Painted Hills FEIS Appendix K - MAY 2023APPENDIX K:
Flood Conveyance System Diagram
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DISHMAN-MICA RD.SPOKANE VALLEY,WADRAWN:PROJ #:REVIEWED:DATE:DATUM: NAVD - 8813-1166JOB NUMBERSHEETTRW13-116609/14/20WCETBM S-5 OF THE SOUTH PONDEROSA SEWER PROJECTWITH AN ELEVATION OF 2005.87 (NAVD29)=2009.67(NAVD88) WAS USED FOR THE VERTICAL DATUM FOR THISMAP.WHIPPLE CONSULTING ENGINEERS2528 NORTH SULLIVAN ROADSPOKANE VALLEY, WA 99216PH: 509-893-2617 FAX: 509-926-0227CIVILSTRUCTURALSURVEYINGTRAFFICPLANNINGLANDSCAPEOTHERPAINTED HILLS 14, SEC. , T. N., R. E., W.M.SE332544 SW14, SEC.34, T.25N., R.44E., W.M. 14, SEC. , T. N., R. E., W.M.NE42444VERTICAL:HORIZONTAL:SCALE:REVISIONSNO. DATE BY EXISTING FLOOD AREASEXH-1SMM1"=120'N/AXWESNCP:\WCE_WORK\2013 WCE PROJECTS\2013-1166 Walker - Painted Hills GC\DWG\2022-12-12FLOOD-SKETCHES\EXH-1-FLOOD PLAN.dwg, EXH-1, 12/19/2022 2:39:45 PM,smoss, SMM
DISHMAN-MICA RD.SPOKANE VALLEY,WADRAWN:PROJ #:REVIEWED:DATE:DATUM: NAVD - 8813-1166JOB NUMBERSHEETTRW13-116609/14/20WCETBM S-5 OF THE SOUTH PONDEROSA SEWER PROJECTWITH AN ELEVATION OF 2005.87 (NAVD29)=2009.67(NAVD88) WAS USED FOR THE VERTICAL DATUM FOR THISMAP.WHIPPLE CONSULTING ENGINEERS2528 NORTH SULLIVAN ROADSPOKANE VALLEY, WA 99216PH: 509-893-2617 FAX: 509-926-0227CIVILSTRUCTURALSURVEYINGTRAFFICPLANNINGLANDSCAPEOTHERPAINTED HILLS 14, SEC. , T. N., R. E., W.M.SE332544 SW14, SEC.34, T.25N., R.44E., W.M. 14, SEC. , T. N., R. E., W.M.NE42444VERTICAL:HORIZONTAL:SCALE:REVISIONSNO. DATE BY EXISTING VS PROPOSED FLOOD AREASEXH-2SMM1"=120'N/AXWESNCP:\WCE_WORK\2013 WCE PROJECTS\2013-1166 Walker - Painted Hills GC\DWG\2022-12-12FLOOD-SKETCHES\EXH-1-FLOOD PLAN.dwg, EXH-2, 12/19/2022 2:40:28 PM,smoss, SMM
DISHMAN-MICA RD.SPOKANE VALLEY,WADRAWN:PROJ #:REVIEWED:DATE:DATUM: NAVD - 8813-1166JOB NUMBERSHEETTRW13-116609/14/20WCETBM S-5 OF THE SOUTH PONDEROSA SEWER PROJECTWITH AN ELEVATION OF 2005.87 (NAVD29)=2009.67(NAVD88) WAS USED FOR THE VERTICAL DATUM FOR THISMAP.WHIPPLE CONSULTING ENGINEERS2528 NORTH SULLIVAN ROADSPOKANE VALLEY, WA 99216PH: 509-893-2617 FAX: 509-926-0227CIVILSTRUCTURALSURVEYINGTRAFFICPLANNINGLANDSCAPEOTHERPAINTED HILLS 14, SEC. , T. N., R. E., W.M.SE332544 SW14, SEC.34, T.25N., R.44E., W.M. 14, SEC. , T. N., R. E., W.M.NE42444VERTICAL:HORIZONTAL:SCALE:REVISIONSNO. DATE BY CONCEPTUAL DRAINAGE EXH-3SMM1"=120'N/AXWESNC5' WIDE MANHOLEHEADWORKS SELFCLEANING TRASH RACKOVERFLOW CHANNEL- USED IFTRASH RACK IS BLOCKED, ANDFLOWS INTO THE SECONDARYSTORAGE PARK POND3' TALL, 27' WIDE &32' LONG CULVERTFLOODWATERSENTERCULVERTLOWPOINT PONDSETTLINGPOND1263478123455467889BERM WITH TWO48" PIPES1234444555556789FOREBAY5' WIDE MANHOLE10FLOOD ROUTING - DESCRIPTIONBOX CULVERTFOREBAY / HEADWALL / TRASH RACKSPARK OVERFLOWPIPES TO DISCHARGE BASINMANHOLESBIOFILTRATION SWALESEDIMENT BASINDISCHARGE PIPES TO DISCHARGEBASINDISCHARGE BASINEXISTING CULVERTS FROM EAST OFMADISON123456789109105TALL GRASSYSLOPETHORPE ROADP:\WCE_WORK\2013 WCE PROJECTS\2013-1166 Walker - Painted Hills GC\DWG\2022-12-12FLOOD-SKETCHES\EXH-1-FLOOD PLAN.dwg, EXH-3, 12/19/2022 3:30:42 PM,smoss, SMM
DISHMAN-MICA RD.SPOKANE VALLEY,WADRAWN:PROJ #:REVIEWED:DATE:DATUM: NAVD - 8813-1166JOB NUMBERSHEETTRW13-116609/14/20WCETBM S-5 OF THE SOUTH PONDEROSA SEWER PROJECTWITH AN ELEVATION OF 2005.87 (NAVD29)=2009.67(NAVD88) WAS USED FOR THE VERTICAL DATUM FOR THISMAP.WHIPPLE CONSULTING ENGINEERS2528 NORTH SULLIVAN ROADSPOKANE VALLEY, WA 99216PH: 509-893-2617 FAX: 509-926-0227CIVILSTRUCTURALSURVEYINGTRAFFICPLANNINGLANDSCAPEOTHERPAINTED HILLS 14, SEC. , T. N., R. E., W.M.SE332544 SW14, SEC.34, T.25N., R.44E., W.M. 14, SEC. , T. N., R. E., W.M.NE42444VERTICAL:HORIZONTAL:SCALE:REVISIONSNO. DATE BY CONCEPTUAL PARK OVERFLOWEXH-4SMM1"=20'N/AXWESNCTRASHRACKOVERFLOWCHANNELFLOWS TOPARK POND3' TALL, 27' WIDE &32' LONG CULVERTFLOOD WATERSENTER CULVERTOUTFLOWBACK TOPIPINGSECONDARYSTORAGE PARKPONDFLOOD WATERS RISE AND FLOW INTOAND THROUGH BOX CULVERT.WATERS ENTER FOREBAY TO TRASHRACK WHICH COLLECTS DEBRIS-TRASHRACK WILL BE CLEANED OF DEBRIS ATSCHEDULED TIMES. FLOW ENTER TWOPIPE SYSTEMOVERFLOW CHANNEL-USED ONLY IF THETRASH RACK IS BLOCKED BY DEBRIS.WATERS FLOW INTO THE PARK ANDTEMPORARILY STORED AND BYPASSESHEADWORKS AND DISCHARGES BACK TOTHE 48" PIPES..MANHOLE WITH GRATED LID.8 FOOT MANHOLE IS CONNECTED TO 48"CULVERTS AND CONTINUES DOWN THEDESIGNED CULVER SYSTEM.1234511234523458' MANHOLETHORPE ROAD
DEFINITIONSP:\WCE_WORK\2013 WCE PROJECTS\2013-1166 Walker - Painted Hills GC\DWG\2022-12-12FLOOD-SKETCHES\EXH-1-FLOOD PLAN.dwg, EXH-4, 12/19/2022 3:31:10 PM,smoss, SMM
DISHMAN-MICA RD.SPOKANE VALLEY,WADRAWN:PROJ #:REVIEWED:DATE:DATUM: NAVD - 8813-1166JOB NUMBERSHEETTRW13-116602/8/23WCETBM S-5 OF THE SOUTH PONDEROSA SEWER PROJECTWITH AN ELEVATION OF 2005.87 (NAVD29)=2009.67(NAVD88) WAS USED FOR THE VERTICAL DATUM FOR THISMAP.WHIPPLE CONSULTING ENGINEERS2528 NORTH SULLIVAN ROADSPOKANE VALLEY, WA 99216PH: 509-893-2617 FAX: 509-926-0227CIVILSTRUCTURALSURVEYINGTRAFFICPLANNINGLANDSCAPEOTHERPAINTED HILLS 14, SEC. , T. N., R. E., W.M.SE332544 SW14, SEC.34, T.25N., R.44E., W.M. 14, SEC. , T. N., R. E., W.M.NE42444VERTICAL:HORIZONTAL:SCALE:REVISIONSNO. DATE BY CONCEPTUAL GUSTIN PONDEXH-5SMMNOT TO SCALEN/AXWESNC1456HIGHWAY 27ACCESS ROADHIGHWAY 271 40TH AVENUENEW DRYWELLNEW DRYWELLPROPOSED 36"CULVERT12'APPROX.DEPTHACCESS ROADPOND ACCESS12 DRYWELLSIN PONDBOTTOMCULVERT EMPTIESINTO POND7SYMBOLDESCRIPTIONQTYDETAILNEW DRYWELLHIGHWAY 27DRYWELL WEST OF HIGHWAY 27PROPOSED 36" CULVERT36" PIPE EMPTIES INTO PONDPOND BOTTOM WITH 12 DRYWELLSPOND ACCESS ROAD FROM POND BOTTOM TO 40TH AVE.1234567REFERENCE NOTES SCHEDULEP:\WCE_WORK\2013 WCE PROJECTS\2013-1166 Walker - Painted Hills GC\DWG\2022-12-12FLOOD-SKETCHES\EXH-1-FLOOD PLAN.dwg, EXH-5, 2/10/2023 8:18:19 AM,smoss, SMM