The URL can be used to link to this page

Home My WebLink AboutS-404604W Q Z F-- U W O D_ a_ z O F--I z Lu L1J Lu z H-1 L.L. Lu Lu �I VI Z N M r� 1 �O V / 2"x2" 14 GAUGE WIRE, OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC 8' MAX. POST SPACING MAY BE INCREASED I I \- 4"x4" MIN. TRENCH TO W IF WIRE BACKING IS USED BACKFILL TRENCH WITH NATIVE SOIL OR 3/4" TO 1-1/2' WASHED GRAVEL 2"x4' WOOD POSTS. STEEL FENCE POSTS, OR EQUIVALENT _NOTES: 1_CONDITIONS OF USE 1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS. 1.2 SIL I FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FI FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE ADS (ASTM D4751) 30-100 SIEVE SIZE (0.60-0.I S= FOR SILT FILM 50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS WATER PERMITTIVITY (ASTM D4491) 0.02 SEC' MINIMUM GRAB TENSILE STRENGTH (ASTM D4632) 180 LBS. MIN. FOR EXTRA STRENGTH FABRIC 100 LBS. MIN. FOR STANDARD STRENGTH FABRIC GRAB TENSILE ELONGATION (ASTM D4632) 30% MAX. (WOVEN) ULTRAVIOLET RESISTANCE (ASTM D4355) 70 % MIN. 2.2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SP, FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE. 2.3 WHERE THE FENCE IS INSTALLED. THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V 2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4' TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE I SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE. 2 5 FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE 3. MAINTENANCE STANDARDS 3.1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY. 3.2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE. THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POI 3.3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS. REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT. 3.4. SEDIMENT MUST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH. 3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. 2' MIN. 12" MIN. ANY CONCENTRATED ON SITE, MAY BE REQUIRED IS WELL BURIED AND CAUSING UNLESS OTHERWISE NOTED, RAWING IS NOT TO SCALE IN I S) STD. PLAN - 214.00 URIUBLIC WORKS SILT FENCE PR 9/28/2018 1 DEPARTMENT GAZ lowA,ei,. w.. AK,,.,M DATE EROSION AND SEDIMENT CONTROL (ESC) STANDARD PLAN NOTES: THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE I IEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE ESC STANDARD PLAN NOTES. 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF R NTON, HEREBY REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR. 2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (ECOLOGY) CONSTRUCTION STORMV IATER GENERAL PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED I D ECOLOGY ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT, 3. THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION COMMENCEMENT TO POST -PROJECT CLEANUP IN ORDER TO FULFILL PROJECT ESC REQUIREMENTS. 4. THE BOUNDARIES OF THE CLEARING LIMITS. SENSITIVE AREAS AND THEIR BUFFERS. AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) PRIOR TO THE START OF CONSTRUCTION. DURING THE CONSTRUCTION PERIO . NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANTIESC SUPERVISOR Foi I THE DURATION OF CONSTRUCTION. 5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION DF THE PROJECT. ADDITIONAL MEASURES. SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVEDAREAS ARE KEPT CLEAN AND TRACK -OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT, IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING WATERS OF THE STATE. 6. WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFF -SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR OPEN DITCHES. ON -SITE DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE WASHOUT AREAS. 7. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTOR I CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. ALL ESC BMPS SHAI L BE REMOVED AFTER CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON -SITE EROSION DOES NOT EXIST. THE IN PLEMENTATION. MAINTENANCE, REPLACEMENT, ENHANCEMENT. AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT. 8, ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY, 9. THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS C NSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE. THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BENECESSARY TO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RES ONSIBILITY OF THE APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL ESC BMPS, OVER A NO ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED. TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 10. APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES. RESTRICTORS, CHANNELS, OR STORMWATER FACILITIES. 11. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES SHALL BE SUBMITTED TO THE CITY FOR REV EW AND APPROVAL. 12. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SE ON (OCTOBER 1ST THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING. PLASTIC COVERING, ETC.) IN CONFORMANCE WITH APPENDIX D OF THE RENTON SWDM. 13. WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 30TH, UNLESS OTHERWISE APP ROVED BY THE CITY. 14. ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. 15. THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT, INSPECTION AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY I& BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIC ED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA. UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED TO A SEDIMENT POND OR TRAP ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING CONDITION. 17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYICE LINES SHALL BE CLEANED PRIOR TO PAVING- THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 18 ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY E BMPS AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE TEMPORARY FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 19. AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING STORMWATER FACILITIES OR ON -SITE BMPS (AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT, ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS TO AVOID SEDIMENTATION AND COMPACTION DURING CONSTRUCTION 20. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 21, PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE STABILIZED TO PREVENT SEDIMENT -LADEN WATER FROM LEAV NG THE PROJECT SITE, ALL ESC BMPS SHALL BE REMOVED, AND STORMWATER CONVEYANCE SYSTEMS, FACILITIES, AND ON -SITE BMPS SHALL BE RESTORED TO THEIR FULLY FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED.AT A MINIMUM, DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST. 22. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTEql TO SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROC RIES OUTSIDE OF ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. UNLESS OTHERWISE NOTED DRAWING IS NOT TO SCALE (NTS) AdmilSTD. PLAN - 268.00 •� PUBLIC WORKS EROSION AND SEDIMENT CONTROL PPRilk D: 1- DEPARTMENT STANDARD PLAN NOTES GAZ 9/28/2018 1 ,%air [ -PUGII[ WmA, AbAirisi,not DATE LARSON and ASSOCIATES . amj 9027 PACIFIC AVENUE. SUITE 4 TACOMA, WA 98444 (253) 474-3404 PUBLIC SANITARY SEWER EXTENSION W (SEE NOTE 7) -��- LIMITS OF PIPE ZONE 1" 0" BEDDING MATERIAL FOR I SANITARY SEWER PIPE / (SEE NOTE 5) O.D. OF PIPE FOUNDATION LEVEL 6" BEDDING FOR SANITARY SEWER PIPE NOTES, 1. PROVIDE UNIFORM SUPPORT UNDER BARREL. 2. HAND TAMP UNDER HAUNCHES. 3. COMPACT BEDDING MATERIAL TO 95% MAX. DENSITY EXCEPT DIRECTLY OVER PIPE. HAND TAMP ONLY. 4. PIPE INSTALLATION SHALL BE PER SECTION 7-08 OF THE STANDARD SPECIFICATIONS. 5. PIPE ZONE MATERIAL SHALL BE PER SECTION 9-03.12(3)' OF THE STANDARD SPECIFICATIONS OR PEA GRAVEL. 6. PIPE MUST BE ANCHORED IN SUCH A MANNER AS TO ENSURE FLOW LINE IS MAINTAINED. 7. TRENCH WIDTH SHALL BE PER SECTION 2-09.4 OF THE STANDARD SPECIFICATIONS. STD. PLAN - 40S Fil PUBLIC WORKS PIPE BEDDINGRl DEPARTMENT FOR SANITARY SEWERSN4W 1/ a Aa - A7 DATE r.ee we,.. SEEDING N 0 TES 1. SEED MIXTURE SHALL BE 107.RED TOP, 40% ANNUAL RYE, 40% CHEWING FESCUE, 10% WHITE DUTCH CLOVER, AND SHALL BE APPLIED AT THE RATE OF 225 LBS. PER ACRE. 2. SEED BEDS PLANTED BETWEEN MAY 1 AND OCTOBER 31 WILL REQUIRE IRRIGATION AND OTHER MAINTENANCE AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE. 3. FOR SEED BEDS PLANTED BETWEEN OCTOBER 31 AND APRIL 30, ARMORING OF THE SEED BED WILL BE NECESSARY. (E.G., GEOTEXTILES, JUTE MAT, CLEAR PLASTIC COVERING) 4. BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS GRADIENT TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS AND SEDIMENT BASINS. 5. THE SEEDBED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE ROUGHENING. PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE. 6. FERTILIZERS ARE TO BE USED ACCORDING TO SUPPLIERS RECOMMENDATIONS. AMOUNTS USED SHOULD BE MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS. MULCHING NOTES 1. MULCH MATERIALS USED SHALL BE HAY OR STRAW AND SHALL BE APPLIED AT THE RATE OF 1.5 TO 2.5 TONS/AC. 2. MULCHES SHALL BE APPLIED IN ALL AREAS WITH EXPOSED SLOPES GREATER THAN 2: 1. 3. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON. 4. ALL AREAS NEEDING MULCH SHALL BE COVERED BY NOVEMBER 1. �•� S.MID.D� i OF �`45'.jr ti 4 XO AL ESC' •r NO. REVISION LENGTH FT w 0 a 50 100 150 200 0 250 300 Z 350 °0 400 4so LENGTH FT a 0 a 50 100 150 200 a 250 z 300 350 400 450 LENGTH FT` a 0 d 50 100 w 150 < 200 0 250 Z 300 N 350 400 450 a a w w a 0 z n LENGTH FT 0 50 100 150 200 250 300 350 400 450 6 IN. DIAMETER PIPE 0 50 100 150 200 250 300 350 400 450 500 0 80 160 236 316 396 476 556 632 680 680 140 220 300 380 456 536 616 696 712 708 708 280 360 440 520 600 676 748 744 736 732 728 424 500 580 660 740 780 772 764 756 748 744 564 644 720 1 800 808 1 796 788 780 772 764 760 704 784 856 836 820 808 800 792 784 776 772 844 880 860 844 832 820 808 800 792 788 780 908 884 868 852 840 828 820 808 1 804 796 788 908 888 872 856 844 836 824 816 1 808 804 796 908 888 876 860 852 840 832 824 816 808 804 TIME SECONDS 6 IN. DIAMETER PIPE 0 50 100 150 200 250 300 350 400 450 500 0 80 160 236 316 396 476 556 632 680 680 220 300 380 456 536 616 696 768 760 752 744 440 520 600 676 756 836 840 828 812 804 792 660 740 820 896 932 908 888 868 856 840 832 880 960 1028 1 992 964 940 1 920 900 1 888 872 860 1100 1084 1044 1012 988 964 944 928 912 900 888 1132 1092 1056 1028 1004 984 964 948 932 920 1 908 1132 1096 1068 1040 1016 996 980 964 948 936 924 1132 1100 1076 1052 1028 1008 992 976 964 952 940 1132 1104 1080 1056 1036 1020 1004 988 976 1 964 952 TIME SECONDS 6 IN. DIAMETER PIPE 0 50 100 150 200 250 300 350 400 450 500 0 80 160 236 316 396 476 556 632 680 680 316 396 476 556 632 712 832 816 804 804 792 632 712 792 872 952 984 952 928 908 888 876 952 1028 1108 1132 1088 1052 1020 992 972 952 936 1268 1284 1224 1176 1132 1100 1068 1044 1020 1000 984 1360 11300 11248 1204 1 1164 1 1132 1104 1080 1056 1036 11020 1360 11308 11264 1224 1192 1160 1132 11108 1088 1068 11052 1360 11316 11276 1240 1208 1180 1156 11132 1112 1096 1076 1360 11320 11284 1252 1224 11200 1176 1152 1132 1116 1 1100 1360 I 1324 1 1292 1264 1236 1212 1192 1168 1152 1132 1116 TIME SECONDS 6 IN. DIAMETER PIPE 0 50 100 150 200 250 300 350 400 450 1 500 0 80 160 236 316 396 476 556 632 680 680 496 576 652 732 812 892 972 948 924 900 884 988 1068 1148 1228 1248 1192 1144 1104 1072 1044 1020 1484 1564 1484 1408 1344 1292 1248 1208 1172 1144 1116 1700 1608 1532 1464 1408 1360 1316 1280 1248 1216 1192 1700 11624 11560 11504 11452 11408 11368 11332 11304 1272 1248 1700 1636 1580 1532 1484 1444 1408 1376 1344 1 1316 11292 1700 1644 11596 11552 1512 1472 1440 1408 1380 11352 1328 1700 1652 11608 11568 1532 1496 1464 1436 1408 11384 11360 1700 1656 11616 11580 1548 1516 1484 1460 1432 11408 11388 TIME SECONDS PROCEDURE: SLOWLY PRESSURIZE THE PIPE TO 4.0 P.S.LG. ALL SEWER PIPE SHALL MEET A MINIMUM AIR ALLOW 2 MINUTES FOR STABILIZATION, ADDING PRESSURE TEST OF 4.0 P.S.I.G. FOR 5 MINUTES AIR AS REQUIRED TO STABILIZE THE PRESSURE WITH NO LOSS OF PRESSURE. IF THERE IS A LOSS AT 4.0 P.S.I.G. OF PRESSURE, THEN THE TIME OF THE DROP FROM 3.5 P.S.I.G. TO 2.5 P.S.I.G. SHALL NOT BE LESS THAN THE T1ME SHOWN ON THE ABOVE TABLES. PUBLIC WORKS AIR TEST TABLE STD. PLAN - 410 DEPARTMENT ( LOW PRESSURE) e �o< FOR SANITARY SEWERS MARCH 2008 IN COMPLIANCE WITH CITY OF RENTON STANDARDS WASTEWATER UTILITY dchristen 04/02/201 9 O DEVELOPMENT ENGINEERING jchavez 03/29/2019 S-404602 5" MAX. DRAINAGE GRATE TRIM GRATE FRAME _ C- OVERFLOW BYPASS 7 ' BELOW INLET GRATE DEVICE SEDIMENT AND DEBRIS FILTERED WATER SECTION VIEW DRAINAGE GRATE (RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (TYP.) OVERFLOW BYPASS (TYP.) BELOW INLET GRATE DEVICE ISOMETRIC VIEW NOTES: 1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. 2. INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM. 3. THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE. 4 SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE. 5, THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF SYSTEM (OVERFLOW BYPASS). 6. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL. 7. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15). B. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY. UNLESS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE (NTS) STD. PLAN - 216.30 PRIPUBLIC WORKS APPR Eo: DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018 1 1„e1, work. Ad.-Ii DATE TOE IN 4"x4'1 NOTES: 1. CONDITIONS OF USE 1.1. PLASTIC COVERING MAY BE USED ON DISTURBED AREAS THAT REQUIRE COVER MEASURES FOR LESS THAN 30 DAYS. 1.2. PLASTIC IS PARTICULARLY USEFUL FOR PROTECTING CUT AND FILL SLOPES AND STOCKPILES. 1.3. CLEAR PLASTIC SHEETING MAY BE USED OVER NEWLY -SEEDED AREAS TO CREATE A GREENHOUSE EFFECT AND ENCOURAGE GRASS GROWTH. CLEAR PLASTIC SHOULD NOT BE USED FOR THIS PURPOSE DURING THE SUMMER MONTHS. 1.4. THIS METHOD SHALL NOT BE USED UPSLOPE OF AREAS THAT MIGHT BE ADVERSELY IMPACTED BY RUNOFF. SUCH AREAS INCLUDE STEEP AND UNSTABLE SLOPES. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. PLASTIC SHEETING SHOULD HAVE A MINIMUM THICKNESS OF 0.06 MILLIMETERS. 2.2. IF EROSION AT THE TOE OF A SLOPE IS LIKELY, A GRAVEL BERM, RIPRAP, OR OTHER SUITABLE PROTECTION SHALL BE INSTALLED AT THE TOE OF THE SLOPE IN ORDER TO REDUCE THE VELOCITY OF RUNOFF. 2.3. TIRES, SAND BAGS, OR EQUIVALENT MAY BE USED TO WEIGHT PLASTIC. 2.4. SEAMS BETWEEN SHEETS MUST OVERLAP A MINIMUM OF 12 INCHES AND BE WEIGHTED OR TAPED. 3. MAINTENANCE STANDARDS 3.1. TORN SHEETS MUST BE REPLACED AND OPEN SEAMS REPAIRED. 3.2. IF THE PLASTIC BEGINS TO DETERIORATE DUE TO ULTRAVIOLET RADIATION, IT MUST BE COMPLETELY REMOVED AND REPLACED 3.3. WHEN THE PLASTIC IS NO LONGER NEEDED, IT SHALL BE COMPLETELY REMOVED. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) Aoft STD. PLAN - 213.30 PRIPUBLIC WORKS PRO DEPARTMENT PLASTIC COVERING GAZ 9/28/2018 1 PoWK work, Aamro v iot DATE LARSON_AND_ASSOCIATES scnLE. 1 "=40' HORIZONTAL- NASD 1988991 DATE: 3/27/19 DESIGNED: GJM SOUTH 132N D_STREET BOOK FlELDBOOK: DRAWN: PAGE: PAGE JHD ONE INCH DATUM SEWER_ LINE _EXTENSION DRAWING N0: CHECKED: AT FULL SCALE 8681 BASE 8681 GJM IF NOT ONE INCH DATE APPR APPROVED: SCALE ACCORDINGLY SHEET: OF: APPROVED As-Builts 4 4 :: CITY OF � RENTON Planning/Building/Public Works Dept. AHNNNNAA