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OCK <br />PTN. OF SE 1/4 OF SEC.17, TWP 29., R5E W.M. <br />FINISHED GRADE <br />LOCKING MANHOLE <br />CEMENT CONC. MANHOLE <br />COVER AND FRAME <br />RISER OR RINGS, AS READ. (T)P.) <br />P <br />w FULL DEPTH FLEXIBLE JOINT <br />y <br />6- <br />.. <br />3.0 .. \ MATERIAL OR CONT. GASKET <br />BETWEEN RISER <br />YLCOLLAR <br />(RECYCLED VINYL EEQUIV.) <br />- <br />CAST-1 COLLAR AT <br />CONC. <br />�v <br />LASS 3000 CIP CEMENT CONC. <br />ACCESS RISER <br />V AA;ti <br />COLLAR (TIP.) <br />COMPACTED <br />PIPE BEDDING <br />RISER, INTEGRAL TO DETENTION TANK <br />LOCKING MANHOLE COVER <br />ACCESS LADDER, <br />(BY MFR.) <br />AND FRAME PER COE STD. <br />WELD OR BOLT TO <br />I I _ \\ <br />DWG. 610 <br />RISER (BY MFR.) <br />� DETENTION TANK, SEE NOTE 3 <br />I <br />�. ON TIP. DETENTION TANK <br />` <br />11 <br />IEIE=3 <br />FACILITY SECTION THIS SHEET <br />1 <br />i l <br />PRE-MFR. 36" 78" DETENTION <br />ACCESS RISER <br />6" <br />N <br />SECTION <br />PLAN <br />NIS <br />NIS <br />TYPICAL TANK ACCESS RISER DETAIL <br />NOT TO SCALE <br />6" DEPTH CSTC <br />GRADE <br />TANK ACCESS RISER AS COMPACT STRUCTURAL <br />SHOWN ON PLAN, SEE FILL, AS READ. <br />DETAIL THIS SHT. - PIPE ZONE BACKFILL <br />PER WSOOT SPEC. <br />\� SECTION 7-08.3(3) <br />18' DIAM. FLOW <br />STRUCTURE ASSEMBLY <br />flNISN GRADE LOCKING MANHOLE <br />COVER AND FRAME <br />i <br />`O <br />RISER END <br />TOP RISER=39.6-' <br />3.00" DIAM. ORIFI <br />DIAM. ORIFi <br />n© <br />POLY STEPS OR C7 U�1.10" <br />LADDER, BOLT TO <br />CATCH BASIN WALL e <br />`WATERTIGHT <br />48' SO S=0.00X a `, 51i GASKETED JOINT <br />(CONN. PIPE) <br />z_ <br />CS01 � <br />TYPE 2-72' DIAM. <br />CATCH BASIN <br />REMOVABLE PIPE SECTION 3.50" DIAM. ORIFICE <br />w/SOLID END PLATE <br />FLOW CONTROL STRUCTURE — CS01 <br />NOT TO SCALE <br />I <br />Y AM. FLOW <br />STRUCTURE ASSEMBLY <br />.3 <br />FINISH GRADE <br />LOCKING MANHOLE <br />6. <br />COVER AND FRAME <br />DETENTION TANK, <br />GRAVEL BACKFILL FOR PIPE <br />B ZONE BEDDING PER WSOOT <br />_ SPEC. SEC77ON 9-03.12(3) <br />- <br />- <br />OPEN RISER END <br />SIZE AND LENGTH <br />PER PLAN TIP. <br />(. ) <br />SUITABLE COMPACT <br />NATIVE OR IMPORT FILL <br />`D <br />-- <br />TOP RISER=40.60 <br />DIAM. CONN,MATERIAL <br />- <br />PIPE, PER P <br />1.25- DIAM. ORIF7( <br />NOTES., <br />1. TANK SYSTEM SHALL BE DESIGNED TO SUPOORT A MINIMUM H30 TRAFFIC LOAD. TANK MANUFACTURER SHALL PROVIDE CALCULA77ONS AND SHOP <br />DRAWINGS STAMPED BY A PROFESSIONAL ENGINEER LICENSED IN THE STATE OF WASHINGTON VERIFYING TANK CAPACITY AND COMPLIANCE WITH ALL <br />PROJECT REQUIREMENTS. <br />2. ALL TANKS SHALL MEET THE STRUCTURAL REQUIREMENTS FOR OVERBURDEN SUPPORT UNDER A MINIMUM HS-20 TRAFFIC LOADING. <br />J. DETENTION TANKS SHALL COMPLY W/ REQUIREMENTS SET FORTH IN SEC71ON 4-4.4(2) OF COE 2018 DESIGN AND CONS7RUCT10N STANDARDS AND <br />SPECIFICA77ONS FOR DEVELOPMENT. MATERIAL OF DETENTION TANK, RISER, AND CONN. PIPES SHALL BE 12 GAGE MIN. CORRUGATED ALUMINUM. <br />4. RIM ELEVA77ONS SHALL BE ADJUSTED AS REQUIRED TO ACCOMMODATE ACTUAL ACCESS LOCATONS AND FINISHED GRADE CONDITIONS. <br />5. ALL UNSUITABLE SOILS SHALL BE REMOVED FROM FOOTPRINT OF TANK AND TO A DISTANCE BEYOND THE TANK EQUAL TO THE DEPTH OF OVER EXCAVATED <br />MATERIAL IN ACCORDANCE W71H THE PROJECT PLANS AND SPECIFICATIONS AND AS DIRECTED BY THE ENGINEER. ALL UNSUITABLE MATERIAL SHALL BE <br />REPLACED WITH SUITABLE COMPACT STRUCTURAL FILL MATERIAL. <br />6. ANY DISCREPANCIES BETWEEN THE APPROVED CIVIL AND STRUCTURAL PLANS REGARDING ACCESS RISER HEIGHTS AND/OR LADDER LOCATIONS SHALL BE <br />GOVERNED BY THE APPROVED CIVIL PLANS. <br />7. DETENTION TANK SHALL BE INSTALLED IN ACCORDANCE W17H CITY OF EVERETT STANDARD DRAWING NO. 418. <br />n TYPICAL DETENTION TANK FACILITY SECTION <br />NOT TO SCALE <br />POLY STEPS OR Tall <br />LADDER, BOLT TO <br />CATCH BASIN WALL , <br />6.706 <br />IE=3TGHT <br />54' DETENTION TAN I=O.00 0 _Nip �G SKETED JOINT <br />48' SD 5=0.00% jll�� <br />(CONN. PIPE) <br />i_ <br />CS02 <br />TYPE 2-72' DIAM. <br />CATCH BASIN A <br />REMOVABLE PIPE SECTION -1.8125" DIAM. ORIFICE <br />w/SOLID END PLATE <br />FLOW CONTROL STRUCTURE — CS02 <br />NOT TO SCALE <br />z <br />z <br />'x <br />3 <br />U) <br />I— <br />i <br />zx <br />w <br />z <br />m <br />Q <br />� <br />a <br />W <br />Z <br />LU <br />Q-- <br />o <br />~ <br />> <br />w <br />W <br />> <br />m <br />w <br />a <br />0 <br />CLIENT <br />RIVERVIEW I, LLC <br />10900 NE STH STREET <br />SUITE 1200 <br />BELLEVUE, VIA 98004 <br />PHONE (425) 453-9551 <br />CPI <br />CONSULTANTS <br />JSite Planning • CH Engmee(ng <br />Land Use Jt431WEing•PW- tManagemem <br />(� 1143RM-AWASMki�o <br />Retlmota, WAn-(42 <br />Plana (425)28523901 PAY (445)28SZ489 <br />www.cOacOnsultants.com <br />PROJECT NO. <br />0024-17-037 <br />DRAWWG <br />C3.20 <br />Know. whaPs below. <br />Call before you dig. sHEET 25 OF 47 <br />Coq,ig�t O A391APP�mUtnq LLG N Piyl4 Paeswa <br />