HomeMy WebLinkAboutAPPROVED_Southport_Storm Conveyance Extension_REV2_202203330.pdf7+328+00
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22.1022.08EX 18" PSE BYPASSSTORM SYSTEM21.6021.6621.70DI @ 0.9%21.70CB#C1 CB TYPE I-LRIM=22.00IE=17.95 12"(IN)SWIE=17.95 18"(IN)SE (EX)IE=17.95 18"(OUT)NW (EX)CB#C2 CB TYPE IRIM=21.97IE=18.13 12"(OUT)NE1 CARTRIDGE STORMFILTERSEE DETAILADA RAMP SEE DETAIL6C-212ADA RAMPSEE DETAIL1 C-21236 LF 12" DI @ 0.5%17 LF 12"DI @ 1.0%CB#A5 CB TYPE IRIM=21.50IE=19.50 12"(IN)SEIE=18.45 12"(OUT)N4 CARTRIDGE STORMFILTERSEE DETAIL30 LF 12"DI @ 1.0%CB#A6 CB TYPE ICB#A3 CB TYPE I-LRIM=21.80IE=17.58 18"(IN)SEIE=17.58 18"(OUT)NW/ SOLIDLOCKING LID39 LF 18" DI @ 0.3%CB#A2 CB TYPE I-LRIM=21.63IE=17.46 18"(IN)SIE=17.46 18"(OUT)NEW/ SOLIDLOCKING LID12 LF 18" DI @ 0.3%CB#A1 CB TYPE I-LRIM=21.63IE=17.43 18"(IN)SE (EX)IE=17.43 18"(IN)SWIE=17.43 18"(OUT)NW (EX)W/ SOLIDLOCKING LIDPROTECT EX HYDRANTTO REMAINEND NEW CURBMATCH EX GRADES######4C-21039 LF 18"DI @ 0.3%CB#A4 CB TYPE IRIM=22.53IE=17.70 12"(IN)SIE=17.70 18"(OUT)NWW/ SOLIDLOCKING LID106 LF 12"DI @ 0.7%REMOVE THRU-CURB FRAMEAND GRATE & REPLACE WITHNEW STANDARD FRAME WITHADA HERRINGBONE GRATEREPAIR/REPLACE EXISTING STORMWATER CONNECTION TOTHE STORMWATER FLUME. INSTALL NEW 4'X4' PRECASTCONCRETE FLOORLESS BOX ON TOP OF FLUME LID.CONTRACTOR TO PENETRATE FLUME LID TO PROVIDEHYDRAULIC CONNECTION TO FLUME, TO ALLOW FLOW RATETRANSFER EQUAL TO A 24" DIAMETER OPENING.TOP OF PRECAST BOX TO BE APPOXIMATELY 3-FT BELOWEXISTING GRADE. REMOVE AND REPLACE ASPHALT PAVINGAND CURB, FIELD VERIFY EXISTING CONDITIONS ANDCOORDINATE WITH OWNER AND CIVIL ENGINEER.LegendSTORM FILTER CBSTORM DRAINAGE PIPEYD/CO/CB/CB 2/MH8" SD @ xx%SANITARY SEWERSANITARY MH/COFH/FDC/PIV/VALVEWATER VAULT/METERWATER MAINSAVED TO: SECO_X_LEGEND Do not use BlockEdit, Use LEGEND to editPROPERTY LINEASPHALT PAVEMENTCONCRETE PAVEMENTGRAVELCONCRETE RETAINING WALLCONCRETE CURBFLUSH CONCRETE CURBROCKERY WALLGRAVEL0102040SCALE 1"=20'TENWTransportation Planning | Design | Traffic Impact & Operations11400 SE 8th Street, Suite 200, Bellevue, WA 98004Office (425) 889-6747Transportation Engineering NorthWestProject Contact: Elyse Stemmler, P.E.Phone: 425-250-5004801 SECOND AVENUE, SUITE 900 (206) 343-0460 SEATTLE, WA 98104 www.cplinc.com COUGHLIN LUNDEEN PORTER E N G I N E E R I N G S E I S M I C C I V I L S T R U C T U R A L 33708STATE OF WASHINGTONREGISTEREDPROFESSIONALENGINEER CORB.BYHTOMITYAWK
A PORTION OF THE NW 1/4 OF SECTION 8, TOWNSHIP 23N, RANGE 5E, W.M.CITY OFRENTONTED-40-4860
PARK AVENUE NORTH EXTENSIONRENTON, WASHINGTONSOUTHPORT PARK AVE EXTENSION
C19002723SOUTHPORT PARK AVE EXTENSION -48600PR 14-000082ROADWAY GRADING AND DRAINAGE PLAN8CO
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RConnect to existingTYPE II CBIE=18.90 18"(OUT)NOverflow Pipe toconvey excess waternorth to alternateconnection to theexisting flumeCB TYPE ILRIM=22.25 (match existing grade)IE=18.40 18"(IN/OUT) S/EConnect to existing SDMHIE 18.30 18"(IN) W105 LF 18" SD DI @0.3%63 LF 18" SD DI @0.3%CB TYPE ILRIM=22.25 (match existing grade)IE=18.71 18"(IN/OUT)S/NIE 18.71 12"(IN)EConnect to existing structureon flume to providestormwater overflow route tonew storm pipe connectionIE=18.90 12"(OUT)WConfirm elevation of boxstructure during constructionBased on asbuilt conditions the new 18"storm pipe should pass over the existinghydrant pipe and existing FDC Pipe. Avoid impacts to FH and FDC withstorm pipe installation, protect duringtrenching and installation. ProvideEthafoam pad between top of stormwater pipe and bottom of storm pipe.Existing 18" stormconnection to flumeshown for reference10 LF 18" SD DI @1.0%DEVELOPMENT ENGINEERINGBrianne Bannwarth 03/30/2022condition of approvalrestore landscape buffer and pavementfollowing completion of work.