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HomeMy WebLinkAboutSWP2703595.3ro Lo 0 0 N KEY 0 1. RIGID OR FLEXIBLE PAVEMENT 3 2. GRANULAR ROAD BASE 3. 12" MIN. FOR DIAMETERS THROUGH 96" 18" MIN. FOR DIAMETERS FROM 102" AND LARGER MEASURED TO TOP OF RIGID OR BOTTOM OF FLEXIBLE PAVEMENT. 4. SELECT GRANULAR FILL PER AASHTO M145 Al, A2 OR A3, OR APPROVED EQUAL. PLACED IN 8" LIFTS (COMPACTED TO MIN. 90% STANDARD DENSITY PER AASHTO T99.) 5. GRANULAR BEDDING, ROUGHLY SHAPED TO FIT THE BOTTOM OF PIPE, 4" TO 6" IN DEPTH FOUNDATION/BEDDING PREPARATION PRIOR TO PLACING THE BEDDING, THE FOUNDATION MUST BE CONSTRUCTED TO A UNIFORM AND STABLE GRADE. IN THE EVENT THAT UNSUITABLE FOUNDATION MATERIALS ARE ENCOUNTERED DURING EXCAVATION, THEY SHALL BE REMOVED AND BROUGHT BACK TO THE GRADE WITH A FILL MATERIAL AS APPROVED BY THE ENGINEER. ONCE THE FOUNDATION PREPARATION IS COMPLETE, 41 1 - 6" OF A WELL -GRADED GRANULAR MATERIAL SHALL BE PLACED AS THE BEDDING. THE BACKFILL SHALL BE AN Al, A2 OR A3 GRANULAR FILL PER AASHTO M145, OR A WELL -GRADED GRANULAR FILL AS APPROVED BY THE SITE ENGINEER (SEE INSTALLATION GUIDELINES). THE MATERIAL SHALL BE PLACED IN 81 1 LOOSE LIFTS AND COMPACTED TO 90% AASHTO T99 STANDARD PROCTOR DENSITY. WHEN PLACING THE FIRST LIFTS OF BACKFILL IT IS IMPORTANT TO MAKE SURE THAT THE BACKFILL IS PROPERLY COMPACTED UNDER AND AROUND THE PIPE HAUNCHES. BACKFILL SHALL BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO LIFT (16") DIFFERENTIAL BETWEEN ANY OF THE PIPES AT ANY TIME DURING THE BACKFILL PROCESS. THE BACKFILL SHALL BE ADVANCED ALONG THE LENGTH OF THE DETENTION SYSTEM AT THE SAME RATE TO AVOID DIFFERENTIAL LOADING ON THE PIPE. OTHER ALTERNATE BACKFILL MATERIAL MAY BE ALLOWED DEPENDING ON SITE SPECIFIC CONDITIONS, AS APPROVED BY SITE ENGINEER. BACKFILL DETAIL SCALE: N.T.S. 95 119 of SECTION 25-1 /2" 0 A ff 1/2 to 0 BOLT CONNECTION DETAIL GENERAL NOTES: 10C CORRUGATED BAND WITH 3/8" BASKET 5" x 1" PIPE (2) 24" TECHCO BAND ANGLES 1® REFER TO CONTECH BAND SELECTION GUIDE FOR BAND WIDTH, GAGE, AND FASTENER TYPES. 2. BANDS FOR PIPE —ARCH ARE THE SAME AS FOR EQUIVALENT DIAMETER ROUND PIPE. 3. BANDS ARE NORMALLY FURNISHED AS FOLLOWS: 12" THRU 48" 1—PIECE 54" THRU 96" 2—PIECE 102" THRU 144" 3—PIECES. 4. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS. ALL ALUMINUM BANDS, BOTH SINGLE AND DOUBLE BB&S, ARE FURNISHED WITH A 14 GAGE ALUMINUM BACK—UP PLATE WELDED TO THE BAND AND THE STRAP. 5. REROLLED ANNULAR END CORRUGATIONS ARE NORMALLY 2-2/3" X 1 /2". DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 10-C BAND WITH GASKET SCALE: N.T.S. D=359503 The design and information shown on this drawing is provided as a service to the project owner, engineer and contractor ed CONTECH Construction Products Inc. or one of its affiliated � � '�eAv® �`II� ® � / ��� 0120" U N E RG RO U N D DETENTION SYSTEM - 131250-002 PROJECT No.: SEQ. No.: DATE: 131250 002 9/1/10 companies ("CONTECH"). Neither this drawing, nor any part thereof, may be used, reproduced or modified in any manner • _ �'44 ® ®® _ DESIGNED: DRAWN: without the prior written consent of CONTECH. Failure to �'•,,,� - ---- CMP DETENTION SYSTEMS AZURE RIDGE APARTMENTS KT DLF comply is done at the user's own risk and CONTECH expressly ---- ---- ---- -- CONSTRUCTION PRODUCTS INC. CHECKED: APPROVED: disclaims any liability or responsibility for such use. ____ I I WWW.contech-cpi.com CONTECH R E N TO N WA ____ ____ ____ If discrepancies between the supplied information upon which the drawing is based and actual field conditions are encountered as site work progresses, these discrepancies' must be reported 11835 NE Glenn W i d i n g Drive, Portland, OR 97220 DLF CONTRACT N T R/�1C T , SITE DESIGNATION: N/A ---- ---- 1 7/19/11 SYSTEM REDESIGNED SHEET NO.: to CONTECH immediately for re-evaluation of the design. CONTECH accepts no liability for designs based on missing, 800-548-4667 503-240-3393 800-561-1271 FAX BY DRAWING °} MARK DATE REVISION DESCRIPTION incomplete or inaccurate information supplied by others. N d Uq CD 1 N y � 1 y CJ1