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HomeMy WebLinkAboutD-322303all a O z W w LL z 0 W W 0 i U Q 0 i 0 U 0 a 0 0 / U V) z z 0 F- z Ld ry 0 0 0 (D i 0 0 i i LL_ 0 �7__ U z 0 F- z Ld rn L 0. / V) i E i 0 0 N 0 0 U CL C_ MWASTRUCTION NOTES: O1 PROVIDE SAND OR GRAVEL - FILLED BAG COFFERDAMS TO MINIMUM HEIGHTS A SHOWN. COFFERDAMS TO BE CONTRACTOR DESIGNED AND ARE NOT DRAWN TO SCALE. WIDTH OF COFFERDAMS TO BE DESIGNED TO ALLOW FOR CHANNEL IMPROVEMENT. O INSTALL TWO 48" DIAMETER SMOOTH WALL CPEP TEMPORARY DIVERSION PIPES FOR CREEK BYPASS. INLET SHALL BE MITERED. BYPASS PLAN SHOWN IS SCHEMATIC. CONTRACTOR SHALL PROVIDE BYPASS PLAN IN ACCORDANCE WITH SPECIFICATIONS FOR APPROVAL BY CITY ENGINEER. LOCATE DIVERSION DAMS AND BYPASS PIPES TO ALLOW FOR CONSTRUCTION OF OTHER IMPROVEMENTS INCLUDING WINGWALLS AND LOGS WITH ROOTWADS, UPON COMPLETION OF THE PROJECT, ALL MATERIALS USED FOR THE TEMPORARY BYPASS SHALL BE REMOVED FROM THE SITE AND THE SITE RESTORED TO PREPROJECT CONDITIONS. O ALL DEWATERING WATER AND RUNOFF WITHIN CONSTRUCTION AREAS SHALL BE TREATED WITH A SEDIMENTATION POND OR A PORTABLE FILTRATION TANK AND WITH POLISHING TREATMENT BY PUMPING OUTFLOWS TO A VEGETATED AREA PRIOR TO DOWNSTREAM DISCHARGE. CONTRACTOR SHALL COORDINATE WITH ENGINEER FOR PUMP DISCHARGE LOCATION. CONTRACTOR SHALL DESIGN AND CONSTRUCT A WATER QUALITY TREATMENT SYSTEM THAT MEETS ALL APPLICABLE LOCAL, STATE, FEDERAL WATER QUALITY REGULATIONS AND REQUIREMENTS OF THE SWPPP. METHODS OF TREATMENT SHALL BE DETAILED IN CONTRACTOR'S TESC PLAN. ® PROVIDE TEMPORARY SUPPORT OF EXISTING UTILITIES DURING CONSTRUCTION OF TEMPORARY BYPASS AS NECESSARY. �5 PROVIDE TEMPORARY CONNECTION FROM 36" CONC SD TO TEMPORARY 48" CREEK BYPASS. © CONNECT TEMPORARY BYPASS PIPE TO 60" OUTFALL WITH WATERTIGHT SEAL AND DISCHARGE DOWNSTREAM OF COFFERDAM. MINIMUM BYPASS PIPE SIZE SHALL BE 36" DIAMETER. 07 LIMITS OF TEMPORARY ROAD CLOSURE AREA (TO 90 FT WEST AND 65 FT EAST OF EXIST CULVERT CENTERLINE). SEE SPECIFICATIONS FOR ROAD CLOSURE LIMITATIONS. ® INSTALL CATCH BASIN INSERT. ® EXCAVATE SUMP FOR COLLECTION OF SURFACE RUNOFF WITHIN CONSTRUCTION AREA. PUMP TO PORTABLE FILTRATION TANK OR SEDIMENTATION POND. SURROUND SUMP WITH TEMPORARY SILT FENCE. NOTES: GENERAL 1. WING WALLS AND LOGS WITH ROOTWADS SHOWN FOR REFERENCE ONLY. CONSTRUCT DIVERSION TO ALLOW FOR CONSTRUCTION OF IMPROVEMENTS. 2. THE APPROXIMATE WATER SURFACE ELEVATION DURING AN EXTENDED PERIOD OF NO RAIN IS APPROXIMATELY 10.0. ED H LA I y SCALE: 1 " =20' ® 12" WATER V) 4 TEMPORARY PSE 4" GAS MIN EL 13.5 COFFERDAM �; WSEL, SEE GENERAL MIN EL 15.0 48" BYPASS EXISTING o SIDEWALK SIDEWALK o EX 36" COND SD ® TEMPORARY NOTE 2 CULVERTS (2) GRADE � cry COFFERDAM 2 0— IE. 8..5 ±...... ........... .................... .....IE 8:0 ±. --20 FLOW _ 5 — .......... I .... ........ ..... ....... QUEST —10 SUPPORT BYPASS COMMUNICATION 4 SS PSE POWER DUCT ( 5 PIPES AS NECESSARY DUCT (�) CREEK B PROFILE . GIBS WASftj < NO .�42- �GI ST I ONA L o. EXPIRES: �2 °04 —Q� SCALE: 1 " =20' 0 ISSUE FOR BID NO. REVISION SURVEYED: DH &A DESIGNED: BB DRAWN: CAD —2 -0 CHECKED: -- JAB BY DATE AP P R I APPROVED: — MSG SCALE: AS SHOWN ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 y DATUM a oi� IMC NO • 1. APPROVAL OF THIS EROSION AND SEDIMENT CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (E.G., SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION FACILITIES, UTILITIES, ETC.). 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE CONTRACTOR UNTIL ALL CONSTRUCTION IS APPROVED. 3. THE BOUNDARIES OF THE CONSTRUCTION LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY THE CONTRACTOR USING YELLOW CONSTRUCTION TAPE WITH 2 "X4" WOODEN STAKES SPACED AT 20' MAXIMUM PRIOR TO CONSTRUCTION. ELECTRONIC FILES WILL BE PROVIDED TO THE CONTRACTOR FOR LOCATION OF THE LIMITS. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CONSTRUCTION LIMITS SHALL BE PERMITTED. THE CONSTRUCTION LIMITS SHALL BE MAINTAINED BY THE CONTRACTOR FOR THE DURATION OF CONSTRUCTION. THE LIMITS OF WORK FOR SEWER MAIN RELOCATION ARE NOT SHOWN. 4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. 5. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR CONSTRUCTION SEQUENCING AND UNEXPECTED STORM EVENTS AND SHALL BE MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G., ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.). 6. THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE CONTRACTOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES DURING THE WET SEASON (OCT. 1 TO APRIL 30) AND OF MONTHLY REVIEWS DURING THE DRY SEASON (MAY 1 TO SEPT. 30). DAMAGED OR IMPROPERLY FUNCTIONING BMPS SHALL BE REPLACED AT NO ADDITIONAL COST TO THE CITY. 7. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). 8. FROM OCTOBER 1 THROUGH APRIL 30, NO SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE. THAN 7 DAYS. ANY UNWORKED SOIL SHALL BE STABILIZED WITH A CITY APPROVED BEST MANAGEMENT PRACTICE (BMP). 9. ANY AREA NEEDING ESC MEASURES NOT REQUIRING IMMEDIATE ATTENTION SHALL BE ADDRESSED WITHIN FIFTEEN (15) DAYS. 10. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN FORTY -EIGHT (48) HOURS FOLLOWING A STORM EVENT. 11. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT- LADEN WATER INTO THE DOWNSTREAM SYSTEM. 12. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF 2 TO 3 INCHES. 13. USE REINFORCED PLASTIC FIBER TO COVER STOCKPILED ITEMS WHEN NOT IN USE. THE REINFORCED PLASTIC FABRIC SHALL BE HELD DOWN B% A MINIMUM OF 10LB SANDBAGS PLACED EVERY 10 FEET ALONG THE EDGE AND ACROSS THE PILE 14. IN ACCORDANCE WITH THE DEPARTMENT OF ECOLOGY REQUIREMENTS, WASTEWATER FROM CEMENT CONCRETE, MASONRY, OR ASPHALT CONCRETE CUTTING OR POURING OPERATIONS SHALL NOT BE DISCHARGED INTO STORM DRAINAGE SYSTEMS OR SURFACE WATERS. IMPERVIOUS SURFACES CONTAMINATED WITH SEDIMENT AND GRIT FROM CUTTINGr PLANING OR PULVERIZING OPERATIONS SHALL BE VACUUM - CLEANED TO PREVENT CONTAMINANTS FROM ENTERING THE STORM DRAINAGE SYSTEMS OR SURFACE WATERS. 15 CONTRACTOR SHALL COMPLY WITH ALL APPROVED LOCAL, STATE AND FEDERAL PERMITS AND ALL PERMIT CONSTITIONS. SEE PROJECT SPECIFICATIONS FOR COPIES OF PROJECT PERMITS. A COPY OF THE APPROVED HYDRAULIC PROJECT APPROVAL (HPA) AND SWPPP SHALL BE KEPT IN A VISIBLE LOCATION. ALL WORK BELOW THE ORDINARY HIGH WATER LINE (OHWL) SHALL OCCUR ONLY BETWEEN JUNE 15 AND SEPTEMBER 30, 2007. 16. CONTRACTOR SHALL CAPTURE AND SAFELY REMOVE AND RELOCATE FISH WITHIN THE TEMPORARY DIVERSION AREA IN ACCORDANCE WITH THE HPA REQUIREMENTS. PRIOR TO INSTALLING TEMPORARY BYPASS, CONTRACTOR SHALL OBTAIN A 'WASHINGTON DEPARTMENT OF FISH AND WILDLIFE (WDFW) SCIENTIFIC COLLECTING PERMIT PER SPEC SECTION 1 -07.6 AND INSTALL FISH BLOCK NETS AND HAND NET FISH FROM WORK AREA PER PERMIT REQUIREMENTS. CONTRACTOR SHALL HAVE A QUALIFIED BIOLOGIST CAPTURE AND SAFELY MOVE FOOD FISH, GAME FISH, AND OTHER FISH LIFE FROM THE JOB SITE. CONTRACTOR SHALL HAVE FISH CAPTURE AND TRANSPORTATION EQUIPMENT READY AND ON THE JOB SITE. CAPTURED FISH SHALL BE IMMEDIATELY AND SAFELY TRANSFERRED TO FREE - FLOWING WATER DOWNSTREAM OF THE PROJECT SITE. CONTRACTOR MAY REQUEST WDFW ASSISTANCE IN CAPTURING AND SAFELY MOVING FISH LIFE FROM THE JOB SITE TO FREE - FLOWING WATER, AND ASSISTANCE MAY BE GRANTED IF PERSONNEL ARE AVAILABLE, BUT IT IS NOT GUARANTEED. 17. CONTRACTOR SHALL COMPLY WITH ALL PROVISIONS OF THE APPROVED STORMWATER POLLUTION PREVENTION PLAN (SWPPP). CITY OF REN TON Planning /Building /Public Works Dept. 1 "= 20' -0» 20 0 20 40 mmommi Scale Feet SW 34TH STREET DATE: 03/2/07 CULVERT REPLACEMENT PROJECT FIELDBOOK: PAGE:' DRAWING NO: TEMPORARY EROSION AND SEDIMENT C 1 CONTROL AND CREEK DIVERSION PLAN SHEET: 3 OF: 16 ] 32303 co It > x 1 OC y 7� y Its �%