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Home My WebLink AboutTED4003199.3c� 0 C) w C)F__a U N F C)a N N � � 00 f� J CL -j J F�- I_ C)LLJ V) C) Q Q at� LjJ Q z Q Lj Ld Q CL Z C.L.0 z 0 z W Ix a �y tlj r N o Q r y N 2 0 4 cOo o✓ a Ld EROSION CON TROL NO TES 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRECONS7RUC77ON MEETING MUST BE HELD WITH THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN ENGINEERS. 2. ALL LIMITS OF CLEARING AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD AND OBSERVED DURING CONSTRUCTION. J. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR OTHER COIVSTRUCT70N TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE NATURAL DRAINAGE SYSTEM. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SA77SFACTORY CONDIT70N UN77L SUCH TIME THAT CLEARING AND/OR CONSTRUCTON IS COMPLETED AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTA7I0N CONTROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMI TTEE. 4. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL COND177ONS DICTATE, THE PERMIT7EE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO INSURE COMPLETE SIL TA 77ON CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMI TTEE TO ADDRESS ANY NEW CONDI T70NS THA T MA Y BE CREA TED BY HIS ACT7W 77ES AND TO PROVIDE ADDI TIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED TO PROTECT ADJACENT PROPER77ES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 5. APPROVAL OF THE PLAN IS FOR EROSIONISEDIMENTA77ON CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCA77ON OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. 6. DURING THE 77ME PERIOD OF NOVEMBER 1 THROUGH MARCH 31, ALL PROJECT DISTURBED SOIL AREAS GREATER THEN 5,000 SQUARE FEET, THAT ARE TO BE LEFT UNWORKED FOR MORE THAN TWELVE (12) HOURS, SHALL BE COVERED BY MULCH, SODDING, OR PLASTIC COVERING. 7. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETA 77ON AND WHERE NO FURTHER WORK IS ANTICIPA TED FOR A PERIOD OF 30 DAYS OR MORE, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS PLAN77NG OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO 774E TIME OF YEAR /N QUESTION. GRASS SEEDING ALONG WILL BE ACCEPTABLE ONLY DURING THE MON77-IS OF APRIL THROUGH SEPTEMBER INCLUSIVE SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS IN T74E INTEREST OF THE PERMITTEE, BUT MUST BE AUGMENTED WITH MULCHING, NETTING, OR OTHER TREATMENT APPROVED BY 774E CITY OF RENTON, OUTSIDE THE SPECIFIED TIME PERIOD. & FOR ALL EROSIONISEDIMENTA77ON CONTROL PONDS WHERE 774E DEAD STORAGE DEPTH EXCEEDS 6 INCHES, A FENCE, A MINIMUM OF 3 FEET HIGH IS REQUIRED, WITH 3.• 1 SIDE SLOPES 9. A TEMPORARY GRAVEL CONSTRUCTION ENTRANCE 30' X 50, X 8" OF 4" - 6 INCH QUARRY SPALLS SHALL BE LOCATED AT ALL POINTS OF VEHICULAR INGRESS AND EGRESS TO THE CONSTRUCTION SITE. STANDARD STRENGTH FIL TER FABRIC AROUND GRA TE JFIL-EREDT WA TER z CA TCH BASIN � SEDI MEN r PRO TIC TION FOR EXIS TING CA TCH BASIN U � R/W >- EXISTING GROUND �it 3 Li 12" MIN. j LLJ Ea � CY ELEVA TION ISTING GROUND I100' MIN. EXCEPT MAY BE REDUCED TO 50' MIN, FOR SITES WITH LESS THAN 1 ACRE OF EXPOSED SOIL, R=25' MIN. �ftlj ° ° >- 15' o o 0 w Q k o °off o q ry a PLAN EXISTING DRIVEW Y -1 RAMP OR SITE ACCESS ROAD 1, Use 4' to 8' quarry spans or crushed rock for surfacing as shown, Material with 'fines' is not acceptable, 2, The 100' minimum length shall be lengthened as necessary to insure material is not tracked into the public right-of-way, TEMPORARY ROCK CONSTRUCTION ENTRANCE DETAIL NO. BR23 I%0 310 297.5 SEDIMENT TRAP 256 SQUARE FEET AT ELEV, 297.5(17'X21 TOP OF BERM = 298.5 BOTT. ELEV. = 295.0 CREST OF 6' WIDE 6' MIN WID TH EMERGENCY SPILLWAY 298 5(TOP BERM) 1 EMBANKMENT COMPACTED TO 95% 0a0-0-0-0-0 PERWWS MA7FRI4LS SUCH AS GRAVEL OR CLEAN SAND SHALL tn \/ NOT BE USED SEDIMEN T TRAP CROSS SECTION L-1.5' SEDIMENT STORAGE 2' SETTING DEPTH & 1' DEPTH OF 2"-4" ROCK, 1' DEPTH OF 3/4"-1/2" WASHED GRAVEL. SEDIMENT TRAP OUTLET N TS CLEARING LIMI IS 75' RL TER CA001/- Cll F OVERFLOW SPILLWAY 6' MIN WIDTH NOTE: MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM t � 1 l� EX 20' PR1 VA TEA C` FILTER FABRIC NOTES A. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TZ)l THE LENGTH- OF THE BARRIER TOr AVO/Z7 USE OF JOVVTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MIN. 6" OVERLAP, AND BOTH ENDS SECURELY FASTENED TO THE POST. B. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF 6' APART AND DRIVEN SECURELY INTO THE GROUND (MIN. OF 30 "). C. A TRENCH SHALL BE EXCA VA TED, ROUGHLY 8" WIDE AND 12" DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE FILTER FABRIC TO BE BURIED, D. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY WIRE STAPLES AT LEAST 1- LONG, TIE WIRES, OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MIN. OF 4" AND SHALL NOT EXTEND MORE THAN 36" ABOVE THE ORIGINAL GROUND SURFACE. E. 774E STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20" OF THE FABRIC SHALL EXTEND INTO THE TRENCH. THE FILTER FABRIC SHALL NOT EXTEND MORE THAN 36" ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. F. WHEN EXTRA STRENGTH FILTER FABRIC AND CLOSER POST SPACING ARE USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF STANDARD N07ES APPLYING. G. THE FENCE SHALL BE BACKFILLED WITH 314" MIN. DIAMETER WASHED GRA VEL. H. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PEWANEMTLY STABILIZED: I. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. 91AS-BUILT 9$ NOTE. (EXPIRES 6/22/05 'AS -BUILT'" IS BASED ION A ACTUAL FIELD SURVEY BY TOUMA ENGINEERS AND INFORMA77ON SUPPLIED BY CONTRACTOR. NE 24th STREET 30' FILTER FABRIC MA TERIAL L 2" BY 2" BY 14 GA. WIRE FABRIC OR EQUAL. PROVIDE 3/4" - 1-1/4" BACKFILL IN TRENCH AND BOTH SIDES OF FILTER FA ON THE SURFACE. 8" MIN. 2" BY 4" WOOD POST ry AL T. STEEL FENCE POSTS. MIRAFI 100 X BIDUM OR EQUIV. FILTER FABRIC MATERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH TO WIRE. 2" BY 2" BY 14 GA. WIRE FABRIC OR EQUIV. i�IR Y BOTTOM .9F FIL NR FABRIC TERIAL IN 8 BY 12 TRENCH. _2" BY 4" WOOD POST u AL T. STEEL FENCE POSTS FIL TER FABRIC FENCE DE TAIL N. T. S. l?dft3l!994D,3 FILTER FABRIC MA TERIAL L 2" BY 2" BY 14 GA. WIRE FABRIC OR EQUAL. PROVIDE 3/4" - 1-1/4" BACKFILL IN TRENCH AND BOTH SIDES OF FILTER FA ON THE SURFACE. 8" MIN. 2" BY 4" WOOD POST ry AL T. STEEL FENCE POSTS. MIRAFI 100 X BIDUM OR EQUIV. FILTER FABRIC MATERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH TO WIRE. 2" BY 2" BY 14 GA. WIRE FABRIC OR EQUIV. i�IR Y BOTTOM .9F FIL NR FABRIC TERIAL IN 8 BY 12 TRENCH. _2" BY 4" WOOD POST u AL T. STEEL FENCE POSTS FIL TER FABRIC FENCE DE TAIL N. T. S. l?dft3l!994D,3 I 4 00 I I I I I eW o I W Z i W Z Lij o I MB I� i 0 30' W � m i I Q EXPIRES SCANNED APR 2 CONSTRUCTION SEQUENCE NOTES 1. ARRANGE AND ATTEND PRE -CONSTRUCTION MEE77NG WITH CITY OF RENTON DEPT OF PUBLIC WORKS. 2. FLAG PROPERTY LINES AND CLEARING LIMITS. J. INSTALL ROCK CONSTRUCTION ENTRANCE. 4. ERECT FIL TER FENCE. 5. CLEAR FOR AND INSTALL SEDIMENT TRAP PER PLAN. 6. CLEAR AND GRUBB SI7F 7. CONSTRUCT INTERCEPTOR DITCHS (W9TH ROCK CHECK DAMS, IF NECESSARY) TO 7EMPORARY SEDIMENT TRAP. 8. DURING 774E PERIOD OCT 1 TO MAR. 31, ALL PROJECT AREAS GREATER THAN 5000 S.F SHALL BE MULCHED. 9. ROUGH GRADE PER ROADWAY AND GRADING PLAN. 10. INSTALL REMAINDER OF STORM DRAINAGE DETENTION SYSTEM. 11. INSTALL STORM DRAINAGE CONEYANCE SYSTEM. • STORM PIPES, DITCHES, CB, MH, ETC. 12. INSTALL INTERIM CB SILT 7RAP PROTECTION. 13. INSTALL 0774ER UTILITIES, SANI TAR Y SEWERS, WATER PIPES, ETC. 14. FINE GRADE AND PAVE THE SITE. 15. HYDROSEED, MULCH, AND PLANT LANDSCAPE MATERIALS 16. REMOVE THE REMAINING 7EMPORARYISEDIMENTA 77ON CONTROL ONLY AF7FR THE S17F HAS BEEN STABILIZED AND THE RENTON SITE DEVELOPMENT INSPECTOR HAS APPROVED THE REMOVAL. 17. CLEAN UP THE STORM DRAIN SYSTEM. RECOMMENDED FOR APPROVAL BY"DATE BY DATE BY DATE BY DATE BY DATE MMM NO: 82506SITE.DWG (C 3'. 3 0` 4 I I TES