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HomeMy WebLinkAboutP_DrainagePlan_Meadow_View_Lot04_190208_v2YD1 4 LAND USE SUMMARY CP H ONSULTANT S 11431 Willows Rd. NE, Suite 120 Redmond, WA 98052 Phone: (425) 285-2390 | FAX: (425) 285-2389 www.cphconsultants.com Site Planning • Civil Engineering Land Use Consulting • Project Management Copyright © 2018 CPH Consultants, LLC. All Rights Reserved.IN FEETPLAN 0 N CONSTRUCTION NOTES MEADOWVUE - LOT 4 STORM DRAINAGE PLAN 20 LEGAL DESCRIPTION LEGEND PR17000137 B19002102 V2 REVISION Received: 05/31/2019 / aalexander BUILDING DIVISION APPROVEDBUILDING DIVISION THIS SET OF APPROVED PLANS MUST BE ON THE JOB AT ALLTIMES DURING CONSTRUCTION. THIS BUILDING IS NOT TO BEOCCUPIED UNTIL AFTER FINAL INSPECTION BY THE RENTONBUILDING DIVISION AND RECEIPT OF CERTIFICATE OFOCCUPANCY. APPROVAL SHALL NOT BE CONSTRUED AS THE AUTHORITY TOVIOLATE OR CANCEL ANY PROVISIONS OF CODES, ORDINANCES,OR OTHER REGULATIONS ENFORCED BY THIS CITY. DATE: 06/10/2019 MEADOWVUE - LOT 4 DETAILS AND NOTES CP H ONSULTANTS 11431 Willows Rd. NE, Suite 120Redmond, WA 98052 Phone: (425) 285-2390 | FAX: (425) 285-2389 www.cphconsultants.com Site Planning • Civil Engineering Land Use Consulting • Project Management Copyright © 2018 CPH Consultants, LLC. All Rights Reserved. LOT 4 STORM DRAINAGE SUMMARY · · · · · · · · SPLASHBLOCK FOR BASIC DISPERSION PLAN VIEW OF PARCEL TO STORM DRAINSYSTEMRIGHT- OF-WAYGENERAL NOTES:1.INFILTRATION TRENCHES LIMITED TO ROOF RUNOFF FROM SINGLE-FAMILY OR DUPLEX HOMES OR TO CONTROL BASEMENT FLOODING. CONSULT WA DEPARTMENT OF ECOLOGY REGULATIONS FOR UNDERGROUND INJECTION CONTROL PROGRAM (UIC) FOR OTHER TYPES OF RUNOFF MANAGEMENT.2.IMPERVIOUS AREAS LARGER THAN 10,000 SF AND NON-NATIVE PERVIOUS AREAS LARGER THAN 35,000 SF MAY REQUIRE LARGER PIPE AND SHOULD BE DESIGNED BY A CIVIL ENGINEER.3.THE PERFORATED PIPE MAY NOT BE PLACED IN A CRITICAL AREA BUFFER OR ON SLOPES STEEPER THAN 25%.4.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.24" MIN.18" MIN.MIN. 1' ABOVE SEASONAL HIGH GROUNDWATER TABLE 6" MIN.1 1/2" - 3/4" WASHED DRAIN ROCK NON-WOVEN GEOTEXTILE FOR SEPARATION ON TOP AND SIDES OF TRENCH PER WSDOT SPECIFICATIONS SECTION 9-33.2(1) TABLE 3 COMPACTED TOPSOIL OR OTHER CLEAN FILL 6" MIN. PVC PERFORATED PIPE PER ASTM D1785 10' MIN. LEVEL TRENCH WITH PERFORATED PIPE, SEE NOTE 1 DOWNSPOUT WITH CLEANOUT FILTER, SEE DETAIL ASECTION A NOTES:1.TRENCH LENGTH TO BE 10 FEET IN LENGTH FOR EVERY 5,000 SF OF CONTRIBUTING IMPERVIOUS SURFACE, OR 35,000 SF OF NON-NATIVE PERVIOUS SURFACE, OR PORTION THEREOF. 5' MIN. 5' MIN.TO STORM DRAIN SYSTEM 5' MIN. 5' MIN. A DOWNSPOUT WITH CLEANOUT FILTER, SEE DETAIL 10' MIN. LEVEL TRENCH WITH PERFORATED PIPE, SEE NOTE 1 CONFIGURATION ON FLAT GROUND CONFIGURATION ON SLOPING GROUND UNDISTURBED NATIVE SOIL CLEANOUT PER STD. PLAN 226. 00 CLEANOUT PER STD. PLAN 226. 00 FILTER SCREEN 2'-5' TO GROUND SOLIDS/ LEAVES TYPICAL DOWNSPOUT FILTER DETAIL FOOTING DRAIN BYPASS CLEANOUT PER STD. PLAN 226. 00 PERFORATED STUB- OUT CONNECTION PUBLIC WORKS DEPARTMENT APPROVED:DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE ( NTS)STD. PLAN - 263. 40 DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436- A317AA638878 9/28/2018 | 9:45 AM