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HomeMy WebLinkAboutR-372337TBLOCK_COR Uj z U w 3 0 w a_ w 0 O U w J LL Z W D cr Q 0 oC W m J VeL M11T. u ,_PTH EAR TH OR GRASS LINED DEPTH ROCK LINED 1 COMPA C T QUARRY SPALLS NOTES 1 • EARTH OR GRASS LINED DITCHES SHALL HAVE SLOPES OF 6% OR LESS AND A MAXIMUM FLOW VELOCITY OF 5FPS. 2. ROCK CHECK DAMS SHALL BE USED IN EARTH OR GRASS LINED DITCHES FOR SLOPES GREATER THAN 3% 3. ROCK LINED DITCHES SHALL BE USED WHEN SLOPES EXCEED 6% 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 CHANNEL IS RESTORED TO ITS DESIGN CAPACITY. 2. IF THE CHANNEL CAPACITY IS INSUFFICIENT FOR THE DESIGN STORM, IT MUST BE 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 /RpP� o Q o c R = 25' MIN cEO7ExnLf TYPE I QUARRY SPACES EDGE OF EXISTING ROAD SURFA CE `50 %04 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 W17H THE SPECI FI CA TIONS. 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 /T 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 IMMEDIA TEL Y. 5. IF VEHICLES ARE ENTERING OR EXITING THE SITE 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 Approved by: Approved by: Approved by: Copyright © 2014 CPH Consultants, LLC. All Rights Reserved. Approved by : CITY OF RENTON Date: Date: Date: Date: A PORTION OF THE SE 1/4 OF SECTION 14 TOWNSHIP 23 N, RANGE 5 E, W.M. FILTER FABRIC MA TERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE. 2 x2 x14 ga. WIRE FABRIC OR EQUIV. If 6" 2x2 x14 ga. WIRE TI 77 I I PRO VIDE 3/4" - 1.5" WASHED GRAVEL BACKFILL OR NATIVE I I Cv SOIL IN TRENCH & ON BOTH I I [SIDES OF FILTER FENCE e 1 1 FABRIC ON THE SURFACE. Ln :'' 1. 1-1. 1 1' -, I I BOTTOM `D I AMIRAFI 10OX OR EQUAL FILTER BURY BOTT0 I I MATERIAL IN 8 102" TRENCH. N FABRIC MATERIAL IL 6' MAX. I I I I 2x4" WOOD POST STANDARD OR u U 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, WITH 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 EXCA VA TED, ROUGHLY 8 INCHES WIDE 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 1S STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF STANDARD NOTE E. APPLYING. G. THE TRENCH SHALL BE BACKFILLED WITH 3Y4 -INCH MINIMUM 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 PERMANENTLY STABILIZED. I. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIA TEL Y AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIA TEL Y. 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. J. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND AC11NG AS A BARRIER TO FLOW AND THEN CAUSING CHANNEUZA110N OF FLOWS PARALLEL TO THE FENCE IF THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT. 4. SEDIMENT MUST BE REMOVED WHEN THE SEDIMENT IS 6 INCHES HIGH. 5. IF THE FILTER FABRIC (GEOTEXI)LE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. TYPICAL SILT FENCE NOT TO SCALE CONTINUOUS ORANGE CONSTRUCTION FENCE, TENSAR OR EQUAL �METAL FENCE POSTS-1 10' MAX. NOTE 1. SEE ESC AND CLEARING PLANS AND TYPICAL CLEARING LIMITS DETAIL FOR FENCE LOCATION CONSTRUCTION FENCING NOT TO SCALE 1 CONSTRUCTION PERMIT APPROVAL JBS 05/01/14 JBS" 2 AS- GUILTS GG 03/16/15 JBS AMIE B. SCHROEDER Dalft PETER EVANS CHECHM AMIE B. SCHROEDER NO. REVISION BY DATE APPR 1 �pROVED N/A 0lIE Npi AT Fu. U*E FWtoWWCH W.M1 Pim AL WO ,��ft, DATUM APPROX. LIMIT OF GRADING WORK AREA 12" MAX., UNLESS NOTED - low OTHERWISE ON PLAN SITE /ROADWAY IMPROVEMENTS VARIES PER PLAN TEMP. DI TCH OR SWALE, PER PLAN ROUGH OR FINISHED GRADE MPx I 2�1 6" MAX. --i 2•� I�qk x FINISHED SLOPE, PER PLAN FILTER FABRIC SILT FENCE AT EXIST. GRADE DOWNSLOPE OF DISTURBED AREAS TYPICAL CLEARING LIMITS NOT TO SCALE 2 CONSTRUCTION FENCING (ORANGE PLASTIC) AT EXIST. GRADE UPSLOPE OF DISTURBED AREAS EXIST. GRADE CLEARING UMI IS unc un ufrm arm u►►v u L= THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVA LION TYPE 11 QUARRY SPALLS MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DI TCH CROSS sECnoN ROCK CHECK DAM NOT TO SCALE R- 312331 QUARRY SPALLS 01 _F 4' MIN. — ROCK CHECK DAM AS • r �• 1 1 ir Z, ;, • CALL BEFORE YOU DIG 148)0 - 424 -5555 CP H CONSULTANTS Site Plannrg • QW Enaneenng Land Use Consu" • Project Managment 733 7th ll mue, Suite 100 1 Kirk". WA 98M Phone: (425) 285.2390 1 FAX: (425) 285-2389 www.cphconsuItonts.com LIBERTY GARDENS 02/21/1 ��► CITY OF ^ ROADWAY GRADING, DRAINAGE AND SANITARY SEWER IMPROVEMENTS RENTON Planning /Building /Public Works Dept. ESC DETAILS �ci-100 r `Z =:� Z t C �7 �T -Z m T m i > s D T T F- I� z 44 � r. - r r � -z z 9 > 0 n D Z G1 2 C ic m n I I I D I � v >= :s Z Z - N � I W0 D T v :s Z