Loading...
HomeMy WebLinkAboutWWP2703473.377D 0 I i 00 i i 0 ry 0 i J) 0 z 0 U D 0 0 a i cn c� 0 Ln 00 0 0 m i Ln N 00 z c� w 0 i 0 0 0 0 0 0 0 w Q z w z U) w T C a w w REMOVE & SALVAGE ELECTRICAL SERVICE PANELS TO CITY MAINTENANCE YARD AT 3555 NE 2ND ST. RENTON, WA 98056 COMPLETE WITH ALL INTERNAL WIRING STATION & COMPONENTS CONTROL BOX LINE OF 8 6" CEDARS 3' x15'H ARBORVITAE x x x x x.---- x GONG BLOCK FENCE BASE 20"MP EX. SSMH Ix RIM=402.01 E CTR=396.84 SHALLOW, RECESSED I w z w 0 I I I I 3'Wx15'H ARBORVITAE EX. 8" GRAVITY SEWER EX. LIFT STATION EX. 4" FORCE MAIN WET WELL SV Gi _ ____._____ - P 8"MP SEE LIFT STATION REMOVAL 6"MP & WET WELL RECHANNELIZATION DETAILS N TWITWI ON THIS SHT. N POWER METER CHANNEL PROPOSED MANHOLE W/ PHONE CONNECTION (MANHOLE INSTALLED BY 8"FR OTHERS)_ x x -- x x 5' CLF REMOVE & DISPOSE k OF EQUIPMENT. pm x S� WM 1 2 � x ". P Ex. PRop 3 wk'0H AR&O X 6' CcF •� �� ��'� i STORAGE ED 8" RV/TA X �' 8 Mf / P STRUCTURE ` / Ty SEA BANDON EX. FORCE , ..'Ex' •sSMH MAIN PER DETAIL Po RIM=4o1.7±� a"AR / Q THIS SHEET. _ _ - - IE 10"NE 390.20± 41 IE 8"NW 390.30± PROPOSED i REMOVE VANE' BOX —SDMH SEI"S)0R RIM=401.93 / AND ABANDON VALVE. � IE=394.23(SW)20"CMP a : CONTRACTOR TO VERIFY 10" IE, . • 6"FR TOP SEP-T=399.33(NE) CONTRACTOR SHALL GATE VALVE, / DRAIN FORCE MAIN SET IE" OF P"RQPOSED 8 0.10 / .HIGHER TO ALLOW * FAhL X wrR LVL=394.23 PRIOR TO PLUGGING. ACROSS MANHOLE, AND ' .... • • • ... ADJUST SLOPE OF 8": I PROPOSED GRAVITY as = ACCORDINGLY. I I .. I i .............. a ' I TRACT X I I ' . I a � a I I I CONSTRUCTION SEQUENCE: 10 CONSTRUCT GRAVITY SEWER PIPE BETWEEN LIFT STATION AND DOWNSTREAM MANHOLE. CHANNEL DOWNSTREAM MANHOLE. �2 INSTALL BYPASS PIPING BETWEEN MANHOLES UPSTREAM AND DOWNSTREAM OF THE LIFT STATION. �3 INSTALL TEMPORARY BYPASS (INCLUDING BYPASS PUMPS, PLUGS, ETC.) AND PERFORM BYPASS OPERATIONS. ® CLOSE VALVE ON FORCE MAIN. 05 ABANDON LIFT STATION AND OVERFLOW STORAGE STRUCTURE. © OPEN VALVE ON FORCE MAIN TO DRAIN FORCE MAIN DOWNSTREAM. REMOVE TEMPORARY BYPASS SYSTEM, AND ABANDON FORCE MAIN. DEMOLITION NOTES: 1. ALL MATERIALS SHALL BE DISPOSED OF AT AN APPROVED WASTE DISPOSAL SITE AS SELECTED BY THE CONTRACTOR. 2. CONTRACTOR SHALL COORDINATE WITH OWNER AND PSE FOR ELECTRICAL SERVICE DISCONNECTION TO EXISTING STATION. 3. REMOVE EXISTING STATION AFTER APPROVAL IN WRITING BY OWNER. SEE SPECIFICATIONS FOR CONSTRUCTION RECORD DRAWING OF EXISTING LIFT STATION FACILITY. 4. RESTORE ALL DISTURBED AREAS WITH TOPSOIL AND HYDROSEED. -1d11111 1-- 10 0 10 20 SCALE IN FEET ROTI-'rl I LL .• x SDI IE=394.29(NE) ....... 20"CMP . x • x BYPASS PLAN GENERAL NOTES: 1. MAXIMUM ANTICIPATED FLOWS FOR SUMMERWIND L.S. ARE 250 GPM, STONEGATE LS MUST BE OPERATIONAL, WITH EX. STONEGATE L.S. ABANDONED, PRIOR TO ABANDONING SUMMERWIND. 2. ALL OF THE CONNECTIONS TO THE EXISTING SYSTEM INVOLVE POTENTIAL EXPOSURE TO RAW SEWAGE. CONTRACTOR IS RESPONSIBLE FOR ALL SAFETY PRECAUTIONS ASSOCIATED WITH WORKING AROUND RAW SEWAGE AND SEWAGE GAS. 3. THIS BYPASS PLAN IS ONLY INTENDED TO PRESENT POSSIBLE METHODS FOR PERFORMING THE CONNECTIONS. CONTRACT SHALL EVALUATE AND CONFIRM FEASIBILITY FOR PROPOSED WORK AND SUBMIT PLAN TO ENGINEER FOR EACH OF THE CONDITIONS AT LEAST 1 WEEK PRIOR TO COMMENCING ANY CONNECTION. z L_OT 11 ROMAC 501 COUP EX. 8" GRAVITY SEWER `= ---- 5-3473 �V L. BR�� 1 wAs `q d� T 37847 CONTRACTOR SHALL DISCONNECT PIPING REMOVE 2' TOP SECTION OF MH & INSTALL FLAT FROM PACKAGED LIFT STATION & DELIVER TOP SLAB w/ GRADE ADJUSMENT RINGS & 24"0 AND UNLOAD DISCONNECTED PACKAGED MH FRAME & COVER AS NECESSARY (ONE RING STATION TO CITY MAINTENANCE YARD MIN.) POSITION SO THAT MH COVER IS LOCATED (INCLUDING EXIST. LID) AT 3555 NE 2ND ABOVE THE EXIST. ACCESS LADDER. ENSURE ST. RENTON, WA 98056 PER ii i i u MANHOLE IS WATERTIGHT. SPECIFICATIONS. n PROPOSED BACKFILL W/ MIN. 2' n u OF TOPSOIL AND 8" GRAVITY i HYDROSEED SURFACE 401,35 --s =_�=- --- SEWER — — REMOVE & DISPOSE OF /////\%/jam/%/%/%//� ALL DUCTS & PIPING \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ REMOVE &DISPOSE OF INSIDE MANHOLE i \ \ \ \ \ \. \ \- \ .\ TOP 4' OF OVERFLOW CUT FLUSH WITH EDGE OF MH 2 'SAND ; . • f STORAGE STRUCTURE -��•-. �--.-. • :.._ �':.�•-.' � PLUG EX. FORCE MAIN BY E . I ' ..: : PLUG EX. OVERFLOW FILLING W/ NON -SHRINK EPDXY i i " ' ' ` PIPE BY FILLING W/ GROUT A MIN, OF 2 FEET. 1_L_ NON- SHRINK EPDXY ----------+ ��r i GROUT A MIN. OF 2 ROMAC 501 CPLG.� ----------- I�II'I� - FEET. �— 3' EX. 8" GRAVITY SEWER - IE=394.65 1 1 1 1 IE=394.45 PROPOSED 8" _ — — = • — — — — GRAVITY SEWER REPLACE 3 FEET OF EX. 8" 6" SEWER WITH 8" PVC. ROMAC ` CONTRACTOR TO VERIFY EX. 3 CDF GRAVITY SEWER PIPE TYPE AND 501 CPLG. _ PROPOSED GRAVITY PROVIDE APPROPRIATE ROMAC BEHIND EX. OVERFLOW COUPLING. r • . STORAGE STRUCTURE PIPE PENETRATION, TYP. (SEE NOTE #1 BELOW) : SAND RECHANNEL MH w/ GROUT MIN. 6" DEPTH SAND OR CDF EX. 96" 0 MH : ' " EX. 96"0 MH 380.4± 378.4f CLOSE VALVE & REMOVE TOP SECTION OF VALVE BOX & STEM CUT 24"0 HOLE IN BOTTOM OF MANHOLE NOTE: 1. ALL PIPE PENETRATIONS IN WET WELL, OVERFLOW STORAGE VAULT, AND VALVE VAULT SHALL USE LINK SEALS UNLESS OTHERWISE APPROVED. KOR-N-SEAL BOOTS SHALL BE USED FOR PIPE PENETRATIONS IN MANHOLES. ALL PENETRATIONS SHALL BE MADE WATERTIGHT. LIFT STATION REMOVAL & WET WELL RECHANNELIZATION DETAILS NTS Roth Hill, LLC Tel 425.869.9448 www.rothhill.com 11130 NE 33rd Place, Suite 200 Bellevue, WA 98004 aje;5- 34)311