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HomeMy WebLinkAboutD-204603A B C D E F .EXCAVATE APPROX 60' OF 18" SD. RELAY 5 �tif OPT PIPE TO MH -2 BY DEFLECTING JOINTS. (ALTERNATE METHOD: USE 22 1/2' % FITTING AS SHOWN.) \ APPROXIMATE LOCATION OF EXISTING 12" FORCE MAINS \ \ \ \ TIMBER BULKHEAD / �/� EXCAVATE APPRQX 28' . - - -� OF 10" SD. RELAY- PIPE TO MH -2 USING o2 \ J INV-1s9 (3), 11 1/4' BENDS \ \� -'� 4 INV 116.9 INV 3 \ / / / / 115.45 // O7 SEE DETAIL A /G3— 96 EFFLUE INV 101.00 M 2 /../ / / / 7'; \4�� 18" SD INV .1130 - INV 115.43 �\ ' G H GENERAL NOTES: 1. AS BUILT CONDITIONS AT THE STRUCTURE ARE UNKOWN. MODIFICATIONS SHOWN ARE SCHEMATIC IN NATURE. THE CONTRACTOR SHALL MAKE MODIFICATIONS AS NECESSARY TO. ACHIEVE THE FOLLOWING: a. RE -ROUTE 10" AND 18" STORMWATER PIPES TO MH -2. b. MAKE 30" DI CONNECTION BETWEEN MANHOLES, INVERT AT 113.00 FLAP GATE AT MH -1. c. PLUG HOLE IN BOTTOM OF MH -2. d. MAKE 18" CONNECTION WITH SD TO STORMWATER PS. KEY NOTES: Oi SEAL 3' DIAMETER OPENI ":G FOR 25 FEET OF WATER PRESSURE FROM EITHER . DIRECTION. SEE DETAIL A. O BREAK OUT EXISTING MANHOLE(S) TO INSTALL PIPE. GROUT PIPE IN PLACE. O3 30" FLAP VALVE WITH ANTI LOCKING BAR, RESILIENT NEOPRENE SEATS, TYPE 304 SS HINGE PINS. RODNEY HUN'P SERIES FV -AC OR EQUAL. 30" DUCTILE IRON PIPE FLANGED x PLAIN END, INVERT 113.00. O PLUG OPENINGS OF EXISTING 10" AND 18" STORMWATER PIPES. © INSTALL STOP ON MANHOLE I WALL TO PREVENT :GATE FROM JAMINGIN THE FULL OPEN POSITION. O7 PROVIDE (12) EQUALLY SPACED "Y' CLAMPS AND EXPANSION ANCHORS. / MH -1 6 j (MH TZN)G 6' DIA MANHOLE 2 EL 701.0 3' -8 / GROUT COVER 4° TOP OF EFFLUENT ROUND 1/2" THICK \\ JUNCTION STRUCTURE CIRCUMFERENCE SS PLATE _ 1/2" THICK z 120" OUTFA NEOPRENE GASKET o z 0 o / LL U //. EFFLUENT JUNCTION STRUCTURE MANHOLE OPENING SEAL ( U01: �< - RECONrAENOCO A CoNS4a�detl =Bo as ButtAmi able. �N PART PLAN rofiAPVaovAL DETAIL, G3 SCALE: NO SCALE eY 72 �{2Mn* Z?4d az SCALE NO SCALE DATUM NOTE DESIGNED DATE: �II 'METRO Yonioipelity of 'Met -when Seattle and gums �y JP fP MAR 1992 ��. Brown end Caldwell USC GSIAOJUSIED 1947) DRAYM: CHECKED: SCALE: FILE N0: COORDINATES ARE BASED ON SEACAD GRH METRO'S REGIONENL ENLARGEMENT TREATMENT IN RENTON w+T GRO STORMWATER PUMPING STATION " Consultants a RECOMMENDED: NO SCALE DRAWING NO: seattle, woehingtoD e PROPOSED ISTORMWATER MODS AT G3 Z ONAL14j6 CONTRACT N0: APFR °`D W/M 37-91 28 8 EFF JUNCTION STRUCTURE MH SHEET NO: OF N0: C REVISION BY DATE WP � EIPIRES 5/27 SWP -6V -2046 A B v C D E F G H 5