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Home My WebLink AboutS-3235360 of C) I 0 LO i V) i z O cn w 0 0 0 0 L2 0 0 i LZ 6j Q z W _1 w rn 0 0 N Z O U) w J O 'S W FILTER FABRIC (MIRAFI IOOX OR EQUIV. 60" WIDE ROLLS). USE STAPLES OR WIRE RING TO ATTACH FABRIC TO WIRE (TYP) II II L_>~I__ - ------ ---- - - --- BU I I i RS' BOTTOM OF FABRIC r U MATERIAL IN 4 "x 4" TRENCH L1 6' MAX. ** ®� 2"x 4" WOOD POSTS, STANDARD OR BETTER GRADE OR EQUAL. @ 6' O.C., ALTERNATE; STEEL FENCE POSTS * POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED ■ -� O 2 "x 2 "x 14 GA. WIRE FABRIC OR EQUAL (TYP) O O I 1 N O O N I I SL" OPP - - - -- 00000 I I MIN.' J PROVIDE 3/4" — 1 1/2" DIA. WASHED GRAVEL BACKFILL WITH NATIVE SOIL SIDE VIEW 1. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6 —INCH OVERLAP AND BOTH ENDS SECURELY FASTENED TO THE POST. 2. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS (WHERE FEASIBLE), THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). 3. A TRENCH SHALL BE EXCAVATED, ROUGHLY 4 INCHES WIDE AND 4 INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE FILTER FABRIC TO BE BURIED. 4. 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 —DUTY WIRE STAPLES AT LEAST I INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE, 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 30 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. 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 NOTE 5 APPLYING, 7. THE TRENCH SHALL BE BACKFILLED WITH 3/4 —INCH MINIMUM DIAMETER WASHED GRAVEL, 8, FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED, 9. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. ilk, I V' \I%i G THE FOLLOWING PERMITS HAVE BEEN OBTAINED & ARE BOUND WITH THE SPECIFICATIONS: (1) KING CO. GRADING /CLEARING. (2) KING CO. SPECIAL USE. (3) KING CO. RIGHT —OF —WAY (4) DEPT. OF FISH & WILDLIFE HPA. CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE PERMIT CONDITIONS INCLUDING BUT NOT LIMITED TO: (1) TOPSOIL AMENDMENT. (2) DISPOSAL OF EXCESS EXCAVATED MATERIAL. (3) WET SEASON CONSTRUCTION PER KC SURFACE WATER DESIGN MANUAL APPENDIX D (2005). r• DROP INLET WITH GRATE RUNOFF WATER WITH SEDIMENT .. r IL. I tK r mumiu uivur_m GRATING GRATING PROVIDE AT ALL CATCH BASINS DRAINING AREA AFFECTED BY WORK. 27 A A L= DISTANCE SUCH THAT POINTS A & B ARE OF EQUAL ELEVATION. CHECK DAM SPACING SAND BAGS B 1 1. APPROVAL OF THIS TEMPORARY EROSION /SEDIMENTATION CONTROL (TESC) 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. CONTRACTOR REQUIRED TO SUBMIT TESC AND DEWATERING PLAN TO OWNER AND ENGINEER FOR REVIEW PRIOR TO CONSTRUCTION. 3. CONTRACTOR AND AN ON —SITE REPRESENTATIVE OF OWNER WILL REVIEW THE INSTALLATION, MAINTENANCE AND PERFORMANCE OF THE TESC MEASURES SHOWN ON THE APPROVED PLANS. THE TESC OBSERVER OR PERMITTING AGENCY MAY RECOMMEND ADDITIONAL MEASURES OR CHANGES TO THE TESC PLAN THAT ARE WARRANTED DURING CONSTRUCTION. THE CONTRACTOR AND OBSERVER WILL EXAMINE ALL TESC MEASURES PERIODICALLY DURING THE CONSTRUCTION PERIOD, AND AFTER STORMS HAVING 0.5 INCHES OR MORE OF RAINFALL IN A 24 —HOUR PERIOD. THE OBSERVER AND THE PERMITTING AGENCYHAVE THE AUTHORITY TO REQUIRE CORRECTIVE ACTION IN ORDER TO ACHIEVE EROSION CONTROL OBJECTIVES. 4. THE IMPLEMENTATION OF THESE TESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE TESC FACILITIES IS THE RESPONSIBILITY OF THE CONTRACTOR UNTIL ALL CONSTRUCTION IS APPROVED. TESC MEASURES SHALL REMAIN FUNCTIONING AND IN PLACE UNTIL THE SITE HAS BEEN STABILIZED AND THE PERMITTING AGENCY, OWNER OR ENGINEER HAS APPROVED THE REMOVAL OF THE TESC MEASURES. 5. AS CONSTRUCTION PROGRESSES AND UNEXPECTED SEASONAL CONDITIONS DICTATE, ADDITIONAL TESC MEASURES MAY BECOME NECESSARY TO PROTECT ADJACENT PROPERTIES AND TO ENSURE WATER QUALITY FOR SITE RUNOFF. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO ADDRESS DEFICIENT TESC CONDITIONS, AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE THE MINIMUM REQUIREMENTS OUTLINED ON THE APPROVED PLANS AS NEEDED. 6. THE TESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED IN CONJUNCTION WITH ALL CLEARING AND GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE DRAINAGE SYSTEM OR VIOLATE APPLICABLE WATER QUALITY STANDARDS. 7. THE TESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE TESC FACILITIES SHALL BE UPGRADED (E.G. ADDITIONAL SUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.) AS NEEDED FOR STORM EVENTS. 6. THE TESC FACILITIES SHALL BE INSPECTED DAILY BY THE CONTRACTOR AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTIONING. 9. ANY AREA NEEDING TESC MEASURE, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE STABILIZED WITHIN FIFTEEN (15) DAYS. 10. AT NO TIME SHALL MORE THAN ONE 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. DATE: FIELD REP:_ REVISED BY REVISED TO INDICATE CONSTRUCTION RECORDS MARK WETHERBEE BRIAN O MARCH 10, r •0• 0 O N Roth Hill Engineering Partners, LLC SURVEYED: SCALE: vERncAL NAw 19e8 2600116th Avenue NE #100 DESIGNED: NOTED HORIZONTAL- NAD 1983/1991 EJW/SKS aBellevue, Washington 98004 DRAWN: SH ONE INCH (� z Tel 425.869.9448 CHECKED: DATUM AT FULL SCALE IF NOT ONE INCH Fax 425.869.1190 NO. REVISION BY DATE A P P R APPRO'.�: SCALE ACCORDINGLY 2 WALIG 38087 1 Q- rISIT CITY OF RENTON Planning /Building /Public Works Dept. 10 11 A note] A :111111 Its] . I8I[+0601IN *gem 11 :1 T K SLID WAS7i'1�� ti m /o iP PAGE: