The URL can be used to link to this page

Home My WebLink AboutR-372307use w z U w 00 a w 0 0 U w J_ LL ._ ........,�'TH EARTH OR GRASS LINED DEPTH J ROCK LINED 2OMPACT QUARRY SPALLS U) NOTES: 1. EARTH OR GRASS LINED DITCHES SHALL HAVE SLOPES OF 69 OR LESS AND A MAXIMUM Z FLOW VELOCITY OF 5FPS. w 2. ROCK CHECK DAMS SHALL BE USED IN EARTH OR GRASS LINED DITCHES FOR SLOPES GREATER THAN 3% Q 0 3. ROCK LINED DITCHES SHALL BE USED WHEN SLOPES EXCEED 6Z OR FOR FLOW VELOCITY GREATER THAN 5FPS. MAINTENANCE STANDARDS: 1. ANY SEDIMENT DEPOSITION OF MORE THAN 0.5 FEET SHALL BE REMOVED SO THAT THE w CHANNEL IS RESTORED TO 17S DESIGN CAPACITY. in Z IF THE CHANNEL CAPACITY IS INSUFFICIENT FOR 714E DESIGN STORM, IT MUST BE J DETERMINED WHETHER THE PROBLEM IS LOCAL (E.G., A CONSTRICTION OR BEND) OR THE CHANNEL IS UNDERDESIGNED. IF THE PROBLEM IS LOCAL, THE CHANNEL CAPACITY MUST BE INCREASED THROUGH CONSTRUCTION OF A BERM(S) OR BY EXCAVATION. IF THE PROBLEM IS UNDERDESIGN, THE DESIGN ENGINEER SHALL BE NOTIFIED AND THE CHANNEL REDESIGNED TO A MORE CONSERVATIVE STANDARD TO BE APPROVED BY CITY OF RENTON. 3. THE CHANNEL SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING OR EROSION HAS OCCURRED, AFFECTED AREAS SHALL BE PROTECTED BY RIP -RAP OR AN EROSION CONTROL BLANKET OR NET TEMPORARY INTERCEPTOR DITCH NOT TO SCALE INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT. AS PER KING COUNTY ROAD STANDARDS — '�0p R = 25' MIN N cEOTExnLE / TYPE I QUARRY SPALLS J EDGE OF EXISTING ROAD SURFACE m 4 L- 12" MIN PROVIDE FULL WIDTH OF INGRESS /EGRESS AREA - MAINTENANCE STANDARDS: 1. QUARRY SPALLS (OR HOG FUEL) SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS. 2. IF THE ENTRANCE IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF A WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASH WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND. 3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON -SITE THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS A THREAT TO PUBLIC SAFETY. IF IT IS NECESSARY TO WASH THE STREETS, THE CONSTRUCTION OF A SMALL SUMP SHALL BE CONSIDERED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP. 4. ANY ROCK SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY. 5. IF VEHICLES ARE ENTERING OR EXITING THE SI7E AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING (SECTION 5.4.1) SHALL BE INSTALLED TO CONTROL TRAFFIC. STABILIZED CONSTRUCTION ENTRANCE NOT TO SCALE A PORTION OF THESE 114 OF SECTION 14 TOWNSHIP 23N, RANGE 5E. W.M. - FILTER FABRIC MATERIAL 60" 2x2 °x14 a WIRE FABRIC OR WIDE ROLLS. USE STAPLES OR 27x2"x g WIRE RINGS TO ATTACH FABRIC TO WIRE. rl EQUIV. F1 t B" 2x2 x14 ga. WIRE FT PROVIDE 3/s - 1.5" WASHED I GRAVEL BACKFILL OR NATIVE I N SOIL IN TRENCH & ON BOTH II [SIDES OF FILTER FENCE TRTTTFFFR �E . L. FABRIC ON THE SURFACE. I I ,o I I `MIRAFI 10OX OR EQUAL FILTER I BURY BOTTOM OF FILTER I MATERIAL IN 8'x12' TRENCH. N FABRIC MATERIAL u l 6' MAX. I I U 2x4" WOOD POST STANDARD OR Tj BETTER OR EQUAL ALTERNATE: STANDARD NOTES: STEEL FENCE POSTS. A. 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, KITH A MINIMUM 6 -INCH 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 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). C. A TRENCH SHALL BE EXCAVATED, ROUGHLY 8 INCHES MME AND 12 INCHES 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 -DUTY WIRE STAPLES AT LEAST 1 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. E. 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 36 INCHES 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 M7H ALL 07HER PROVISIONS OF STANDARD N07E E. APPLYING. G. THE TRENCH SHALL BE BACKFlLLED WITH % -INCH MINIMUM WASHED GRAVEL. H. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY 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. MAINTENANCE STANDARDS: 1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY. 2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND. 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 THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT. 4. SEDIMENT MUST BE REMOVED WHEN 714E SEDIMENT IS 6 INCHES HIGH. 5. IF THE FILTER FABRIC (GEOTEXPLE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. TYPICAL SILT FENCE NOT TO SCALE aT CONTINUOUS ORANGE CONSTRUCTION FENCE, TENSAR OR EQUAL rd NOTE.* 1. SEE ESC AND CLEARING PLANS AND TYPICAL CLEARING LIMITS DETAIL FOR FENCE LOCATION CONSTRUCTION FENCING NOT TO SCALE WORK AREA SITE /ROADWAY IMPROVEMENTS PER PLAN TEMP. DITCH OR SWALE, PER PL) ROUGH OR FINISHED GRADE- 6" MAX. qk II _ I FINISHED SLOPE PER PLAN FILTER FABRIC SILT FENCE AT EXIST. GRADE DOWNSLOPE OF DISTURBED AREAS TYPICAL CLEARING LIMITS NOT TO SCALE ROX LIMIT OF GRADING 12" MAX, UNLESS NOTED OTHERWISE ON PLAN CONSTRUCTION FENCING (ORANGE PLASTIC) AT EXIST. GRADE UPSLOPE OF DISTURBED AREAS EXIST. GRADE CLEARING LIMITS L =7HE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION TYPE II QUARRY SPALLS MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH CROSS SEC710N ROCK CHECK DAM NOT TO SCALE w CHECK DAM QUARRY SPALLS R- 312307 AILM CALL BEFORE TV YOU DIG 7- 800424.5555 Cam CONSULTANTS Site Planning . Civil Engineering Land Ilse C=Itmg • Project Management 7337MAwnuq 1001 W�,WA9Ba33 www.cphconsultents.com lte ts.coasrd85 www.cahconsultan[s.com w2 r n Y u run R� ��nm„ ��R o� wow I -- N/A wwa a ww,aep E> LIBERTY GARDENS 02/21/14 °®"°`""'�' "' CITY OF Approved by: Date: (y AMIE B. SCHROEDER, PE ROADWAY GRADING, DRAINAGE AND SANITARY SEWER IMPROVEMENTS Approved RENTON Approved by: �u+- Date: -'� ° PETER EVANS m Approved Date: ""J°R Arm Planning /Building /Public Works Dept. ESC DETAILS oC1.10C PP Y IE B. SCHROEDER. PE r wn ac nm, com�sn, ®xia crx can.,,rca "n, uc. MRea R...,.d. Approved b: Date: N0. REVISION BY DATE APPR w"'^* APPROVED s AOCaa«orr sEEn 7 0r40 c,T*.) , ,2_-> -3d-P 1AHNINININAT y d v H � K n �a N W