 ~f~? . . . ' i ~ ~ R!~ W - - - , .W....____. . _ - - - - - - - - • - Ca.25~ ~a.ZS' I I - ~ - ° - - • - - . _ . _ . . c . y . ~ TaF o~r ~rive.wa~ 2.Dd~° - ~ ~ .w.., - ~r~~-~►~ - - ~ - ~ ~ • ° ` L - „ • y . ' • r ' . . ' ~ . _ ' ^ ~1 ~r -i ~ • . ~ • o ~1 . . ' . i Y~1 I!' i S~ . . zc F -$z'toYh ovlC.--C~►trb - - a.n~ _ _ - 10` Cr~ss- ~ec-t•- ov~ol r%re~ Sr~rA1~ ~ g ~ .~i _~a' ~ I ~'I. _ ~ _ 2.~g .p~_. _ _ ~~.~~0_5}~2•~8 ~ -~-~c~~o.5}(z.GB]~ 1.~~ r~~~. ~ fO • ~ _...6~._. ~ ~ ~ _m - 1 r . . . . Q'.~ ~ . - - - - ~ ~I • • - - r I~T \:C6 ~ / ❑ R ~ - . - • - j. ---------u.--- - ~ - - _ • - _ • - - - - ~ - - ~ j~ - - - - - - - - - - - - - - - . - - - - °1~•D ° v",L v+i . . _ _ i_ • ^ r1~ r ~ - ' - _ r _ - - - - - - r . w_ _....f.,. . = 2.n o"• A ~ ~ - _ ~ f~ f - ~ ~T~~:~rf ~ • . ~ - . • , ~ r. ~ GQ . ~Y~('~r ~ t 'slrii,..Nr...,a•~ . - • . - 4~ ' . , ► . ~ . . - ~--y • ~ f+ . . , . . - - - - • - ~ ° - • . _ _ _ - . . .a., - - - ` Swa1~ F~#$vm Go~e.. ~~.•r~ • - - _ . CL +A ~ ~'k p~ P. 4q 0.A~ - - - - ` 5.~5L ~ L 1i.~ • 5.'z5 J ~l i+ Cn, 5` _ --....__.~._.__._.W.._..___.~ _ a ' ~.~~3. '~•Z.J~ e.. . ^ . . ~ _ . ' - _ _ r„ s ;M,' - _ - .v,S~ • • - ~.o[]e 4•~~- - ~ ~ - - ~ • _ - _ _ _ _ - - - - - - _ . _ . - - ~ ~ .~Z 1~16 3S t- PTtvVA,5 ('~wr►~ - - - ~ - - _ - _ ~1v~ - - - - - - ~ . _ _ _ _ . ►3' ~a.s~,rn~.w~~. , . ~ - - • - - - . - - - - - - - ~ g.5~ - . - - 1.5 ~ - a . ~ - -~V7 .rr.-`r , r-...._~,~ ~r ~ ❑.D4G,~ F~•~F~. a r I ~1 i ` ~ 4 I a ~ ' : • y . o . ~ a , s. ; ' i ' . • . ~ . . [ ~ _ - ~ I T //A ` ~ r ~ ~4 J ~ - • Npry~,~,4 ~ .1•FT, - i7.13~' ~ ~,tHy~,~,e. ~0~~' . • Gwr ~o CrvS~- sec°tiolnot t4rY'e-o'. 'Ed`Nw1~ ~ w~ ~ _ ~ 5~(4.-47 s ~ - ~ ~ : , ` • p y- _ _ _ . • - - ° . •1• . _ . . _ _ . ~1~ ~ 1 ~ i ~ d"► 1 j - - - T - - ~ - ~ - - - It~YI I ^Tr~ _ ° ~ - t _ r . l . a _ y , . y . I p " ♦ _ : ' I!n - { • 1 C ~ s • A \ L ' - - --(J.lt(o~ -------_____11,~.~~~,`~I► ~ ~ 'J4.~I'Ilt~~'J ~~~Sld,~z_."_- C.~ L, w . . . ...~b`--° - • - ° • •i- - cr'Cs55 - ~ 4.~,.~ , ►•"I3/ ? . L~.~lv.~}(~.~.9~j o.ib ~-CsD : ~ ' 1 ~ ti'~ . 3.5S Fi RAT xOl~AL FORMULA FiYDRC L,QGY TlATE = 8J1l95 DESIGNEf: _ K W MCI`'[IJLk;YN BASxN "M" F F;Q,3EGT NAf'IE = h1 T L] I LOh'lE EAaT 15T ADDITI Oh3 DESCFi IP"i" I 0fV = S-I"CJRh1WATEf; DFiR INAGE '~°r"E1BAFEA 1-~ .19 ACRES 5L1BFlREA I hLINOF'F COLFF ICTEN3" = .9 SUBAFiEA .4 ACFiES SI..1BAhikA 2 F:UPdUFF CC3EFFT C IE6'+iT = .15 1'CiTAL AF1EA = .59 AL"RES GCllviP{]SIrE hIJNCJFF CCIEFFIG IEIVT = . y91 ~.254L:7~~ OVEF:LPAND FLL7W VALUES Ct - .15 L ~ 0 N ~ .4 5 = .01 CNAIVNEL FLOW 1+'ALLiES L 16"~ Zl = 4.5 Z? = 4.5 N - . 0, B - 2 S - . 016 TI3 = .167 C❑MFUTED VALlJES ' DUR = 5.00 I 1Cs ~ 7.16 OA = .74 ~ ~ BOwSrRIsvG CaLCULArxONS r~ATE = 8a r o 95 DESIQ►vER = K w MCMuLKz ra BAs IN "M,i F'RC7JEf:.'T NAME = MTI7lLO1IE EAST 1ST ADI7ITIO14 13ESCF'c I F'T T L3N =STOFr'h1WAi-ER DFiA I NA .faE t fi I«tensity Ddev. - Vxn VoLkt Storage (min. ) (sece ) (in.ihr. ) fe.f.s. 7 (Cu. ft. ? [CLk. ft. 3 5CU. ft. 3 ' J. C, 9 . 7111.10 1 El 22 9 J 7[.1 205 10. C) 600 -2. 2`4 . J~ 7-6' 180 - 1133 15a C) 900 1.77 .41 410 ~70 Y 4c) 20.0 1 i41t+ 1.45 • ~ "'►RC] 7-60 76 1500 1.21 . tH 44~ 450 a'-.. 30. C) f eoo 1.04 .24 4 15 i' 540 -e3 35.C} 2 100 .91 .21 4 6~. 630 °'167 40.0 2400 .82. .19 474 7220 -246 45.() 2700 .74 . 1°i 479 B].~) - 71 L-1 1 SC0. 0 30Cro . 6B .16 487 900 -413 55. :7300 .64 . 15 50~, 1790 -4$7 60.0 7,600 .61 .14 5;'.».,' 1 CIBO -558 65. C) .;900 . 60 .14 J,CI 1170 -62~~ 70. Cy 4200 . 5E3 . 1 ~ 576 1 260 -684 75.0 4500 .56 . 1:~ 590 1 1~150 -760 EIC). 0 4800 ...5 .~v 12 600 1440 ^84C' SJ.Cj 5 1 CjC~ •52 12 619 15y:•0 -911 9cf . C1 5$0i..~ . 5ci . l i fa :zlt 1620 -9E35 95.0 5700 .49 .11 657 1710 ° 1 05.'? 100.0 6000 . 4B .11 677 1800 112.' rHE MAx IMUM sTORAGE IS 2Q5. 30l i600rsi CtJ. FT. ~"fhe ti, me r-F conrentrat i on xs 5 mi nUteS. The Undeve1 oped +3ow dut z s .3 c, f.5. TEN YEAR STC]Rf"1 CALC ~ ~ RAT I DIVAL FC7F;MLJLA HYDROLOGY IyATE = E3/1f95 QEaIGNEFr° = K WM[:!''iULKIl'+` ~"iRSIN PRC7JECT 6VAP7E = rl lD1 LO1IL EAST 1ST ADDIT I C19V C1ESCRIF"TI{3hl =STC1RMWATER LJRAI NAG~ SIJBAREA I = .12 ACRE5 SIJBAREA I RLJIV[]FF C13EFF I G I ENT = .9 `[-C]TAL AFiEA = .12 AC1~iE5 Cf]MPCi{i ITE FiUIVCIFF CC]EFFI G I ENT = .9 OVEF;LAND FLC7W WALI.JES Ct = .115 L N = .~F S _ i) l CHRNNEL. FLOW VALUES L ~ 160 Z1 = 4Cs Z .2 = .167 ' . hl . C) 16 B 5 - .016 TI7 = .103 cOMPuT~D VALUEs DuR - 5.00 ~ lo _ 3.18 010 Z-4 OA - Z4 ~ u'C''~i 'r~e ~~►vY'+,q~ 4s.;~ 4-[]'~ L t)1~n'~ ~3 S~H ~tiE.~ ~t ~ ~`s ~ Q • ~1 I ~~~1 0.~ ~'►~i~~1'1~ p~ ~ ~ ~.~lllh0~, - a z CJ. l[)' ~3 e~-E1n a°~ w a~~ ~r ra.~' 2v.~i r a h~~ $ vf 3/z, ~1 D.L D ~or e- I - z h► ln v. 3.v$~ (0.1o~~~ ~ V.Fr ~ ~ ~~n ~ ~1 1 ~ { ~ ~ a e" ~ a{ d e-e-? ~ I - - - ' - ID--~_L ~_~!'1_ ~ ~ ~ r ~ ~77 ► ~ ry i ~ 533- - r" . _ _ _ . . ~ l ~r►°w ~ ~ ~ ~ L A~ , ~ 5 _ . _ . ~ . M ~ _ ~1.~.~ P._ ~ v~r'AL -~...~,__,_1 S_i_ - ~ Y ~,_4-1:. Fi•~' t.. I K Au.~-~------ - - ~ fi o o a f -f--- - - ~ ~ ~ - - ~ i- -~~,e~a '°-d~~' -~r~ • ; i A~LE _ ~ _ _ _.,~.__----_E. - - - - - - - - . _ _ _ _ - • - . • - • _ _ _ ' _ ' _ {y-. ~ ~3~a~ « 1 ~'F~ .Y._ ~ ~ ~ . . y.- .1 ~ ~ ~ V - ~ ~ . ~ ~ 4 _ r . ~ ~ ~ ~ . I ~ _..r~. • j«~ / - _ ~ C? ~r-~ s ~~~__~r e.0. cvr~s± d_,'~~~I~gti~le. ~ o~v.~ _ i~nciu~~~ a.s o~► _a~►~ e~_._ ~ STpYPGE 1N. - - - ~ - ~ - - 0~'~~...:...~~.arc~xP~~`~'~~lz_~F'f~~ 25I F1~--_ ._.e.. 1~,, 1 ~---__s..~ _._.a.. _w_. _ 4 - ~ - . _ - - - s~raf- P', G e o4 -_t_.~..,.~._...._...__...~~.__.._w...~.~_.~_.__4_.,_._.___.~_.__._._~_. . __.__a.~....,,.__.~_____.__ . __W__~4.._._~...__.~_~..___.___.~._._ p's N7 l) ~ "C 1 v N ~ALC~1t- 4~J 1~N[~ s:wt~ Aj IlY T t L F: E: f ~Tl • - Frt ~ ~`1 ~ 1.34 '~T•`~ ~ ~-~r ~ 7 \ ~ ~'v--f L"T- - - ~ ~ !b ~l 41 F~ ` t1v. 12~~~; tA1F1L o.~-j~ ~.AsT l a~ ,~•~L-;, 'T i~N ~VRP.INA~~ C~,~CUL►r,'S «N~ 'Kwr~ - - - . . . ~ $-lW - 1~ ~o-5e- YA~n`~ ~.2,5' . . _ _ , ~ ~-~►~,~`,~l7j L a . ~ ` ~ ~ . 1 L. • Q • . , , - • _~y ~ . . . . 4 . _ . _ . t . ;i - - - ~ wal~, gso~'~crvh Con~. Curla ~ 1 y L AnCt ~3 sqEW c~.~9~ • • ~ ~ - - - - - - - - _ ta : • C1C'o5~- 5~.~~"~~.7+~no.t r~'~`LCt D~C .a-M~A1~ 6.5" I' ' ^ ~Z.V~) 1 ~~~~1tiJ.~'~L~L'~a~` ~.~Lr ti • . _ F~~~ _ _ ' ~ .~_a. _ • ~ . ~ Cb . 101 ~ , . •,s~ - ~v~, - • • • - - . . - - _ • _ . _ - • _ - ~ - - - - c.s~.yy, e.hi - - - - _ _ _ - - _ _ _ _ - _ - - - - - - - oT -Z [][7~~ J ~ d`a ~..o ~ ~ ~ ^ I,.. -I_ k ~ ` y - e . a . ~ • ~ . ~ R ` y~~~=~~ ❑ ~ Z - - _ _ _ " _ _ o ti , . G - - - _ " ' _ ~.7`'_ ~1. V11 ~1 ~ ~ d~~ D yyly . - • ° - . . _ ~ .4---__._._ ' ' _ _ • _ . ~ - C9r'C' C`.c^f6 _ - _ ~ _..a...- - - ~J ~ - 18° • - - 0.n~ d i~~CWAtf- T-- 5 ect ~v'\wl__P,r e a- oi 'Seep,t e 21bo _R - _._1--- ~---L ~~~~1,~i~1~."L~a~} 5~[? (0•~'}~~.~~ 5 } v - . -•_----3 _ . . . . _ _ _ _ - • • - - - _ - ~..12. ~'C . ~ ' ~o. 1'~``~ r rS '~1 l'~_ 11r m f`'!~ ~ ~ f'v ~ T L 5 T r,17 U l`[ 1 a 4~' , t 4~~~ A.L e uL A.T L o ti S C l~w rA) . - - - ~3' - ~a5~t~,e.~n~•~ - - ~ - - - - ~ _ W._ ~ ~O+_._----- - - - _ ` (.5r - _ _ . _ lqy Y. ►v e,er4a1~ 7~ . ~ rrf~J;~~~iy113'-.ii ~~`ti~, 40 ~ ~J.C7~(a~l ~C S~T ~ ~~,'jI~`~I~~~ 7 • c ~ ~ . a' , , ,y • . ' : r ` a a , ' , " ; ~ . i • . l ~ , ~ . N_[~.t4~,~ ~T.FY. p.l-YI F-c-[ al~. asr~~l 5w~1~.51a~,e,-- I V+t. C.s.~ b w wl e. ~ a'i t o ~rr+ - • - - - rl~r~ ~ a 3.45 uw~ 7 F e~: r rA~~.~'._pL ~ - . - - • • • - ' , ~1,~ - - • . . . _ _ _ ~ F~IW ' G A- • ~i~Q Dr~v~wa~ - ~ ~~lti•~.~~~.~. ~ ~ a.c) l ti' - ~ - f - ~ 1 ' L _ 1 v - . - s • ~t 44 ~ - ti • a " • ~ ~ 1 ' r~ t131Ji.~ 1/1. f -i' aff[ . _ _ . o a l ~ ~ - • Ik"?►~,t~y~~y~7 - - wRI~.~ ~ro p~ . . _ ~ _ . ~ y ~ ; ~ ~ . e . . - . . . . ~ . 4.~.g ~ i.~~! ~~,~~-____~-~.~~e.~~14• ~ ~ .R3~ ~ ~ -po z k.9 ~ , ~ • o-i : . _ a' - - RATIqNAL FORMuLA HYllROLUGY DATE _8r11'9i DESIGNER = h; UJ MCf'IUL,.f:TIV BASIN "!V„ F'ROJECT NAME ~ M I Il I Li71hE EASl" Iv,T AUDI T ION I]ESCF`'r I F' TION = 5l"OFiMWHI"Eh C)FiA X NAGE .,~,~LiBAREA A=. 16 ACRC:;a SiJBAREA 1 RIJIVDFF (rCEFF IC TENT = .9 SUBAREA ^ - .27 ACFiES 5UBAREA FiUIVOFF C4EFFI C IENT - .15 TCiTAL AREA = .4: ALRES GOMPOS F TE F+lJNOFF CCIEFF TCTENT _ .429069767442 C7VERLANB FLC1W L.'Ai,.UES Ct = .15 L = 110 IV = .4 :a = . 019 CNAN[VEL FLC]W VALUES ' L 102 Z1 - 7. v} " L L 6.6 14! ~ . 03 - B - C) . S _ . 072 I"1J = . 207 C[7MF'UTED VALUES I39J R - 5.8S I 3 C, - 2.99 C~ 10 . 5~ ~lF~ .5 BC7WSl'RT lu(S CALGL.fLFi~ IONS DATE = 9/ 1 I4'5 DE5 T GNEF; =K W MCMULk. ~N E-IA5 t fV "N" F'F;C1wTEC"f CVAME I13 S x3Il..OflE EAaT 1 aT AL1I7I T i DN DESCRI F'T IO1'+1 = ST❑RMWATER I7RA I3VAGE t, t IntEnsity Qdev. Vin Vout 5ttirage (min. ) tsee. 7 4in. fhr. 3 4c. f. s. J (cu. f L. 7 LCu. 4 t. l (Cu. -Ft. ) 3.13 .59 2,1. fa 90 1410 5.8 ~r 350 2. 9? .55 305 J.~r 1 (3. c:a 600 2.24 .41 297 18[ ) 117 115. ca 90~,~ 1.77 Z 71 270 bz iCi, 12- [}i] 1 . 45 .d % 7153 _"6 C f -7 215.0 1500 ' 1.21 . 2~2 761 450 99 :30. Q 1.04 .19 -~-68 540 -1 7:? 35. Cs ~ 1 C) Gf .91 .17 37~~- 630 -257 40.0 2400 .15 381 72C.) 3 9 45. 0 270~.~ .74 .14 i B 5 81 -42-5 50.0 3000 .68 . 171 a~91, 9CiCx --v0 g 55. 0 L-1 C- 0 t? .64 .12 404 99C) --5B6 60. t:] 3600 .61 . 11 419 1080 s •-66 1 63.0 31900 . 60 . 1 i 441 1170 --729 70. C1 4200 . 5E3 . 1 1 462 1260 -79B 75. C1 4,~~'a00 .56 . f c1 47~ 17,50 ---87" I 80. i_~ 4800 . 5 7. . 1 c] 481 1 440 --959 85. C) i1Cf[.7 .52 .10 496 15,c7 --ICi::4 9[_I. [_1 5400 . Jc3 . 01'9 509 1620 -11 11 9-5. Cy 15 7C'U .49 . 09 526 1710 --1 1B4 1[=IO. U 6000 . 4e .09 542 1 E3 n is -1258 THE h1RJC TMl.ll"! aTC7RAGE I5 15:3. 39 31faCa91 CLJ. FT. - * The ti me ❑i concentratian as 5.826201 minutcs. 1'he LJndevel oped +10ws Out tS .7. C. f .S. TEN YEAFr STClRM CALC RATIC1NAL FORl'7lJLA H1'DRCTLClvY DATE = 8/1,I95 DE5IGlVER = Ir: W h1GMULE~~N BASTN('N" F'A-VT. PRO.7EGT 1VAf"1E = MI DI L..OIhL EAaT 1Sl- AI]I3I T I WJ DESCF: P'T1 0fV = 51"L7Fih1WATEFi T7 -fiFi Td'JAGE aUBAREA 1 .14 ACRES SUBARLA 1RUPJC]F F COEFF T C bENT 9 `CCITAL AREA = .14 FiCFiES co1'''IpoS I-f k FiLJNC]FF Ci3EFF T C TEIVT ~ .9 ClVEF;LRND FLOW ►JF,LUES Gt = .15 L - Cs N = .4 5 .Cs1 GHANI`IEL F1.,.C1W VHLUES L - I7,~ ZI = 40 Z2 = .167 N ~ .016 B - i) . 5 = OOB TT3 .125 GOl^'IF'UTED VALUES D lJR _ 5.00 • T I O 3.1e 010 = .40 QA - .40 ~,,Ee.•~ -~OivA be~+V\ V~ D.A-0 e.~ s e . ~ ~ ~ ~•D~d`~ ~N~~I~ -~or ~ ~ ~ ~1 ~ ❑.~3 Q.1Ci < l 2-16 "m idp- , ~~c~~.eI? ! I i _ P-.A.. _C_u -L A 7_1_0_N _ , i ~ 1~'r_ ~_~'`~~_.._--►t~_~P [~.~1T.~__-~'. vF F _l:T - - - - _ . rt fl ~ A L _ _ _ ~ _ - - - . - ~ - - - - - iT R _ ; - a- _._--_m_---._- t a cic) ~ - - - - - . f -D-0 17 Z ~ ~~vu5 E _ __i------_.~__.___ - - - - - - - - - - ~ _ _ ~ 1t►~P'~~-~lau~' ~ ` ' ~ r r i - - - - _._..___._rt__ _.T----- - - - - - - - - - 4-----_ ~_~~.~~-~s ~ ~ ~ ~ ~?-a - 4 ~ ~____'--_4 ~`~_~14 z • `~`~,_.t.~.~-~=.~ _ ~ - - _~...._.ti, - - - - - - - - - - k ; , - .___-_.___-__----._'._b._-__-----------__~.. - - - - - - - ~ _,.....____~A~__y,_ _s_.s__,____..r.~~_.__e_~ _ . _ . _ . I k P ~ ~ e a. . ~ t~Lo _ L~~~FS k ' 17~P•[N~~~ Cf~LCU'~~T laN~ ~'~t"`~ - ~ - - - - - - _ -P NN eM ER`C - _ . . 5-~ v Fz A ~ G-- ~ - ~ F.`~ ~ t L f= V-e ~ . _ . (1 •9 8 f:r~1~ - ~ - - - - - . • 13 t7Se- - ~ _~l~~~~~~~~ ~l~a_ F~,~ _ . ~_~f~ _~-9ro~~~•~L F~z~-^-~~2.$ ~rT3 3~9 -76 f~~ - - - - - , . _ ~ _ F ~ • ~ ~ ~ s ~ ~ . ' ~1vg z ~r 32 ' ' _ , - - - - ~ J ~ 1 I \ ~ ..~.J ~ _~~~4'~ ~7r~~ 1 ' x ~ r . l5`l ID'~-~? (3.55 FTL). 35 VIT3 w { ~ _lj1.9B V7. f'f , . . . _ . ~ - . . . --•---_~1,4~~1 f~r•z 3~5 ~r~•~ - - ~ ~r~r.~ ; ~ - - a - - - - - - - - - - - . - - 9 ' r _ ' i. . . _ . _ . . . . N~_ l2$ ~ ia ~ ~~p~,..~~~. ~~.a-~ 1~~ ~,~~t~►~~ , ~r~~~~~ ~1(,1,4 M) _ - - ~°a1~*jrj,1` fr; ~':rr-,~.1-~-:~,.~- , e_ . _ 80~ ~ ~.Q~~~1 ~z ~ = j, [ ~ F T. F T . ~ - 1~Q~-~+r~o..►. ~Yav.~~e. - ~.vn~ . L WYSG - - • • _ _ 8.5 4 ~ _ . . . . i F~71 ~ 0 ~.as 0.ci1 a ~ ► . 4OZ . ~ . . ' - - - -i:5' r ■ ' ~ _ ~ • e - a . d , 4, _ A • ~ ' a " s . ~ i ' ~ ~ • - ~ ~1 I1~~~~~'r: • w1.L'S~ 7 7 - - ----~orr,~~~.~7 F;T'/r~.__f•~,~~~1~f~7~~CC'~'~~ler.71~.i"T'~r J F~•~~~ C. a~~~~_• - _ • - . 0 Cwnc. - - - • • . - _.~V+Iii~~ ~f~'~~iQ'IY~~- - . '~V.'+i'~G -~p` - 5.56 ip° - _ ti.~3/ Oc? -2. o v ~ o r F'C W - - - - - • . . 3, 5S ~a- d - _"~~:~t~_~•~.~s__~~.t~~.~L~,~IaM~ - ~ . - - - - -~,W - - - ~ _ - - - - - - _ _ - - - - - - - - ~ - --.___..._i_~ - - - - - - ~.Iw 1 _-----~---r-h-..c,,'.,~-_. ~~:5~ -~,-5- ~-_l~5- ~ _ ~ ~o v.at~! ~'~.1Frt• 7~~ ~ ~'~d • . i - a - ~ . .ti 1 i • 1'i'~'f ~;~flf+'s+,,~f~ y~ ZS-93 1.1.'~'~~~~Y. l~~f7T~'!'17`~ , . ~ ~ ~~c " . . - c ~ c. . - . ~ _ - . - ~-~r~-~~-- - - ~ - ; f.~r.. _ ~ ~ 40 - _ ....._----r-~,__. _ - - - - - - ~ _ . - - - - r F - ~.6~~._.,~._.____.._~.,__!_a__~.~_...e-__~~_ - ~ ~ • - - _a _ _ _ _ _ ~..r.__ . _ - _ • • •-__---_4_.~. - • • • - • - } i ~ ~ . ~ F'►AT.C ONAL FC3F;iIULA i-lYDRL7LC]GY DRTE =BI x/ 9 i DESL GNEh =K W I`iCMLJLk;1114 BHSf N 0" PRL7JECT Nfimt'!E = !"IIL1YLqlIE LAST iST F^iIIDT fIGN I]ESCR IF'T I QN = 5T[JRf"IWRTER DFiA TNRGE 5L1BfisF:EA l, .56 AGFi'E:3 SE..IBF-1R1= A 1RUN{3FF C[]EFFT C IENT = SIJSARER 2 2.97 ACFi~~ SUBAFiEA 2 RUNDF'F CC7EFFT C TENl° .15 °1-OTAL RREA = -Z. 5:S ACRES CCII°1F'C]S T"I`E RUIVCIFF C[]EFF I L" IEN7 = .268980169972 OVERLRND FLOW ►JALlJES Ct = .15 = t75 N = .4 S - .n7.2 u CNAfidfVEL F LCiW VALL1ES L - 2 5 3 ZI = -:1.9 Z2 = B. 6 N B - ~ , S 008 TD = .482 CCII"IPUTED VAE..l..1ES A U = 1. ; .91 I-ff. CF = n ~ ~Fb . OA t~ y.,y1 B[:]WSTRI NG GALCULATIDN5 DATC =B/1!95 DESI GNER =K W hICMLJLKT N BAS T IV "U" F'ROJECT 3VA1''7E iIT DI l..Cl6IE EAST 1'-!iT AI)T1 TFT iCdi'd DESGRI 1= T i DPJ =STC]RMWATEF; L]F~~ INACE t t Intensity Qdev. V.Ln 'JraLtt Storage {rni n. ) (sec. ) fan.Ihr-. 1 [cLa. ft. ) [ELi. +t. ) (CU. ft, ) 5. Cr 300 4.57 4.34 1744 400 1144 10. Ca 600 3.20 3.04 2 443 1200 1243 13.9 ~k e-5 2.59 2.46 22750 1669 Ioeo 15.0 ~'iC][] 2.45 2754 1800 954 i 0 . 12n. C3 1.97 I. B7 2 7 7 2; 24CI 4 i i 75 '25. ~ 1 1500 1.68 1.60 2845 --,0CsCs0 - 3.55 aCs. C) IGOO 1.46 1.59 2- 8 a 9 7,600 --7 11 35.0 2100 1.30 1.2a. 2942 4200 1^''.5~ 40.0 24C1C1 1.18 1. $2 _fldll' 4800 -179~' 45.0 2700 i. oe 1. oLy L7,060 5400 -=40 50. c_) 3000 .99 .94 3087 6000 -2917, = Ii.=.f. O 3300 .92 .87 31Z1 6600 -3469 60.0 7 6 s:aca . €37 , #3 z ;~2 0 Fi 7200 71992 65.0 7900 . 8:s ' .79 K•21?7 7800 ---45 c 13 70.0 4200 .79 . 755 3363 ~400 -50-37 75. o 41500 .77 .7---, 4 98 9000 i502 BC"➢. C.1 484.)0 .75 .71 9600 -°592C.f 85. 0 5100 .73 .69 3732 $ 0iOC1 -6466 90. Cs 5400 .71 .67 3I3 _z2 g Uacao -6968 95.0 5700 .69 .66 37920 11400 -7480 100. t a 6000 .67 .64 7-1998 12000 -8002 THE h1AXdl"9UM STORAGE I S 1242.8736 CLJ. FT. * The time of concentration is 13.91144 minutes. 7'he lJndeWel4ped f1ow out i s 2 c. f. s. F T FTY YEAFi STCIRM CALG hRTTC1NAL FORI"ILfLA HYDFtOLC3GY Dr^i- TE = B! f/95 DESI C3NEF► = 6: VJ t'iCl"IIJL..KI IV BASI iV Go.. PAVl :~j PFi[JJEC7 NAl"1E = MI I311,.,O1"&E ERST I5T AL7DTTI Oiq DCSCRS PT I ON =STORMWRTE1; DRA INAGE SUBAREH 1=.22 ACRES SIJBARCA I RLENOFF CL]CFF I G I ENT = .9 • T[]TAL AREFt = .22 ACRES GQMF'LlSI TE F:UNOFF CC1EFFIC TEIVT = .9 C1VERl..AIID FLCIW UAL,.LiES Ct - .15 • L - s;r N - ,4 5 01 CHANNEL FLOW VAL.UES L ~ ./,,~~j~ .f.~.L. 4 1 - 36 L2 W .167 N .016 B = t:) S - .01 TD = .i47 GL]I'1F'U7EL] VALRJES L7UR = 5.00 110 _ 1e Ql0 - . 63, DA - .6:3 C-t.k's- 'b o.'~ L0 w ~ 01 Yl ~ ~ 3 ~.`C 4{ C- v Ur~ o~ ~ve-vtitvts CA5 ~ D.~C` v~ ~ ~ vva j 1~1a ~ O.Co3 , ~ 3.oOo~ ~o.t5Y Q~ ey\i v► o~ v4, a e- 1 r - - - ~ - lz-Bigs - - ~ 51N - - ~ - • - _ _ . _ _ _ _ . . ~ R ~ f~___ ti ~ A ~ ` - ~ ~ ~ Q.~..~ .~i. ~ ~ _ . .._T .~e_ M _ ~ ~ ~.C~. /~.c ~ ~ ~ _ _ _ ~ ~ ` __y _ - - - - - - - - - - - - - - - _ . _ ~.v~_~_.~_1 ~ ~~0 F~•~. ~".~~~~..E'~ P'~• . _ ; - - - - - ~ og ~ ° - - ~ - - - - - - - - - _ _ _ . ~ - - - - - - - - - - - .-'Z,D'DID F-1. , ~ z O'° v IMF'ECcV[auS 2.0(7~ Z~_ i , -3 S 3 s►~e are- o, C.oYval~et e- Y.e-!Ik~ av\~ ihCJ u~e- ~nsi-~~ O.r~.a. , -i~ ~ - - - - - ~ , - - - - . !T-4 • I - ~ ~ ~ ~ W 5 r ►y^+g ~ 4 _ ~4 ~ ~ ulcs~ [~Y r ~ t ~'~1 u~'+N_~.~~ ~ ciS Dui)H _u D I _ _~Y_.__ ~ m.~,__..~., _ _ v..Y~~. - - • - 13_3_~ .F 1. ' ~ ~ , r ti N `T k\1 ~ u. P- F; ~ P , ' • ~ (.t ~ ~j ~u D . ~ ~ ~ ~ ~r ~ [ 5 ~ ~ ~ , ~ ~ ~ T~ } ~ a~ ~ ~ `r. ~9 IF~" - - - $ ' ' F -L ~1D - P; ~-T 3 o .M G L1 L F~T i C7 4d 5 . . ~ - _ - - - - . _ _ AN - - - - - - - _ a . *a 1 (07 F T /~T • . P ~ u Q ~ L . ~ 1 ~ • ( ET.- ^ .~~;r,,~~~~-r~~~. _►r~~ ~-~.j z - - - I Fr. ~'\~.1a~ - - 5wa1e 5ottO+rr+ v55~ 5ec-~in~r~~,l ..~w ~•~'~Ep r~ ~ 6 • 0'`~'1'~ - • - ` • - F-f W ~ f ~ ~ - a - _ _ . _ _ • ~ Y,~v.. _ . . . _ "~"j Q y~ p{" IN~YVDIL~ r , _ t ~ • -Y . I f 1~. a r!`~ . • - . . ~ . . _ - - - i. ~r~ ~ ' ~ • cJ.[31(a47 F~.1~T. • 1` ~ { . ~ ' ~ . ~ v ' ~~m' - ' 4 0 - i n' _ ~ ' ° • . 7 a G ~ • • . ~ 7 i ~il,~ ,ll;ir%~il~', ir.'~ •~~~~'ti77' ; Y ~7°i.;Y1'~: f ~ F~-4`~ ~ ' I I ~ ~ if A x C, - ~ ~ ~ . . _ ~wOA e- CSo~toyv,,~ +vl._. - ~"g.~' • _ Cr~s~ SeCt;~nal A19 ' ~•9~ Q.ib z.0 a ~ ~ ■ ~ - 3. 55 RATIQNAL FORMULA HYDROLOGY I3ATE =B/l/95 I]ESIUNER = F•w W MCMLPLKIN BASTN "P" PROJECT iVAME _!IT D F LOI`1E EAST 1"aT ADDT 7IC]N nEscRzPr IaN = srORMwATER DRAzNAGE SLJBAl:EA 1=.23 ACl`;Iw,fa" . S1.3BAREA 1 RLJNQ1= F COCFF ICIL=NT = .9 SI.JEiAi=iER 2 _ .57 ACRES aUBA'FiEA : RLJNCIF F CC]EFFI CIENT = .15 1"OTAL AREha^ ~ .8 F3CRLa COh'lF'05 T 7E Rl..IIVC]FF GR£FFI G I ENT .365625 C3tlERLRND FLQW VALUES C: t = .15 L = 375 N - .4 6 - .012 CH€;IVIVEL FLC1W VAI_LJES L 1 68 71 = 7.3 Z 2 _ 8.6 IV . 0:~ B _ 0 a - . 0l'.' l-I3 ~ .232 GOMF'UTED VALIJLS L?UF: = l 5a . 61 110 = 1. 88 c 1.5 W .559 BOWaTRING L"ALCIJLATIC3NS 17ATE _80 1 I'95 T3E51 GNER = k: W h1Ch3ULh: IN BASI IV "F" F'F:OJEdvT NAME = h1Z L! I LOIIE EA51` 1Sl° WDT? ITIiJN I7E5C~'iIP7TOIV = 5l"O~'rMt+JAl"ER LfRF,INFIC;E t t Intensity Odev. Vxn VOtit 5tbrage fm:Ln. 1 (sec. ) {a.n./hr. ) {c.f.s. ) (CLi. -ft. ) iCLt. ft. ] (Cu, ft. ) 5.0 ::100 7. 18 . 93 ~;74 700 74 10. C) 600 2.24 .66 527 6047 -73 13.6 aK E117 1.00 .55 602 217 - ¢~'..15 15. C4 9C'3C) 1.77 .52 61 C1 900 -290 iCl . [ 1 1200 1s 45 . 42- 627 j iClf.f "'5 7, 25.0 1500 1.21 .755 624 1500 -e71 :710.C.l 1900 1.04 .70 6 ,2 1~~10 -llbe 35. 0 i4GC) .91 .27 6 7_; 2100 -1467 40.0 2. 4 z:l0 .82 .24 64 -2 2400 -17_5 8 45.CF 2700 .74 . 645 2700 -2055 50.0 ::,,n()rj . 68 .20 615 2 71000 --2 73, 4 5 55. 0 =:31 0 0 .64 .19 670 7_,:7 ,Cf0 -26'.[] 60.0 36(;)Cr .61 .18 692 L 600 -2908 EaJ. (D .71900 .60 • 17 727 .w900 r sl.77' 70. 0 4200 .58 .17 760 4200 3440 75.0 4500 .56 .16 776 4500 -3724 e0. i_) 4SOC,i . 521 .16 7E37 4800 --4 1:) 13 B5.0 5100 .52 .15 B1C) 510(] -4290 g~'J. 0 54([) . 50 .15 8i 0 5400 , -4570 95.0 5700 .49 .14 857 5700 -4843 100. t's 6000 .48 . i$ Bei 6000 -5119 THE MRXIMUh'I STOF:AGE T 5 73. 9203. CU. F f. ~The ti me a-f concentrati on is 17,. 61 1 i 1 mi nutes. 7he LJndevelopeti +lnw OLtt Is 1 C.f.S. l-ECJ YERFi STC1FiM CALC RATIONAL FORMULA HYDROLflGY DW7'E = a/1l95 I3ESIGNE1=: = k; W MCMt.lLKIN BPiSTPJ F'ROJECT NAME = MIDTLqZIE EASTi 1ST AIlDTT'SO1V DESCRI PT IC]N =STCkRE`3WW7'ER DRATNWGE S#JE;ARER I=.09 AC~';E.-~ SUBAREFa 1Rt.lNOFF CQErF ICTENT _ .9 TOTAL AREA ~ .09 AGRES COhlF'O5 T TE RlJNf7FF COEFF IC IENT ~ .9 flVERLAN1J FLC]W VAL.IJES Ct _ .15 L - C► N ~ .4 S = .01 CHAIVIVEL. FLOW VFaLLJES L = 169 ZI _ 7~ 6 Z2 _ .I67 IV - .016 B 0 7 " • 01i TL - .102 GOMPUT~D VAL..uEa DLlR = 15.00 110 3.18 0A. 0 • 26 QA ~ .26 1(le ~ ~J~ 4 ~a~ t ~C3~t7~1 ~~1 ~~1 0~ ~}~]~'V1►'y'1'[~ Vk ~ o .1 Ql Dqpi'h es~ ',"~ke-r o.$ elvt~'r omc e CkS ~ ~'~8~ ~nr ~ c. ~ ~ ~ ~.1❑ ~ p.l~ t 1 h ln ID.z~ . , +D.l e)~'~- C.vr~p OVe.►n►v\~ ~~~e.~.~ - ~ r _ _ _ - - {2 l_t~ A C~-~ - A ~ G u i., P,`C.t ~_ta 5 _ `~,'~i r~*t - - - ~ - - - - - - - - - - . _ . . ~ g ~s - - - - . . . - a Z '14 C t..C~= ~ - - - - - ~ D;~1 - - - - - - -4 , ~.tv- I7R~v - - - - - - - - D ID ~ ~ ~ - - _ . ~ - , - - - - - _A__~.aa~--_.~._._.~~._~avs.~s_~--- d - - - - . r . . _ _ _ - • - - - - - • ~ - - - - ~ ~ ~ - - yrA"P~?,.4 svwS _I ~ `.'SZ F~:- _ACR~ - _ I~..,►~'~~..~~R~.~.~_ ~~_...._w"~~.~~~~ l~~_..~--. - - - A. ~ ~.....~.~..Ep...._ .4.~~--- - ° . . - - ° ' - - - • - - °-•--~._.._.___y.F...a__---..~___.__...._.._.~_~_...._-•°_-------' - • ~ - " - - - 3 f ~ ~ 1 V~A~~ ~►~~~~ISo~~~. _ _..__~~_r_. - . . __,_..~_.~_r_. _ _ . . . _ _ ZC]t"~.Sf wro.~ s r- i _ ______..__.t-`r•-- » _~v _ F;.Qvq re+n~ x ~ ~ s uwA- la s Fi. . _ .,~__..~k.e~pe .e....~_.._...~....._"'_ ""'..r.~.-... .e e_....e_......4_..w.,.r_w. ....a_._._.... . ' . . - " ' _ . - . T-T - 1~.~3~ ST f~.17_~►~!_DI~1 ~~_~5~~~_~ ❑ I~ R. k iN AG ~ C. ~ C L1 L F'~~ 1 D 1'~1 5 ~ y,~ ~ ~ 7-0 614 - . _ - - 1 f Z ~ ~ (-900 ~36,a1~' _ ...,_t~ ~ .~(1.9$.FI'L}'~ l - _ ~ , _ _ ~~~~_____r ._~..~.~__~~__G?_.~~.:r ~ _ . _ _...F S_~- - ~ • ~ ~ ~t;~} lv. ~ ._~2..7- j ~ , ~ ' VF-~l1"KGV- Cp.L C. U L-AT iONS w' r~►~ - - - - _ . . . . _ P~~ld~ - - - - - - . - -~3'-- --~t~.S+e~,~e,+n~- - - - - - ~ - - ' - - - - ~Co~ ~7rtv~lNa~ - - y ~`l1J.~~y . - . 6a~ ~ 4.O l!n`1 ~r X• ~~Tl .~}+~FP=~F`~IPI~ ri, ' .1 - 4 A° + ° ' i ' e ' . f r 's . ~ ~ ' ~ ' . a Y l ♦ y • ! : T. j,FT. a 5 ` - - - - - - ~wal~.-~a~t►~r,n - • - - Cor 63 5 5 0, l e- . ~-z ~ $.~.9QD p~l • • - . • - - . 7r ~ 3 ~ ~ ~ ~~fi ~ i - - - - ~ - - W . , . - - - ~!w ~ ~S e- va e- vx~t -Cu g af Drivewwy 4 . f I~!'i n'• _rr ~ I.~. ~ C~ {!a~ ~°~i . f ~'i. , ~r~f'.~~r1~.,`Yf 1~ ~ ti• r a : i a i a - ~ I , ' - ' J '-~'r a _ , n . : ; . . , • ' . , , • . s a ' ~ • ~ . ~ ' ',1' lii,l',I~~ .r`•,, _ ~or~, l1G~ FT•{FT._.f ~~`-'~17~~~"f~l.~7I~[~~~:Y1'h''- t ~ ~~.~t~• - - -ti - - aZ ~W~ _ ` • 0 y'~' ' ~ 5t0~ Cak~t. ~ Swwl~'~o~~ia~,~ _ _ . . _ . _ _ , C~u•~ ~ - - - • - • - " • - . - - f co 9 v,ib ~.ov . ~ ~rI ~ p Fy~ r+. 3. 5S a~ a~;• ~h- RAt x tiNAL FQr,MuLA HYDF:OLOGY 4-+ DATE S/l/95 ~ESTGNER = k W MCMuLKIr BASIN iir'~ia PROJEc`r NAME = hlY DI LOME EaST ~ST aDDr r rOra DESCR IPT I UN =STORMWATER DF;A I lVAGE SUBAREA 1=.49 AGIRES SUBAREA 1 hIJNOFF L:OEFFT CI ENl° = .9 SUBAREA 2 ° .58 ACi=;Ea SUBAREA 2 RLJIVOFk= CUEFF T G T EIVT = .15 I-OTAL AF'iEA = 1.07 ACF+ES COMP❑ST TE RUN0~~ ~~~FFICIENT = . 49345794~9: OVEFiLAN17 Fi..DW Vr'i-LiJES Gt = .15 L ~ 0 N - .4 S _ .01 CHANNEL FLOW VALUES L. _ 39, ZI 7.31 L2 _ B. S N r .03 B - 0 s - .019 I"D - .323 COMPl..lTEA VALUES i] LJR 5.00 • 7.18 c~10 1.68 , a - 1e b7 BOWSTRIfVG GALL`ULATIONS I7ATE = elI/95 DEax[.~NER = K W MLf"IULKII' BA-~", IfV "D„ PRQaECT NANE = MTDILC7h1L° EAST IST ADI3I7I(1N L7ESCRIPT YON = STORMWATER DF:A I NACE t t 1s~ten5ity Odev. Vx n Uout Storage (rriin. ) [sec. ) finr /hr. ) (c.+.s.) ~CLt. ft. ) (cu. +t. 3 (cu. ft. ] 5. C) 300 3. 1 B 1.63 675 94) 585 1 C). C) 600 24 1.18 8:F0 18ceF 65(1 15. C) 1700 1.77 .9--, 9-_ 6 27CI 666 20.0 1200 1.45 .77 99°7 ::,60 67,7 iJo0 1500 1.21 .64 10iv} 450 J/J Z:10. C1 laUC7 E.04 . a~ 1044 540 504 55. C) 2100 .91 .4B 11=158 630 42e 40.0 2400 .82 . 4,:. 10 831 • 7 20 :w 6:; 45. C) 2700 .74 .::~9 1 095 810 _ 285 50.0 7000 . 68 . ~5 1114 900 214 55.0 .;:~00 .64 .34 1150 990 160 60.0 3600 .61 .712 1192 1080 112 65. C) 719(:)0 .60 . s a 1257 1170 67 70.0 41200 .58 . ~ Y 1 L 1 / 1260 57 75.0 4 15 C) Cf . v6 .29 1 7,4g 1Z50 -1 80.0 4600 . a:3 .2€3 17-72 1440 -613 85.C) 5 2CICI .52 .27 1415 1530 -115 7c). Ca J'tLeL£ . 50 •26 145i 16 20 ^167 95.0 57i f0 .49 .26 150 1 171.0 --209 10r). 6000 .48 . 1546 1800 -254 l'HE 1']AXI h11JM 5 TORAGE IS 666. 42{912 CLI. FT. ~ The ti me o-F concentr°ati orr is ; minutes. The Undevel oped f 1 Ow aLt-k 1 5, . , C. 4. S. TEN 1'EAR 5T❑RM GALC RATIONAL FORMULR HYDRQLGGY DAZ'E _ 61 1I'95 L7EST~C"il!lEFti = k; W C1L1`1LJLI''xN'~ BASIN( °'D" RA~,l~ . ~ PRC].7ELT NAC'1E = MID31..C3ME EAS°C 1 aT ADDI7 ION T3ESGh Ir'T T ON = STORMWAT~R DRA I3VAGE Sl3BAREA 1-= AChkS SUY:SRREA IR1,11VC7FF CDEFFICIENT = .9 1'C1"1"AL AREE'd = .2' FfCRC.r'a C[]MF"C15 x TE RfJIVOFF GOEFFI C T EiVT = .9 C;kVEFiL.AND FLOW taFll...l,JES C t = .15 L - C.a N - .4 ..~'s = . 01 CHANNEL F LOW VFSLUE5 L -:a 5': L 1 = -sb Z2 _ .I67 N = .016 B 5 -.0i9 TII = .133 COMF`UTED VALUES DuR - 15. Csc r 110 = 3.18 010 ~ .66 QR - .66 C, v,rb C]ve-ni4,~ c.k L ow ~,oi+n't (\Jer cler T,)riv e-} ~ -Z 'BF = 0. 6-1+ 10*a1A Ih ~i ~ ~t1~t' J 0P eYt ► v1 3 kA , 0. k 3 4 G= 0.66 cis aJ-3 CZ ; S.DSI 4 ~ z ~ 0.1ci < l ~ 0.66 e 3,.[3$`~ t H~ Az 3.01$l C~a~la ~7~e~ni~nc~ •y vvt ~e ~ ~e~.~ i } l ~ - ~ ~ ~ 9 5 - - i Effi~\- 2-p.. f i ~ . . - , . _ . - - - - . . . . - - - - - - ~ ~ D d~ 13 F T-z - - - - - -i~REr~~~ 3_._.~7.~!~#_~.~ _ ~~.~D~7 ~~i,~ - - ~ - - _ _ _ _ _ - - . _ _ _ . _ . . _ ~ . _ _ - ~ - - - - ~ - - - ~ _ ' ~`-~z ~ o ~~e ~..-?~~I • - __d -v- - - - - - ~ - _ _ . - _ _l tt•~E~+~ tp~ 5-~' ~`a---r-~_~_"~_ _ ~_~.~.43_D ~ _~-r~ ~i_~a_w _ _..____'~-2 ~ f~'_C~ ~ _ _ _ • - - - - , . . {Dioi~a~ri -----~I.y l~'•.#' ~q . , -,,~•_~N:~~~: ~ . ~ 4._____. I . L ~~f~C~~ a~ I ~ ~ ~ • ~..w_~ - . . . . W A Lf~ 5 . - - _.____.___._,____.5 ~_.~___~~.•~.--_?~~3r? . _ _.__._...__~.._-----____.,w.._v._.___._ ~ . ~lL~~~OM~ ~,~5"~_ ~1~~ ,~+_1~67[`CtO[`•4 _ . . ~~i~~~~ F~ t N~• G f~ L~ l] 1~. f~.T ~ o ks m ~.~t,k LF. - ~ ~ ~ _~zt~°~(►~'~ ~ -~.~~$,g ~T.`' •5 ~ FY.2-) . j - ~ - - - - - . - -lr-~'1~-~-ti-~--ti~~~.~ ._~`~_L~ 1 Yi.9~ VI,~~ ~ .1\0 ~r~ - - - : _ _ . _ _ _ _ - - - J s - - - - ~ . . - - , ~ ~ f'C. (6c)1 X~ ~q 8 ~ . ! ' - ~ ~ ~ I~ l N#~ C~. ~ AL G la L~ kT t D Cy 5 - - . _ - - ~ FLIW .~a.5-P-rf~ eVA • -J' - • _ , ~Co~ n~r ❑riV ~~Na~ - - - 7•.'~r,~-` l,r~~~..~~- - - - ~ -w I - o . o l F ! F T ~ ~ - ~ °f~~l~ ~ • • ° ~ , , - . , . . . , a , t - ~ , 1 + • a ~ ^f . a [ ~ - . ~ y ~ l~] i 1 i ~T./FT. Slo~~ 1A 0 r~~~~ C urk~ `t i.o.v~~,t ~~yq o,l~. _ - - • • • . - . ~ a ~ _ - r ° - - ~ -~_,..~3 ~~~~Q•~~l`~'.~.`l~ ~~~~(a~,5~f~3.~'~} - 1.~~ F~.L ' Ni 7-9`~ 3_4 5 ►-o`1 0.`tt . ~ r,OZ~ _ = o• ~ ~.,.4 . . . _ , . . . _ _ - ~,5` _ ~ I.5' " '~vQ of vewo~y S' ~ . . . ~ ' { • 1 ' u " ! . ~ ~ ' 'ti 4 ~ : D \ ' ~ ~ L s 5 L'~ a J \ ~ y . '~:iA ~i~ F ~ry_~ 1 r-IF'~,._ . !~~►~`-7tl~`~7~1~''~~h°~ ~ f~~~~, _"`k- a)a c Sm B ~ _ ►D` 4.~`l i°° 0-3/ ~ r .o, ~ ~f~~ ~ 1 • ❑1 Q .'`iCb 0 o I • ~ - • ~~T• - • ty;~` q ~ • . - i . 5 C f . FtAT I ONAL FORMlJLA HY17hdLOGY IlAYE 1 r 9Z DCa 1 GhlER W MCMiJLI•; TN BAS IN F'ROaECr NAME = F'i ID ILQI''IE LAST 1Sl" AT]D! "6" It3N - TlE5GF;1 PT I i3hf = 5T4fiI'EWA TER DRA.C IVWCE E'sIJBAFiEA 1-.2=; ACRLS SlolBlli=iEA 1 FiUNOF= F GC]EFFT C I ENT = .9 S4JBAREA _.29 AChES aLiBAREA 2 RUNOFF GL EFFIC T ENT = .15 TOTAL AREfi = .52 AChLS CDMP0STTE RLJNGFF CC~EFFI C IENT = .48173076923 i7VEkLAND FLC1W VALLJES C t .115 L - Ci N - .4 5 = .01 CHANhILL FL.OW VAI.,I..lES L - 265 Z 1 = 7.7 Z Z = 8.6 N B - C~ S Q1 l"T] = .276 CU1IFIJTED VRLUCS DLJR 5.00 I 1 Ca ~ B? OA ~ ~~f:]W:a°!"Fi 1 Nfi CRLCI.lLR I ON5 IJATE =811/95 1?ESYGNER k: W MC3*iRlLbtiTV BAzlN "R" PI;CIJECT NAi`7E = I"4I Fl T LCi6'~~ EA8T tSl" ADDT"f ION DESCFi I PT I[31V = STDRMWATER f3RF1 I NAC.~E t t Tntensity cIdev. Vrn vOLwt Storage (min, 3 Ssec. J (xn.Ihr. ) (c.f.s. ) (cuo ftP 3 (Cu. ft. ) tcu. ft. ) 5 . 0 ~ :z;~~~ I8 . 3~? =~'~~F 9f:y :~f~ 10.0 600 2.224 .J6 7.94 lSO 21$ 3 a. t:1 900 1.77 .44 444 270 174 20. C1 1200 1.45 .1.6 47;:~ 3. faCs 1 1:: 25. C1 15[10 1.21 .710 4E36 45CF 36 30.0 1 bC1C1 1.04 .26 496 _5 4C1 -44 Z55. Cw 2100 .91 . 2:' 6~.;C) -128 40.0 2400 eE3i 1 514 7}r.~ -206 45.0 2700 .74 .19 519 E31 Ci -291 51 C1. CY 3000 , 6B . 17 ~~e 900 -7-12 55n0 3'300 .64 r.L Ci 7 7C_Y -4 4 J 6c1 . 0 .7.600 .61 . 1 ..~.J 566 1080 °5 14 E35. C1 ~y900 . F7Cs# .15 5761 1170 -574 70.~ 4200 . 5C3 .15 625 1 260 -6 35 75.0 45i:)() . 56 . , 14 640 13 5 0 -710 BC,. Q 4800 .5z . 1' 651 1440 -7$9 e ts . c1 5 l' C.1C1 .52 . 13 671 1530 °859 90. C) 5400 .50 .I Z 6e9 1620 -9711 95.0 5700 .49 . 12 712 171C1 -998 10010 6000 .48 .12 7L,4 1800 -1066 THE MA?L F MtJM STORAGE IS i aU. 22918 Cu, FT. * The tx,rne of concentration is v minLites. 7he LJndeere1 owed f'l aw raLtt :Ls. .3 c. i. s. 1'EN YLAR STORM GALC RA'I' I (JNAL FORMULA HYUROLCI(aY DATE = 8/ 1!95 DES I GNER = k;; W MCMULk:I N BAS I N "R" F'AV7~ _ F'ROJ ECT NAME = M I D T L01`1E EAS"I" 1 S1' ADD T T AN DESCRI F'T I ON = 51'ORMWATEFZ DRA 1 NAGE SUBAREA 1=.lb AChES SUBAREa 1 F;UNOFF COEFFICIEN7 =.9 TOTAL AFcEA = .16 ACRES COMF'OS ITE RUNOFf= COEFF I C I ENT = . 9 y OVEF;LAIVD FLOW VALUES Ct = .15 . L = i► . N - .4 S = .O1 CHANNEL FLOW VALUES L = i?b5 • 21 = '6 ' ' Z2 _ .1b7 N = .016 • - Fi = C) S = .01 TD = .lti " - C01`1F'UTED VALUES • DUF: = 5.00 Ilci - 3.18 l? 1 C) - .46 QA = .45 Cv,r\, pe~.,n►hg a~' Low ~o~h~ ~Vercler Dr~ve~ ~ Z = 0.10-1 ~ `Co~a1 I~e.~9h~t o-~ o~ehiv~c~ ~ H= b•13 ~~P-~~n of W0.~e.r at 2.h'~rahc~ c-Fs -Flow , r Z h-~ 1n o 6~ 1 Z Q o.4 Z 3-D$-1 ~ Z 3.o~~ ( D'U3)3~Z z 3. ~ 8 a F' ~ , CuY''o oVey~iv,9 vyide ~ $~deep 5impson Engineers, Tnc, Pro)ect: Thirty second Avenue h 909 Arganne RQad 926-1322 dah Nn.: 12838 5pakane, WA 99212 Dise.Hu.: 0uatrapro street de5zgn File Hame: Midil4me East TYpICAL SEC3IOH DATA 23-Rug-45 Roadway half width ENTER--> 32 45;06 AM Raad Name ENT€R--> Thirty 5eeond Avenue left or Right EHTER--) Right Curb Typa TYP£ 8 GDUNTY 5tation Interval ENTER-°> 50 MINIMVM MAXIMUM Curb EL. Curb EL. Edge Paue. CEHTER t SLOPE EDGE D15T. ~ SLQPE E6GE DI5T FROM (-4.5% E-2% ta Gutter IINE CENTER- PAVEMENi CIL TO GIL TD FAVEMEHT EdGE PVMd.from EJP 4 FROM I!P + SFLECT- pe5lgn )np Curb STRTIQN ELEVRTIOH LINE €LEVATIaN E/P EDGE PAYE t SLOPE TO CURB CUR$ HGYi CURB HGT) ED ELEU $ GRADE $ Grade 2250.40 2025,16 2025.18 9.70 0.21 0.44 22.34 2024.63 2425.15 2024.75 -3.92 2304.00 2424.96 -4.36 2025.02 14.00 0.40 °0.32 22.00 2024.48 2425.04 2424,75 -3.20 0.44 2356.84 2424.49 -0.86 2424.54 9.80 0.51 -0.85 22.20 2423.94 2074.51 2474.28~ -3.12 -4.83 2440.44 2424.92 °0.96 2424.06 14,04 0.44 -0.96 22.44 2423.57 2024,04 2023.90 -2.66 -0.88 2454.40 2423.51 -1.02 2023,59 9.94 6.81 -0,44 22.10 2023.05 2023.56 2423.46 -2.50 -4.88 7540.04 7023.40 -1.42 2423.48 9.70 0.82 -1.87 22.34 2922,53 2023.45 2023.02 -2.14 -4.88 - 2554,00 7922.64 -0.72 2022.74 9.54 1.04 °4.68 22,40 2022.18 2022.71 2022.58 -2.61 -0.88 2600.00 2022.28 -0.72 2022.47 9.54 2.00 -0.54 22,50 2071.91 2072.44 2022.14 -3.44 -0.88 2654.49 7021.87 -4,82 2021.93 9.60 0.63 -1.08 22,44 2021.37 2421.90 2021.74 -2.94 -4.88 7744.44 2921.45 -0.84 2421.58 10.60 1.23 -4.70 27.40 2021.47 2921.51 2021.26 -3.54 -4,88 7750.40 2021.03 •4.84 2021.16 10.64 1.23 -9.84 21.40 2029.65 2421,15 2020.82 -3.54 -4.88 2840.04 2070.61 -4.84 1020.72 10.30 1.07 °0.88 21.70 2420,20 2024.70 2424.38" -3.59 -0,88 2854.00 2020.51 -4.29 2024.44 10.14 -0.50 -0.52 21.90 2019.93 2074.44 2424.12r -3.55 -0.52 7994.00 2420.40 -0.22 2020.41 10.70 4.20 -0.14-1 21.80 2019.88 2020,34 2020.22 / -2.83 4.20 245~0'Oy 2424.39 -0.02 20 ,47~~T1d.40 4.?] 4.12 21.64 2419.95 24P4.45 2424.3]~ _2. 1 0.30 04,0 02029.33 -4.1Y (20 ~074.3~ 11.04 4.18 -4.24 71.40 2019.86 2420.35 2020.251 2.49 -4.24 3454.04 2920.22 -0.22 2420.~3 11.40 0.09 -0.24 71.00 2019.74 2426.23 2470.00 -3.15 -4.54 3100.04 2020.11 -0 ?2 2424.18 11.44 0.61 -0,14 70.64 2419.71 2420.18 2019.75 -4.27 -4.50 3150.00 2019.85 -4.37 2419.88 17,14 O.25 -0.35 19,90 2419.44 2419,90 2019.54 -4,15 -0.50 3204.04 2019.59 -0.52 2419.50 12.10 °4.74 -0.76 19.40 2019.06 2014.52 7419.25 -3.45 -0.54 3254.04 2019.33 -0.52 7019.23 17.80 -0.85 -4,54 29.20 2018.77 2914.24 2419.W -3.29 -0.50 3340.00 2019.14 °0 38 2019.06 12.40 -0.67 -0.34 20.04 2015.61 2419.48 2418.84a -3,49 -4.44 3354.00 2019.16 0.04 2019.07 12,24 -4.74 0.02 19.80 7418.63 2019.49 2018.72J -4,42 -0.16 3400.40 2419.18 0.04 2419.15 12.30 -0.24 0.16 - 14.70 2418.72 7019.17 7418.78J -4.15 0.17 3450.00 2414.48 9.60 2019.11 12.20 -3.03 -0.45 19,E4 2018.67 2019.13 2018.96) -2,92 0,36 3504.44 2419.78 4.64 2019.19 12,44 -4.76 0.16 19.50 7418.76 2419,21 2019.21 -2.02 0.54 3550,40 2419.74 -0.48 2414.45 12.34 -2.36 0.52 19.70 2019.42 2019,37 2014.41 -2.34 4,44 00.44 2019.69 °0.10 4i9 52~ 12.64 -1.35 4.14 19.40 2014.10 2019.55 2919.51 211 4.20 t 654,02419.72 0.06 \ 7019.58 13.24 -1.46 4.12 18.80 2019.19 2419.62 2019.51 -.7-7,53-J 0.44 3744.00 2019.59 -4.06 2419.53 13.34 -1.14 -0.10 18.74 2019.14 2019.57 2019.41 -2,94 -0.20 3750.00 2419.59 -0.13 2019.42 13.10 -1.24 -0.16 18.34 2415.05 2419.47 2019,21 -3.54 -0.30 3804,04 2919.48 °0.22 2019.21 13.64 °1.49 -4.42 l8.40 2418.83 2619.26 2418.46 -3.78 -4.50 3850.00 2019.22 -0.52 2418.97 13.80 -1.81 -0.4E 18,20 2418.60 2414.42 2018.71 . -3.86 -4.54 3900.04 2018.95 -0.54 2018.85 13.30 -4.75 -4.24 1E.74 2018,46 2018.89 2018.46 -4.51 -0.50 ~ . Try a dep[h of 1.2' 4-4.1 DrywslTs - Freca$[ concreCe dry- ~ we1Ts, as shos,m an C,raunty starrdard I~ V-1.486 R 2/3 S 1I`2 R~ Area • drawinge, may be uaed to retain $torm ~ drainage in,soiZa wlth a very rapid per- n Wetted pertmeter meablZity. Tyges Aand 8Drywrells in ' the €ollowing satls may be desigrzed to 2'x3..2'+(2xl.2x1.2) ~ 5,28 e.f. _ infiltrate a rate af flaw af 0.3 cfs and 2 +2(1.22+2.42) 7.36 fC. 1.0 rfa respsceively. ~ ' • •r- . Bang • . . Harble R R .717 Banner Phoebe , ffsw'r`~RuI ' Springdale 2/3 1/2 Hagan ~ V= 1r~~6 (.717) (.UZ) - 5,61 f,ps The locati4ns af these soiZ types are shown in Che Soil Cvnser+iatian 5ervice Q - vA 5.61 fps x 3.28 sf 29.6 cfs Sail Survey fnr Spokane Caunty. ''hhe a drainage report shall ineterde a capy of ~ 30 cfs .r. d e 1.2' the SCS map with the subdivisiort platted thereon. The Ccaunty Engiraeer ahal.l re- quize the developer to prvvide a sieve SaPrre i7c: Try 1.3' analysfs and seil type test frora a soils labraratary acceptable ta Ehe Caunty En-, Q~ y~ S(h + R Dc)3 DG 31~ gineer if Chere is a qeaestiom rega.eding b+ 2E Dc Che abave sail types. ~ 3/2 In srursl areas, as defxrsed in Spokane ~ Q=,/32.2 (2t2x1.3)3 .K 1.3 ~ 30.9 cfs Cournty Raad 5tandards, Qpen graveY dry- ~ (2+2}C2XI.3) raeTls may he permiEted in liees vf the 30.9 cfs - 30 cfs dC = 1.3" • precasL concrete drywelZs. U~ >D n~ flow is sespercritical. Precast concre[e dryweZts pr~rpe~sed for use in other soils than those shown IF Si.nce the flaw is supercritica1, care. above arsd a.ll apen gravel drywellsshal1 shouZd be taken Co prav#de a he desigr~ed according to perca~.atic~n proper ~s d~terrained by a fieZd ~est ec~n- sign at ,~alnts wher~e horizoaCal and/ar rafotrming te~ the M,anual aE 5eptic tank vertic~I alignment ~hange. pracCice. A County inspectmr shaPP be A free board of .3(]d shoul;d be appPied Present during a1L percalation tests. A ~ percvlation test calcula[ion sheet D- .30 X1.2 - 1.56' signed and sealed hy a registered civil engineer shaZP be submitted. The per- V a 5.5 fps > maximum alZawable. cnlation rate shalZ he equal tn ar gxeaCeX than 72 inches per hour to be Provlde riP rap. {Refer Cn 5ection acceptable fQr drywe].1 construcCi.on. 4.5.) 4-4.2 StoraQe Facilities - Detention 4-4 Aetention/Retention Sys[ems -The starage facfliCies may be used Ga reguZate f~ow ratesE An o~~rf~vw peak ra[e o£ rur~-aff fram ar~ exist~.ng type storage system whict~ regula[es Che site shali no[ be increased due Co the rate n€ Qufiflow shaTl be used. 5ee . , proposed deveT.opment ferr agiven design Figures • 4-3, 4-4, 4-5, and 4-6 frar sCorm. Therefare, areter►tianldeten- suggested detaila. I.andscaped faciZ- IF tian fatility mn-site will be required. ities such as parks, playfields, [ennis Date: 4/4,(84 eaurts, e-tc. ate -reCammended far 4-ZS F-I i1 ~ . ~ . . ,`i TaDle 5--Runoff curve numbers for selected agricultural, suburban, and _ urban land use. (Antecedent moisture condition II, and Ia = 0.2S) NYDROLAGLC SOIL GROUP _ LAND U6E DESCRIPTION A I OI C I D I L Cultlvoted laadil: vlthout coneervatloa treacment 72 81 ae 91 : rith conaorvetion trestment 62 7•1 T8 81 • - • . z Peoture or reaoe.lond: poor conditioa 68 79 86 89 _ • good coaditlnn 39 61 74 80 Neadov: good conditloa • 30 5~8 11 78 , Wood or Forcae land: thin ocnad, poor cover. no mulch 45 66 , 77 83 good covcrV 25 55•- 10 77 Opoa 9pscca, lavpa, paTko, golf cour9ee, cemeterien, etc. . good condltlon: groeo cover oa 75% or more of the nren 39 61 74 60 isir,conditiop: greea cover oa 50% to 751 of the sren 49 69 79 64 CcamerClel and buelaeoe &rom (85% lmpervtouz) 89 92 94 95 Induatrlal dletrlcte (72x impervloua). 91 98 91 93 v ' ReeldeutLP2:=/ ~ Avorage lot eise . Averege S Impervtoua=' 1/8 ecra or leae 65 77 85 90 92 , • 1/4 •cre ' 38 61 75 83 BT ~ 1/3 acre ~ 30 • 57 72 81 'Bo u 1/2 acre 25 54 70 BO 95 1 ecro 20 51 68 79 84 , Paved parking lote, roofa, drlvevqye, ecc.V 98 9B 9d 99 r 3treets and roeda: -0 • pared rlth curDa and utotm sevnrs=l 98 99 98 96 • gravel 76 85 89 91 dire 72 82 87 89 V Yor a more detelled deecription of eRricultural lmd uae curve numDere refer to Netional Enginecring Hmdbook, Section 4, Nydrology, Chapcer 9, Aug. 1972• ~ Cood cover Le procected [rem grazing and littet and Druah cover eotl. • Curve numbera ere computed aseuming the runoft from the houae and drlvevey , lo dlee:ced cw orde the etreec vith s minimum of roof vacnr 1lrecced to lam• vhero edditlonol lnClltrstlon could occur. 'Itie remeining pervtoue arer.s (luvn) nre coneiQered tn be tn 3ood peeture conlltlon , tor theue,curve numbere. • In eome vntmer cllmeter o,f the country a cutvr..number of 95 may be wed. 4-8 . . raaLE 5 ~ . :Q " i Appendix A: Hydrvlogic soil graups ~ Sa'sls are ciassi.Cied iz7tv hyclrolag*ie soil L-roups ln e!,hlbit A-l, same Qf the tt5zed 5wls liave an added (HSG's) ta indicate Clae iiiinimum i a[e of ii3filtration madiFer: far e4ampte, `Ab:•azo, g-i'avelly.' This abt.tined far baure ao€1 aflei- prulonged wettirtg. I'he referS tO a graVeEly phase ui' che Abr:lzo serieS chat HSG's, which are A, B, C, anrl D, are ane elemeert is faunrl in SG5 soil map fegejicis. ~ used t:a detei•mining runuff cur+re raumbers {see chapter 21. For the canwenience o!' 'PR•55 users, ex}llbPC A°L IlSf5 LIIE l-fSG classiCdcataon af [Jttited Disturbed soil profiles States soils. ~ 'I`he infiICration ra[LI.is the rate a[ ►vhich td•ak.er As a resuit of urbaruzatiors, the saii profile may be enters che soil at [he soil svrl'ace. It is cant,rofied by considerably 33tered and,the li5ted group surface canditians. HSG alsa iiidieates tCne elassif'icatiOn may no 1Qngei• appf}'. In t}le5e [r°ansmissinn ir~ate-Athe rate at tr hi~:h C.he ~~•a[er esrctirnstanres, use the Calio►~-ing tn determine HSG ~ maVL; iuithin the boil. This rate is co«tra[lez{ by the accurdirrg to Lhe texture at the new auZfaie s[1iI, suit prntile. Apps•osimate rrumencal rFulges fur proti•itled that signifirant corripaction haS nat ❑cCurred tr.znsmsssian rates ahotw~n in the HSG cl~finitions (Brakensiek :nd R.awla 198:3): ~ were rii-sc publishecl hy Mus6rave (USDdy 1955)• The Faur group5 are de(inee] by SCS soil scieiiti5ts as HSC Soal lextrtres follaws: ~ A Sand, lnamy sand, or sanct►• 1oam Grnup .4 soils have €ot+• t-unafF potential and liigh E3 Sil[ loam ar Icsarn int][ratron rates e+:en when tiharosaghly wetted. They c 5a:idy etuy 1oam cansist thieF]y of eleep, i►•e!3 ta exeessively drained i7 Clay laam. sally clar toam, ;rinciy rla►•, aiity sands or g-r-aveis anrl ha►•e a high ratc af wa[er cfay, or cl:iy traiismissiort (gr-eater than 0.30 inlhr). ~ Grau S sQals ~S~a~•e moderate indiitratir~r~ r-•a[es when I~rain;~ e at1d 3~ ~ g-raup D svils thoroughly %vetted anci consist chiefly moderately deep ta deep, maderately u•ell tcr well c]r.uned 5oila esqCh moderaLely rine to maderaLely Coarse LexCures. Some soils in the ]ist are in group D because of a 'Ihese soils haye a morlerate rate of water high «iater table that rreates a clraPtyage problerrs. tr~ansmission (0.15•0.30 inlhr). Once these soils are effectavely drained, they are ON placeel in .i elsfferent grroup. For exarMple, Ackermaii Group C sails have pow irafiltratiozi raCes when soil is ciasshried as tLID. This indicates that the r.horoughly bvetted uncJ constst chie[ly ❑f sarls wiCh a c[rainecd Aekerm;an soil ys in ~,s`t-oup :4 anri the ]awer thac impcdes clownward moeement of s►+ater tsndrained soil os in g'oup L], ancl soiis ivith m❑deracely fine Lo Cne Cevture. 'Cheae soils have a Iow rate of ►va[er tr~ansinission (0.05-0.I5 irvhr). i Graup Q soils have high runoFf potentiaL They have very la►a• in!'slCration raCes tvhen tharoughly wetted ~ and eonsist chiefly af rFay suils wsth a high swelling poQen[ial, soils with apermanent hxgh water table, soils w-ith aclae-pan ar clay layer at or near the surtace, and shallnw sails aNer nearfi= impereJiovs ~ material. ThPse soi1s have a veru 1ow rate o[' ►s•ater transmissiQtz (0-0.05 inlhr). ~ ~ C210•Vt•TR•55, Secorsd Ecl., June 1986J A•1 I _ A - _ ~ N 40 o~.~su a..v v v~uu o aon ° d wu a qu~saa nnua y~ a u m n a. v~ a n+... a au. avq.~.~. ~d auu : ~ p q a u p sr a u u c r a n a n a ~ y o v a a .j ~ ~ ~a ~ r+ ut v rs ' Q M2 7 i,`a ~xaax~ti°: a ca J•~a.~ x av,~~o:~° •wW~.a~~.sr a~ .~r a~,,.o ~ y y i ta .x 1~ n'~ m ■ i h.[ J 3 i•; p C e•< 6 w i~ V~~~ F 1 4 p O r+ aa E L~ 4 J~ ~ ^ J J y 1 3 J'l ;1 y, ~ w/ - i i~ V~ J d. A i L1 •+~i ~ y~ p e 4 d O ~n N y~ ie ~ G K1 4 G L u La + M1! N i] P O 0 d O p 6 W~ 0. 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