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Home My WebLink AboutTED4003194.3n n Q- ~ g W (-D Q zV) Q I O0 �w U)O :2i W cn n, O w� o Q QD v) w z W � U O Q o z � Q Q O U n- O p o 3:< Q r /� rw �w n cE � m � E E Q'N a Z> J i = U U Z_ O Zo NZ0 = Z co� o U U P,o< z cn a -V) N m m m s� am w zaiy N 0 O U Q m m a CD Q o m m 0 U w cl- o z V) O =cn _; .D w� m U 0 w N 0� SURFACE WATER NOTES AND SPECIFICATIONS SHORT PLAT OF CAMAS ESTATES ILUA04o0391 A PORTION OF THE NE 1/4 OF THE NE 1/4 OF SEC. 8, TWP 23N., RGE, 5E., W.M. CITY OF RENTON, KING COUNTY, WASHINGTON 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON PLAN REVIEWER. 2. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE "1994 STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION" PREPARED BY W.S.D.O.T., AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS. 3. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS WHICH ARE ON FILE IN THE DEPARTMENT OF PUBLIC WORKS. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS OR SURFACE WATER UTILITY. 4. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 5. DATUM SHALL BE NAVD 88. UNLESS OTHERWISE APPROVED BY CITY OF RENTON DEPARTMENT OF PUBLIC WORKS. REFERENCE BENCHMARK AND ELEVATION ARE NOTED ON THE PLANS. 6. ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING AND BUILDING CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTAINED UNTIL CONSTRUCTION IS COMPLETED AND THE POTENTIAL FOR ON -SITE EROSION HAS PASSED. 7. ALL RETENTION/DETENTION FACILITIES MUST BE INSTALLED AND IN OPERATION PRIOR TO OR IN CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE DEPARTMENT OF PUBLIC WORKS, SURFACE WATER UTILITY. 8. GRASS SEED MAY BE APPLIED BY HYDROSEEDING. THE GRASS SEED MIXTURE, OTHER THAN CITY OF RENTON APPROVED STANDARD MIXES, SHALL BE SUBMITTED BY A LANDSCAPE ARCHITECT AND APPROVED BY THE DEPARTMENT OF PUBLIC WORKS, SURFACE WATER UTILITY. 9. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH SECTION 7-02.3(1) OF THE CURRENT STATE OF WASHINGTON STANDARD SPECIFICATION FOR ROAD AND BRIDGE CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE FOUNDATION MATERIAL AS WELL AS PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE SUPPORTED ON A UNIFORMLY DENSE UNYIELDING BASE. ALL PIPE BEDDING SHALL BE APWA CLASS "C", WITH THE EXCEPTION OF PVC PIPE. ALL TRENCH BACKFILL SHALL BE COMPACTED TO MINIMUM 95% FOR PAVEMENT AND STRUCTURAL FILL AND 90% OTHERWISE PER ASTM D-1557-70. PEA GRAVEL BEDDING SHALL BE 6" OVER AND UNDER P.V.C. PIPE. 10. GALVANIZED STEEL PIPE AND ALUMINIZED STEEL PIPE FOR ALL DRAINAGE FACILITIES SHALL HAVE ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE. 11. STRUCTURES SHALL NOT BE PERMITTED WITHIN 10 FEET OF THE SPRING LINE OF ANY STORM DRAINAGE PIPE, OR 15 FEET FROM THE TOP OF ANY CHANNEL BANK 12. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL. 13. OPEN CUT ROAD CROSSINGS THROUGH EXISTING PUBLIC RIGHT OF WAY WILL NOT BE ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF RENTON ADMINISTRATOR, DEPARTMENT OF PLANNING/BUILDING/PUBLIC WORKS. 14. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY ROCK PLACED TO A DEPTH OF 1 FOOT AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4"-8"/40%-70% PASSING; 2"4' ROCK/30%-40% PASSING; AND -2" ROCK/10%-20% PASSING. 15. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS APPROVED BY THE DEPARTMENT OF DEVELOPMENT SERVICES, PLAN REVIEWER OR SURFACE WATER UTILITY. AN ACCURATELY DIMENSIONED CERTIFIED AS -BUILT DRAWING OF THIS DRAINAGE SYSTEM WILL BE SUBMITTED TO THE CITY OF RENTON UPON COMPLETION. 16. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMIT BY THE CITY OF RENTON DOES NOT RELIEVE THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY CONNECTED WITH STORM SURFACE WATER DISPOSITION. FURTHER, THE CITY OF RENTON DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND MAINTENANCE OF THE SYSTEM PROVIDED DURING CONSTRUCTION. 17. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT THE LIFT, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVERED BY THE CONTRACT. ANY WORK WITHIN THE TRAVELED RIGHT OF WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE AN APPROVED TRAFFIC CONTROL PLAN BY THE TRAFFIC ENGINEERING DIVISION OF THE DEPARTMENT OF PUBLIC WORKS. ALL SECTIONS OF THE W.S.D.O.T. STANDARD SPECIFICATIONS 1-07-23, TRAFFIC CONTROL, SHALL APPLY. 18. SPECIAL DRAINAGE MEASURES WILL BE REQUIRED IF THE PROJECT LOCATION IS WITHIN THE AQUIFER PROTECTION AREA (APA). BENCHMARK BASIS OF ELEVATION CITY OF RENTON MON. #57 NW CORNER SEC. 8, T23N, R5E, W.M. ELEVATION=99.496 METERS=326.42 FEET N 6510.450 CALC. = N56830.947 CITY OF RENTON E 66068.649 CALC. = E398127.629 CITY OF RENTON 4,0 SAW CUT 1/2" DRAIN SLOTS IN THE 48"0 TANK @ 12" OC. 48"0 GALVANIZED CMP - W/TREATMENT 1 ASPHALT COATED OR BETTER 48"LVANIZED CMP"' /Torn r"ArnIT ASPHALT COATED OR BI NON -WOVEN GEOTEXTILE 12' MIN. SAW CUT 1 2" DRAIN SLOTS I> > DE IN THE 48"0 TANK @ 12' Sv-1 6F OC. AD NoTy/ S�oT CB#1, TYPE 2, 54"0 2 LF 36"0 CMP @ 0.0% 2� DRAIN SLOT DETAIL NTS 271.00 269.00 266.00 -00T 5' MIN. INFILTRATION TANK DETAIL NTS CB#2, TYPE 2, 72"0 8' MIN. L� 32 LF 48"0 CMP TREATMENT 1 ASPHALT COATED S=0.0% ALL CMP SURFACES SHALL HAVE TREATMENT 1 ASPHALT COATING OR BETTER. PLAN VIEW 5' MIN. F INFILTRATION PIPE SECTION SEE DETAIL THIS SHEET. 9 LF 36"0 CMP @ 0.0% BOTTOM ELEV=267.00- U E=267.50 CB#1, TYPE 2, 54"0 A STA: 2+24.81, 16.00, LT SOLID LOCKING LID RIM= 274.64 IE= 267.50 36" IN (E) VERTICAL DATUM NAVD-88 NORTH AMERICAN VERTICAL DATAM OF 1988 PER KING COUNTY DEPARTMENT OF PUBLIC WORKS UTILITY CROSSINGS SEE UTILITY CROSSINGS ON COMPOSITE UTILITY PLAN SHEET C14. SLOPE=0.00% BOTTOM ELEV OF %" TO 1-%" WASH ROCK ELEV=266.00 MAXIMUM NOTE: INFILTRATION TANK SHALL BE A MINIMUM OF 20 FEET FROM THE PROPERTY LINE AND MINIMUM OF 50 FEET FROM THE TOP OF STEEP SLOPE, PROFILE VIEW RETENTION PIPE AND WATER QUALITY SYSTEM NTS TOP=269.75 269.00 267.00 265.00 E=264.00 2 LF 36"0 CMP @ 0.0% IE=267.50 CB#2, TYPE 2. 72"0 STA: 2+74.13, 16.00, LT SOLID LOCKING LID RIM= 273.72 IE= 267.50 36" IN (W) IE= 266.25 36" IN (E) IE= 264.00 8" IN (E) SEE DETAIL SHT C4 CALL 48 HOURS BEFORE YOU DIG 1-800-424-5555 2' AP"M ('Al \/AK117Cn rKAD W/TDCAT"ACNIT 1 8'-2"x5'-9", 6x2 CORRIGATIONS WATER QUALITY ARCH PIPE NTS 3 LF 8% PVC ROOF DRAIN CB#3, TYPE 2, 54"0 A-� 4� CF 12» -- - @2.13gQ N-12 TO CB#4 3199 0,3 WATER QUALITY ARCH PIPE m 23 LF 8'-21)x5-9", 6x2 CORRIGATIONS CMP TYPE 1 ASPHALT COATING 2 LF-360 CMP @ EACH END S=0.0% TOP OF WQ ELEV=268.00 (OVERFLOW) BOTTOM ELEV=264.00 'IE=266.25 2 LF 8"0 PVC DRAIN @ 0.0% IE=264.00 PIVOTING SHEAR GATE 8"0 SEE DETAIL SHT C4 N.6C.� \ OFWAS 3222�3q IS `SIGNAL � EXPIRES 09/20/08 o pfl oo,. SCANNED APR Z Z zeb�5 2' 47 LF 12"0 N-12 @ 2.13% 0 TO CB#4 E=267.50 L CB#3, TYPE 2, 54"0 A E-266.25 STA: 3+07.34, 16.00, LT SOLID LOCKING LID RIM= 272.82 IE= 266.25 36" OUT (W) IE= 267.50 12" IN (E) IE= 267.50 8" IN (N) ScxwE�, & Alki!d Assocum, Pi,Lc CIVIL ENGINEERING & PROJECT MANAGEMENT 1945 SOUTH 375TH STREET Bus: (253) 815-1700 FEDERAL WAY, WA 98003 Fax.• (253) 815-1701 bsch weikl@comcost. net