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HomeMy WebLinkAboutR-400304O O O w c� 0 CU LEI 0 0 I 0 U) 1- Ld LEI U) 0 0 Q U i LEI U Q ry ry Ld - Ld V)In z V) ry Don o�ry %moo 0-0)ftf Lij :2 :2Q QFz z Ld LLJ J 0 Cn Ea- z EROSION CONTROL NOTES 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTEWATER UTILITY, WATER UTILITY, AND TRANSPORTATION PLANS: \ q� 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER. 3. THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION IN ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 0� \ 4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE \ ,, ` DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE VA INSTALL INLET PROTECTION ys� �REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR USING STRAW WATTLES OR / FOR THE DURATION OF THE PROJECT. OTHER APPROVED BMP AT $ �oojl����9�� FILTERRA UNITS / 5. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND e8;4.�CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND PROPERTIES. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL °_ °° �' SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE I IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTATION CONTROL SYSTEMS SHALL BE THE �3377 - - - �3a\ S U S E N E RESPONSIBILITY OF THE PERMITEE. - 40or 6. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM PROPOSED BUI ING 8 - �sd OUTLINE - Qs - - _ REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL w CONDITIONS DICTATE, THE PERMITEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE -.\ NECESSARY TO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT ------------ =3�8 , SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED 43 �/V/> I. FORMED FOR CONC. POUR I BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES OVER AND ABOVE MINIMUM REQUIREMENTS AS MAY BE NEEDED TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. SIN,, r----- O �§��(/ ¢ �� - - - - - - - _ _ �____ _ R `°"Srn°°n° I j 7. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM ���`' g , - g - Im ❑ ❑ " I �I _ ®®� I DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. ��_ - - - --- 8. ANY AREAS OF EXPOSED SOILS INCLUDING ROADWAY EMBANKMENTS THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING - - - - - - - n NEW CONCRETE WALK w w , , INSTALL INLET PROTECTION 2 // f - - - - - - - - - _ _ °�^ �_ N354258°E L.L.A. IMPLIED E THE WET SEASON (OCTOBER 1ST THROUGH MARCH 30TH) OR SEVEN DAYS DURING THE DRY SEASON (APRIL 1ST THROUGH USING STRAW WATTLES OR O O �''� I 338_ _ 1s7.si' CALL. (137.7 SEPTEMBER 30 SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS E.G., SEEDING, MULCHING, OTHER APPROVED BMP AT � C1 -- � _ � � ENCLosv N 185218.5 3 \ PLASTIC COVERING, ETC.). T� E 1307138.73 P?_,Z R R A UNITS vI _ _ _ I - -337- - - STAIRWAY FACE OF BUILDIN _ 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES CLEARING �'�` ® �,• INTERCEPTOR SWALE WISH �h. ELEV=33a. \ BETWEEN OCTOBER 1 AND MARCH 30 INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY THROUGH AN ADJUSTMENT �` `J�` I °�� CHECK DAMS PER COR S 338 /',,- A;p EXISTING LIBRARY r'� •�, s� � / ti F A I 1 % PROCESS. �` 315.5f -� �` PLAN 217.10 AND 217.40/ o jf DRIVEWAY. CONTRACTOR K�,a g,� �'� i I �$' - I , , - 2F SHALL COORDINATE 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL. ACCESS SHUT DOWNS ;'o � - ELEV=334. WITH PROPERTY OWNERS 11. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. o �� / i ' _ CONNECT EXISTING 9? 12. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN 24 As / I 1 p ROOF DRAIN TO HOURS FOLLOWING A STORM EVENT. /-320.0f II DEWATERING PUMP g - L. V/ 13. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH 0 'sqp, N TL# 7227801065 BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH p�o� 9 J'�. TL# 7227801075 o ����' �+l��c� SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. GHT OF WAY LINE ti !�� KLNT3111C1wIL&NDS LIBRARY YP) 9 I s;378 ( I `''�' N Li�tucrloN� 4.5-FT DEEP SEDIN IT TRAP 11.5�5SKOIM NT i` , �, 14. DURING THE TIME PERIOD OF OCTOBER 1ST THROUGH MARCH 30TH, ALL PROJECT DISTURBED AREAS GREATER, THAT ARE TO STORAGE, 3.5-FT SETTING DEPTH, 1-FT FIR BOARD) I BE LEFT UN -WORKED FOR MORE THAN 12 HOURS, SHALL BE COVERED BY MULCH, SODDING OR PLASTIC COVERING. WITH 20-FTx20-FT BOTTOM AREA 3:1 SIDE, LOPES, �� WITH 1-INCH DEWATERING ORIFICE AND 10LICH I f ( 0 15. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE OVERFLOW RISER OR 1,330 CF BAKER TANK IWITH SUMP aw I GARAGE WALL NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS PUMP PER COR STD PLAN 216AP (SHEET C1.I3) TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE FM STABILIZED OIUSTRUCTION ELEV=334.95 BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. I ''� � ' FM ENTRANCE PER COR STD J� 16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES PROPO* BUILDING PLAN 215.10 - I I U___ GARAGE WALL CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE OUTLINE 15-FTI ,3 335 BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED 3 * f\ I l\ s� ' - 336 SHALL BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW. 3 32 t _ V. 320.8f ` B� - 337 -338 �pls9 - �` Y 338 320.8f 3 _ - - - _ - 3333.0f LEGEND: 3s - -- - - 34 FACE OF BUILDING (1) (D S (D (D SHORING WALL PER STRUCTURAL SHEET S000 0 ti�4 imI-3" N35-4z'58"E L.L.A. IMPLIED BOUNDARY LINT �ol� � � � S 85. & 125.18' CALC.*(12s.s1' LLA) SILT FENCE PER COR STD PLAN 214.00 N 1 145.60 CATCH BASIN F�� T ,39 \ ✓LIGHT POLE A7THE 70 WALL \� -� E 130 ��T4 FM FORCE MAIN PER COR STD INTERCEPTOR SWALE WITH CHECK DAMS 3 �� i°33895 _ PER COR STD PLAN 217.10 AND 217.40 \ 216.30 (TYP) G:338.4g - w do - �ol��* N / TC: 341.41 �- G: 340.90 TC:344.50 �' g P/ w. GC3 2.280 g�ys� �,� v'vs 340.Oi G:343.99 ❑ ❑ ❑ ❑ CHAIN LINK FENCING (6-FT MIN HEIGHT) AND T. �'�s �`�' %��' a�`� a74o7 • ET e` V STORMWAt,8> ti ,� CLEARING AND FADING LIMITS, AND CLEARING LIMITS �s � �.gk 'a�`�o R2»18, �C�mr O DISCHARGE POINT. CHAIN LINK FENCNG (6-FT MIN HEIGHT)1mrxnr1mr STABILIZED CONSTRUCTION ENTRANCE Ck ��`�`'`�, 0) '� SHORING WALL (TYP) PER COR STD PLAN 215.10 q��; 4b SILT FENCE (TYP) `h��? ° TEMPORARY GRADING LAYBACK PER STRUCTURAL SHORING RECOMMENDED CONSTRUCTION SEQUENCE 2PLAN 13 30SHAND 20300STABILIZED PER COR STD PLANS 213.20, �.2 9. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH CITY OF RENTON , 1. HOLD THE PRE -CONSTRUCTION MEETING. STANDARDS AND MANUFACTURER'S RECOMMENDATIONS. CATCH BASIN FILTER PER COR STD PLAN 216.30 10. RELOCATE EROSION CONTROL MEASURES, OR INSTALL NEW MEASURES SO THAT AS ' 2. POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE DEWATERING PUMP SITE CONDITIONS CHANGE, THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN © CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN). ACCORDANCE WITH CITY OF RENTON STANDARDS. C1.4 �1 niPPrTIr)K1 11F CIIRFArP' RIIkI(lF47 3. FLAG OR FENCE CLEARING LIMITS. 11. COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR 12 HOURS DURING THE WET SEASON WITH STRAW, WOOD 4. INSTALL CATCH BASIN PROTECTION. FIBER MULCH, COMPOST, PLASTIC SHEETING, OR EQUIVALENT. 5. GRADE AND INSTALL CONSTRUCTION ENTRANCE. 12. STABILIZE ALL AREAS WITHIN SEVEN DAYS OF REACHING FINAL GRADE. 6. INSTALL PERIMETER PROTECTION (SILT FENCE, STRAW WATTLES, ETC.). 13. SEED, SOD, STABILIZE, OR COVER ANY AREAS TO REMAIN UNWORKED FOR MORE SCALE: 1" = 20' 7. CONSTRUCT SEDIMENT TRAPS WITH SUMP PUMPS. THAN 30 DAYS. 14. UPON COMPLETION OF THE PROJECT, STABILIZE ALL DISTURBED AREAS AND 0 20 40 60 8. CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE DRAINS, REMOVE BMPS IF APPROPRIATE. ETC.) SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT. CONSTRUCTION RECORD DRAWING THIS CONSTRUCTION RECORD DRAWING IS A COPY OF THE APPROVED CONSTRUCTION DRAWING PREPARED BY OSBORN CONSULTING INC. AND HAS BEEN EDITED USING INFORMATION PROVIDED BY OAK HILLS CONSTRUCTION, LLC TO REFLECT ASBUILT CONDITIONS APPROVED BY: DATE: APPROVED BY: DATE: APPROVED BY: DATE: APPROVED BY: DATE: R-400304 Know what's below. Cali before you dig.