Loading...
20130320 Grading Plans 12042013vluitvi IT MHr RIVER RUN APA19TMENTS SHEET INDEX NE 1/4, SE 114, SEC24, TWN.17 ": , RNG 1 E., W.M. F TP1 1 OF 3 TE.S.C. & GRADING COVER TP2 2 OF 3 TE.S.C. - SPECIFICATIONS TP3 3 OF 3 T.E.S.C. - DETAILS CONSTRUCTION NOTES (2 ) CONSTRUCT TEMPORARY CONSTRUCTION ENTRANCE 30'W x 501 PER SHEETS TP2 & TP3. O INSTALL TEMPORARY MIRAFI SILT FENCE AS SHOWN & PER SHEETS TP2 & TP3. O INSTALL CB INLET PROTECTION & TEMPORARY SEDIMENT CONTROL PER DETAIL ON SHEET TP3. O CONSTRUCT CONTRACTOR STORAGE, WASH DOWN, STAGING, FUELING & MAINTENANCE AREA. REPORT FUEL & LUBRICANT SPILLS TO DIVISION OF EMERGENCY MANAGEMENT (1- 800- 258 - 5990). 5Q EXISTING PERIMETER FENCE TO BE PROTECTED THROUGHOUT CONSTRUCTION. © EXISTING UTILITY TO BE RELOCATED. O7 EXISTING UTILITY TO BE PROTECTED THROUGHOUT CONSTRUCTION. Q CONTRACTOR TO RELOCATE/ REPLACE EXISTING STREET TREE. CONTRACTOR TO COORDINATE WORK WITH CITY OF YELM. LEGEND CLEARING LIMITS i. EXISTING CONTOURS --- - - - - -- 440-- - - - - -- PROPOSED CONTOURS TPO SOIL TEST PIT XXXX���� (SEE GEOTECHNICAL REPORT DATED 09 \23 \13 LOCATED IN THE STORM DRAINAGE REPORT FOR ADDITIONAL INFORMATION). MIRAFI SILT FENCE D O INLET PROTECTION O3 NOTES: 1. ALL FILL SHALL BE CLEAN EARTHEN MATERIAL ONLY, WITH NO CONCRETE, GARBAGE, SOLID WASTE OR ANY OTHER UNACCEPTABLE MASS. 2. ALL ASBESTOS ENCOUNTERED MUST BE REMOVED AND DISPOSED OF IN ACCORDANCE WITH PUGET SOUND AIR POLLUTION CONTROL AGENCY ( PSAPCA ) AND TACOMA - PIERCE COUNTY HEALTH DEPARTMENT REGULATIONS. 3. ALL DEMOLITION MATERIAL MUST GO TO A LICENSED SOLID WASTE HANDLING OR DISPOSAL FACILITY. 4. ALL SEPTIC TANKS SHALL BE PUMPED BY A CERTIFIED SEPTIC HAULER, FILLED WITH SOIL AND A DECOMMISSIONING APPLICATION COMPLETED PER YELM- MURSTON COUNTY HEALTH DEPARTMENT REQUIREMENTS. 5. CONTRACTOR SHALL OBTAIN DEMOLITION PERMIT AS REQUIRED PRIOR TO ANY DEMOLITION OR STRUCTURE REMOVAL. 6. ALL SLOPES SHALL MAINTAIN MINIMUM SETBACKS IN ACCORDANCE WITH THE GRADING NOTES ON SHEET TP2. 7. THE CONTRACTOR SHALL PLACE THE STRUCTURAL FILL MATERIAL IN EIGHT INCH (8 ") LOOSE LIFTS CONDITIONED TO THE PROPER MOISTURE CONTENT FOR COMPACTION AND COMPACTED TO AT LEAST NINETY -FIVE (95%) OF THE MAXIMUM DRY DENSITY, AS DETERMINED BY THE ASTM COMPACTION TEST PROCEDURE D- 1557 -70. 8. THE OWNER'S RETAINED GEOTECHNICAL ENGINEER SHALL TEST ALL FILL MATERIAL & OBTAIN SUFFICIENT COMPACTION TESTS TO VERIFY SOIL STABILITY. 9. EROSION CONTROL MEASURES OTHER THAN THOSE SPECIFIED MAY BE NEEDED TO PREVENT MIGRATION OF SEDIMENT. SEE SHEETS TP2 & TP3 FOR ADDITIONAL MEASURES. 10. CONTRACTOR TO HAVE EQUIPMENT AND MATERIALS LE.: STRAW, 12" & 18" CMP , QUARRY SPALLS, TEMP RISER STRUCTURES, ETC. ON -SITE DURING CONSTRUCTION FOR EMERGENCY SITUATIONS. CONTRACTOR TO DEVELOP PLAN OF ACTION FOR EROSION MEASURES PRIOR TO STARTING CONSTRUCTION. 11. PRIOR TO START OF CONSTRUCTION, A NPOES PERMIT SHALL BE OBTAINED FROM THE DEPARTMENT OF ECOLOGY IF NEEDED. 12. PRIOR TO START OF CONSTRUCTION, A FOREST PRACTICE PERMIT SHALL BE OBTAINED FROM THE DEPARTMENT OF NATURAL RESOURCES, IF NEEDED. 13. TO LIMIT IMPACTS TO NEIGHBORING PROPERTIES, DUST CONTROL WILL BE REQUIRED. SCALE: 1 " =20 0 10 20 40 NOTE: CALL 1- 800 - 424 -5555 BEFORE YOU DIG. APPROVED FOR CONSTRUCTION BY: _DATE: Director ofPebhi Worka APPROVAL EXPIRES: NOTE ESC LEAD TO BE APPOINTED BY CONTRACTOR AT TIME OF PRE - CONSTRUCTION MEETING & PROOF OF CERTIFICATION WILL BE PROVIDED. VERTICAL DATUM THURSTON COUNTY NGVD 29 BM: 1252 CASED CONCRETE MONUMENT WITH BRASS CAP ® INTERSECTION OF YELM AVE, & TAHOMA BLVD. ELEV. 347.21 CONTOUR INTERVAL-2' TOPOGRAPHY PREPARED BY LARSON & ASSOCIATES CONSTRUCTION SEQUENCE 7. CALL CITY OF YELM FOR PRE - CONSTRUCTION MEETING, 2. CLEARLY FLAG ALL LIMITS OF CLEARING AND GRADING PER APPROVED PLANS. 3. INSTALL TEMPORARY CONSTRUCTION ENTRANCE AS SHOWN. 4. INSTALL TEMPORARY MIRAFI FILTER FENCES AS SHOWN. 5. REMOVE EXISTING STRUCTURES AS INDICATED ON THE T.E.S.C. PLAN. - ACQUIRE APPROPRIATE DEMOLITION PERMITS. 6. CLEAR AND GRADE SITE PER APPROVED PLANS. 7. ANY VEGETATION OR OTHER MATERIALS TAKEN OFF SITE SHALL BE HAULED TO APPROVED DISPOSAL SITE. 8. INSTALL UTILITIES HE SANITARY, WATER, ETC.) 9. CONSTRUCT PAVED PARKING LOT /ACCESS AND STORM DRAIN SYSTEM PER APPROVED PLANS. 10. PROVIDE C.B. PROTECTION UNTIL ROAD & STORM DRAIN SYSTEM IS COMPLETED AND ALL EXPOSED SLOPES ARE SEEDED & STABILIZED FOR EROSION & SEDIMENTATION. 11. NOTE: THE BUILDING CONTRACTOR IS RESPONSIBLE FOR MAINTENANCE OF STORM SYSTEM DURING BUILDING AND LANDSCAPE CONSTRUCTION. 12. HYDRO SEED AND /OR MULCH SLOPES AND OTHER EXPOSED AREAS IMMEDIATELY AFTER GRADING IS COMPLETED AS OUTLINED IN EROSION CONTROL NOTES ". 13. CLEAN OUT AND TEST ALL STORM DRAIN FACILITIES, 14. INSPECT AND MAINTAIN ALL EROSION CONTROL FACILITIES AT REGULAR INTERVALS & COMPLETE REQUIRED REPORT. CLEAN AS REQUIRED UNTIL RISK OF SEDIMENTATION HAS PASSED. 75. UNTIL ALL PROJECTS WHICH PRODUCE SURFACE RUNOFF ARE COMPLETED AND ALL EXPOSED GROUND SURFACES ARE STABILIZED BY VEGETATION OR LANDSCAPING, PONDS MAY NOT BE OPERATED AND NO SURFACE RUNOFF MAY BE PERMITTED TO ENTER THE STORM SYSTEM. INSPECTION SCHEDULE I. CONSTRUCTION ENTRANCE SHALL BE INSPECTED WEEKLY & CLEANED AS NEEDED OR NEW SPALLS ADDED AS NEEDED TO MAINTAIN A ROUGH SURFACE. 2. THE EXISTING ACCESS ROUTES INTO THE PROJECT SITE SHALL BE INSPECTED EVERY 2 DAYS & SWEPT OR CLEANED ON A WEEKLY BASIS OR MORE FREQUENTLY IF NEEDED. 3. ALL CUT & FILL SIDE SLOPES SHALL BE INSPECTED EVERY 2 DAYS AND /OR AFTER EVERY STORM EVENT TO REPAIR ANY EROSION OR SLOPE SCOURING. 4. SILT FENCES SHALL BE INSPECTED EVERY 4 DAYS. 5. INSPECT INLET PROTECTION ON A WEEKLY BASIS AND AFTER EVERY MAJOR STORM EVENT. BLOCK II 8115 11 0 N � I I U Z O t\ O O O z IL c) O� UM obi m W ZZIo� O m � } 2 V, v n V aM � N m O V ca m a� C a c U Q Z b O O V Z O V (/V I� J W DATE + N 17- 25 -13� ° U DRAWING NO TP1 8715BASE - LIFE T _L OF _I w O p W U 3 U W K Z p O U t\ O O O z IL c) O� UM obi m W ZZIo� O m � } 2 V, v n V aM � N m O V ca m a� C a c U Q Z b O O V Z O V (/V I� J W DATE + N 17- 25 -13� ° U DRAWING NO TP1 8715BASE - LIFE T _L OF _I EROSION CONTROL NOTES I. ON -SITE EROSION CONTROL MEASURES SHALL BE THE RESPONSIBILITY OF THE DEVELOPER. ANY PROBLEMS OCCURRING BEFORE FINAL ACCEPTANCE OF THE STORM SYSTEM BY THE MUNICIPALITY SHALL BE CORRECTED BY THE APPLICANT AND /OR THE CONTRACTOR. 2. IN CASE EROSION OR SEDIMENTATION OCCURS TO ADJACENT PROPERTY, ALL CONSTRUCTION WORK WITHIN THE DEVELOPMENT THAT WILL AGGRAVATE THE SITUATION MUST CEASE AND THE APPLICANT /CONTRACTOR SHALL IMMEDIATELY COMMENCE RESTORATION OR MITIGATION MEASURES. RESTORATION ACTIVITY SHALL CONTINUE UNTIL SUCH TIME AS THE PROBLEM IS RECTIFIED. 3. ALL EROSION AND SEDIMENTATION CONTROL DEVICES SHOWN ON THIS DRAWING SHALL BE INSTALLED PRIOR TO OR AT THE FIRST STAGE OF SITE PREPARATION. 4. SHOULD THE TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES AS SHOWN ON THIS DRAWING NOT PROVE ADEQUATE TO CONTROL EROSION AND SEDIMENTATION, THE APPLICANT /CONTRACTOR SHALL INSTALL ADDITIONAL FACILITIES AS NECESSARY TO PROTECT ADJACENT PROPERTIES, SENSITIVE AREAS, NATURAL WATER COURSES, AND /OR STORM DRAINAGE SYSTEMS. 5. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION OR EXPERIENCED LAND DISTURBING 'ITIES AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD EX( LEDING THE LISTED CRITERIA, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS PLANTING, OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN QUESTION. GRASS SEEDING ALONE WILL BE ACCEPTABLE ONL, DURING THE MONTHS OF APRIL THROUGH SEPTEMBER, INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS IN THE INTEREST OF THE APPLICANT /CONTRACTOR, BUT MUST BE AUGMENTED WITH MULCHING, NETTING, OR OTHER TREATMENT. A.DRY SEASON(MAY 1 TO SEPTEMBER 30): LIMITS OF CLEARING EXTENDED TO ONLY ENOUGH LAND AS CAN RECEIVE APPROPRIATE PROTEC77VE COVER OR STABILIZATION BY NO LATER THAN SEPTEMBER 30. B. WET SEASON(OCTOBER 1 TO APRIL 30) L ALL CLEARED OR DISTURBED AREAS WILL RECEIVE APPROPRIATE COVER OR BE OTHERWISE STABILIZED WITHIN 5 DAYS IF NOT BEING ACTIVELY WORKED. 2. IF A MAJOR STORM EVENT 15 PREDICTED, THE CLEARING OF LAND SHALL BE LIMITED TO ONLY AS MUCH LAND AREA AS CAN BE COVERED OR STABILIZED WITHIN 24 HOURS. 6. THE PROJECT ENGINEER OR PROJECT SURVEYOR WILL BE RESPONSIBLE FOR FIELD LOCATING THE CLEARING LIMITS AND ESTABLISHING THOSE BOUNDARIES WITH BRIGHT COLORED FLAGGING. THE CONTRACTOR SHALL CLEAR TO THE LIMITS AS ESTABLISHED ON THIS PLAN AND AS FLAGGED IN THE FIELD. 7. THE COUNTY SHALL BE RESPONSIBLE FOR THE INSPECTION AND ACCEPTANCE OF ALL CLEARING AND GRADING WORK AND EROSION AND SEDIMENTATION CONTROL FACILITIES. THE APPLICANT AND /OR CONTRACTOR SHALL NOTIFY THE COUNTY FORTY - EIGHT HOURS IN ADVANCE OF EACH REQUIRED EROSION AND SEDIMENT CONTROL INSPECTION. INSPECTION NO. 1 - INSTALLA770N OF EROSION CONTROL FACILITIES /PRIOR TO CLEARING. INSPECTION NO. 2 - COMPLETION OF CLEARING. INSPECTION NO. 3 - UPON COMPLETION OF EXCAVATION, FILLING, AND EARTHWORK. INSPECTIO N NO. 4 - CC "°LETION OF PROJECT. INSPECTION N0. 5 - AS NEEDED TO DETERMINE COMPLIANCE WITH APPROVED PLANS AND /OR ADVANCE NOTICE.) SPECIFICATIONS. (DOES NOT REQUIRE ) If ALL WORK ASSOCIATED WITH STABILIZING THE DISTURBED AREAS SHALL BE IN ACCORDANCE WITH THE PIERCE COUNTY STORMWATER MANAGEMENT MANUAL. 9. ALL NECESSARY FACILITIES SHALL BE MAINTAINED ON SITE TO PREVENT DEBRIS, DUST, AND MUD FROM ACCUMULATING ON THE PUBLIC RIGHT -OF -WAY GRADING NOTES 1. THE CONTRACTOR SHALL STRIP THE SURFACE ORGANIC MATERIAL WITHIN THE BUILDING AND LOT AREAS TO BE FILLED AND DISPOSE OF THE UNSUITABLE MATERIAL AS DIRECTED BY THE OWNER. 2. PRIOR TO THE PLACEMENT OF STRUCTURAL FILL OR BASE ROCK FOR THE BUILDING SITES, PAVED AREAS AND CONCRETE DATWORK CORRIDORS, THE CONTRACTORS SHALL SCARIFY THE AREAS TO BE FILLED OR ROCKED 70 A DEPTH OF 6 INCHES (6 ") MINIMUM. ONCE SCARIFIED, THE SOILS SHALL BE CONDITIONED TO THE PROPER MOISTURE CONTENT FOR COMPACTION AND COMPACTED TO AT LEAST NINETY -FIVE (95X) OF THE MAXIMUM DRY DENSITY, AS DETERMINED BY THE AST" COMPACTION TEST PROCEDURE D- 1557 -70, VERIFY WITH SOILS ENGINEERS" RECOMMENDATIONS. FILL MATERIAL IN EIGHT INCH B LOOSE LIFTS CONDITIONED 3. THE CONTRACTOR SHALL PLACE THE STRUCTURAL ( ) TO THE PROPER MOISTURE CONTENT FOR COMPACTION AND COMPACTED TO LEAST NINETY -FIVE X) OF THE MAXIMUM DRY DENSITY, AS DETERMINED BY THE ASTM COMPACTION TEST T PROCEDURE D- 1557 -7070. 4. DETRIMENTAL AMOUNTS OF ORGANIC MATERIAL SHALL NOT BE PERMITTED IN FILLS. ALL IMPORTED MATERIAL SHALL BE IMPORTED GRAVEL "CLASS B" BANKRUN OR BETTER. 5. IXCAVA77ON STAACARO5: Cur SLOPES. SLOPES SHALL BE NO STEEPER THAN IS SAFE FOR THE INTENDED USE AND SHALL NOT BE STEEPER THAN 2 HORIZONTAL TO 1 VERTICAL, OR AS RECOMMENDED BY A SOILS ENGINEER. THE CATCH POINT OF THE TOP OF THE SLOPE SHALL BE SETBACK FROM THE SITE BOUNDARY LINE IN ACCORDANCE WITH THE FOLLOWING TABLE UNLESS A RETAINING WALL IS DESIGNED BY THE ENGINEER AND CONSTRUCTED FOR THE PROJECT. CUT DEPTH SETBACK DISTANCE UNDER 5 FEET 2 FEET 5 -20 FEET HEIGHT / 2 OVER 20 FEET 10 FEET 6. FILL SMAQW0S: 1) GENERAL: FILLS WHICH ARE INTENDED FOR BUILDING SITES SHALL BE CONSTRUCTED IN CONFORMANCE WITH THE REQUIREMENTS OF THE LATEST EDITION OF THE U.B.C., AS ADOPTED BY PIERCE COUNTY, AND AN ASSIGNMENT OF ALLOWABLE SOIL - BEARING PRESSURES WILL BE UNDER THE JURISDICTION OF THE PIERCE COUNTY BUILDING OFFICIAL IN ACCORDANCE WITH THE U.B.C. 2) FILL LOCATION: SLOPES SHALL BE NO STEEPER THAN IS SAFE FOR THE INTENDED USE AND SHALL NOT BE STEEPER THAN 1 -112 HORIZONTAL TO 1 VERTICAL, OR AS RECOMMENDED BY A SOILS ENGINEER. FILL SITES MUST BE APPROVED BY THE ENGINEER AS SUITABLE LOCATIONS FOR THE PROPOSED FILL. 3) PREPARATION OF GROUND: THE GROUND SURFACE FOR FILLS OVER FIVE FEET IN HEIGHT SHALL BE PREPARED BY REMOVING VEGETATION, NONCOMPLYING FILL, TOPSOIL. AND OTHER UNSUITABLE MATERIALS; SCARIFYING TO PROVIDE A BOND WITH THE NEW FILL; AND, WHERE EXISTING SLOPES ARE STEEPER THAN 5 HORIZONTAL TO 1 VERTICAL, BY BENCHING INTO COMPETENT MATERIAL AS DETERMINED BY THE ENGINEER. THE BENCH UNDER THE TOE OF A FILL ON A SLOPE STEEPER ,IAN 5 HORIZONTAL TO 1 VERTICAL SHALL BE AT LEAST 10 FEET WIDE, OR AS RECOMMENDED BY A SOILS ENGINEER. 4) FILL MATERIAL: EXCEPT AS PERMITTED BY THE COUNTY, NO MATERIAL OTHER THAN EARTH MATERIAL SHALL BE BURIED OR PLACED IN FILLS. PLACEMENT OF OTHER THAN EARTH - MATERIAL IS REGULATED BY STATE STATUTES OR FEDERAL LAWS, AND ADDITIONAL PERMITS MAY BE REQUIRED. 5) SLOPE STABILITY.. FILLS SHALL BE CONSTRUCTED USING EARTH MATERIALS, COMPACTION METHODS, AND CONSTRUCTION TECHNIQUES SO THAT STABLE FILLS ARE CREATED. 6) SETBACK FROM PROPERTY LINES: THE TOE OR CATCH POINT OF FILL SLOPES SHALL BE SET BACK FROM THE SITE BOUNDARY LINE IN ACCORDANCE 417TH THE FOLLOWING TABLE UNLESS A RETAINING WALL IS DESIGNED BY THE ENGINEER AND CONSTRUCTED FOR THE PROJECT: FILL DEPTH SETBACK DISTANCE UNDER 5 FEET 2 FEET 5 - 40 FEET HEIGHT OF FILL 12 OVER 40 FEET 20 FEET RIVER RUN APARTMENTS NE 114, SE 1/4, SEC24, TWN.17 N., RNG 1 E., W.M. SILT FENCE NOTES EROSION CONTROL BLANKET NOTES 1. FILTER FABRIC SHALL L3E PURCHASED IN A CONTINUOUS ROLL AND 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 OVERILAP, AND SECURELY FASTENED AT BOTH ENDS TO POSTS. 2. POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MIINIMUM OF 30 INCHES). J. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 8 INCHES WIDE AND 12 INCHES DEEP ALONG THE LINE OF POSTS AND UPSLOPE FROM THE BARRIER. THIS TRENCH SHALL BE BACKFILLED WITH WASHED GRAVEL. 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 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 24 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 NC)T EXTEND MORE THAN 24 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTE -R FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. WHEN EXTRA- STRENGTF{ FILTER FABRIC AND CLOSER POST SPACING IS USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF ABOVIE NOTES APPLYING. 7. FILTER FABRIC FENCES SHALL NOT BE REMOVED BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY S;T.ABILIZED. B. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY'_ 9. SILT FENCES WILL BE INSTALLED PARALLEL TO ANY SLOPE CONTOURS. 10. CONTRIBUTING LENGTH TO FENCE WILL NOT BE GREATER THAN 100 FEET. 11. DO NOT INSTALL BELIOW AN OUTLET PIPE OR WEIR. 12. INSTALL DOWNSLOPE XOF EXPOSED AREAS. 13. DO NOT DRIVE OVER (OR FILL OVER SILT FENCES. INLET PROTECTION NOTES 1. PLACE CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A SINGLE ROW AROUND THE PERIMETER OF THE INLET, SO THAT THE OPEN END FACE OUTWARD, NOT UPWARD., THE ENDS OF ADJACENT BLOCKS SHALL ABUT. THE HEIGHT OF THE BARRIER CAN BE VARIED, DEPENDING ON DESIGN NEEDS, BY STACKING COMBINATIONS OF BLOCKS THAT ARE 4 INCHES, AND 12 INCHES WIDE. THE ROW OF BLOCKS SHALL BE AT LEAST 12 INCHES BUT NO GREATER THAN 24 INCHES HIGH. 2. PLACE WIRE MESH OVAER THE OUTSIDE VERTICAL FACE (OPEN END) OF THE CONCRETE BLOCKS TO F-REVENT STONE FROM BEING WASHED THROUGH THE BLOCKS. USE HARDWARE CLOTH, OR COMPARABLE WIRE MESH WITH 112 -INCH OPENINGS. 3. PILE STONE AGAINST TL4E WIRE MESH TO THE TOP OF THE BLOCKS. USE 314 -INCH TO 3 -INCH GRAVEL. 4. PLACE WIRE MESH OVEFR THE DROP INLET SO THAT THE WIRE EXTENDS A MINIMUM OF 1 FOOT BEYOND EAICH SIDE OF THE INLET STRUCTURE. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1/2 -INCH OPENINGS. IF MORE THAN ONE STRIP OF MESH IS NECESSARY, OVERLAP THE STRIPS. PLACE FILTER FABRIC OVER WIRE MESH. 5. PLACE 314 INCH GRAVEL OVER THE WIRE MESH. THE DEPTH OF STONE SHALL BE AT LEAST 12 INCHES OVER THE ENTIRE INLET OPENING. EXTEND THE STONE BEYOND THE INLET OIPENING AT LEAST 18 INCHES ON ALL SIDES. 6. IF THE STONE FILTER E3ECOMES CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY FROM TTHE INLET AND CLEANED OR REPLACED. TEMPOIRARY DIKES AND SWALES 1. SEED AND MULCH SHAaLL BE APPLIED WITHIN 5 DAYS OF DIKE CONSTRUCTION (SEE VEGETATION). 2. THE UPSLOPE SIDE OF THIE DIKE SHALL PROVIDE POSITIVE DRAINAGE TO THE DIKE OUTLET. 3. NO EROSION SHALL OCCUR? AT THE DIKE OUTLET. PROVIDE ENERGY DISSIPATION MEASURES AS NECESSARY. 4. SEDIMENT LADEN RUNC)FF MUST BE RELEASED THROUGH A SEDIMENT TRAPPING FACILITY SUCH AS A PfOND, TRAP, OR SILT FENCE AS APPROPRIATE TO DRAINAGE AREA SIZE. SOD NOTES 1. SOD SHALL BE MACHINE CUT AT A UNIFORM SOIL THICKNESS OF 314 -INCH AT THE TIME OF CUTTINQ, MEASUREMENT FOR THICKNESS SHALL EXCLUDE TOP GROWTH AND THATCH, 2. STANDARD SIZE SECTIIONS OF SOD SHALL BE STRONG ENOUGH TO SUPPORT THEIR OWN WEIGHT ANID RETAIN THEIR SIZE AND SHAPE WHEN SUSPENDED BY THE END OF A 3 FOOT SECTION. 3. SOD SHALL NOT BE HARVESTED OR TRANSPLANTED WHEN MOISTURE CONTENT (EXCESSIVELY DRY OIR WET) MAY ADVERSELY AFFECT ITS SURVIVAL. 4. SOD SHALL BE HARVESTED, DELIVERED AND INSTALLED WITHIN A PERIOD OF 36 HOURS. SEEDING NOTES 1. SEED MIXTURE SHALL BE 709oRED TOP, 407 ANNUAL RYE, 407. CHEWING FESCUE, 10% WHITE DUTCH CLOVER, AND SHALL BE APPLIED AT THE RATE OF 225 LBS. PER ACRE. 2. SEED BEDS PLANTED BETWEEN MAY 1 AND OCTOBER 31 WILL REQUIRE IRRIGATION AND OTHER MAINTENANCE_ AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE. 3. FOR SEED BEDS PLANTED BETWEEN OCTOBER 37 AND APRIL 30, ARMORING OF THE SEED BED WILL 8E NECESSARY. (E.G., GEOTEXTILES, JUTE MAT, CLEAR PLASTIC COVERING) 4. BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS GRADIENT TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS AND SEDIMENT BASINS. 5. THE SEEDBED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE ROUGHENING. PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE. 6. FERTILIZERS ARE TO E3E USED ACCORDING TO SUPPLIERS RECOMMENDATIONS. AMOUNTS USED SHOULD 13E MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS. NOTE: CALL 1- 800 - 424 -5555 BEFORE YOU DIG. 1. WHERE SOIL IS HIGHLY ERODIBLE, NET SHALL ONLY BE USED IN CONJUNCTION WITH ANY ORGANIC MULCH SUCH AS STRAW AND WOOD FIBER. 2. JUTE NET SHALL BE HEAVY, UNIFORM CLOTH WOVEN OF SINGLE JUTE YARN, WHICH IF 36- TO 48- INCHES WIDE, SHALL WEIGH AN AVERAGE OF 1.2 LBS/ LINEAR YARD. IT MUST BE SO APPLIED THAT IT IS IN COMPLETE CONTACT WITH THE SOIL. 3. NETTING SHALL BE SECURELY ANCHORED TO THE SOIL WITH NO. 11 GAUGE WIRE STAPLES AT LEAST 6 INCHES LONG. TEMPORARY GRAVEL OUTLET NOTES 1. GRAVEL SHALL BE 518 INCH MINUS WASHED ROCK. A LAYER OF FILTER FABRIC SHALL BE EMBEDDED IN THE GRAVEL. 2. MINIMUM LENGTH IN FEET OF THE GRAVEL OUTLET STRUCTURE SHALL BE EQUAL TO SIX (6) TIMES THE NUMBER OF ACRES OF CONTRIBUTING DRAINAGE AREA. 3. THE INVERT OF THE GRAVEL OUTLET SHALL NOT BE LESS THAN 6 INCHES LOWER THAN THE MINIMUM ELEVATION OF THE TOP OF THE DIKE. 4. WATER SHALL BE DISCHARGED FROM THE GRAVEL OUTLET ONTO AN ALREADY STABILIZED AREA OR INTO A STABLE WATERCOURSE. 5, THE GRAVEL OUTLET STRUCTURE SHALL BE INSPECTED BY THE CONTRACTOR OR DESIGNEE AND REPAIRED AFTER EACH RUNOFF - PRODUCING RAIN. THE GRAVEL MUST BE REPLACED WHEN THE STRUCTURE CEASES TO FUNCTION AS INTENDED DUE TO SEDIMENT ACCUMULATION IN THE GRAVEL. PLASTIC COVERING NOTES 1. PLASTIC SHEETING SHALL HAVE A MINIMUM THICKNESS OF 6 MILS AND SHALL MEET THE REQUIREMENTS OF THE STATE STANDARD SPECIFICATIONS SECTION 9 -14.5. 2. COVERING SHALL BE INSTALLED AND MAINTAINED TIGHTLY IN PLACE BY USING SANDBAGS OR TIRES ON ROPES WITH A MAXIMUM 10 -FOOT GRID SPACING IN ALL DIRECTIONS, ALL SEAMS SHALL BE TAPED OR WEIGHTED DOWN FULL LENGTH AND THERE SHALL BE AT LEAST 12 INCH OVERLAP OF ALL SEAMS. J. CLEAR PLASTIC COVERING SHALL BE INSTALLED IMMEDIATELY ON AREAS SEEDED BETWEEN NOVEMBER 1 AND MARCH 31 AND REMAIN UNTIL VEGETATION IS FIRMLY ESTABLISHED. 4. WHEN THE COVERING IS USED ON UN- SEEDED SLOPES, IT SHALL BE KEPT IN PLACE UNTIL THE NEXT SEEDING PERIOD. 5. PLASTIC COVERING SHEETS SHALL BE BURIED TWO FEET AT THE TOP OF SLOPES IN ORDER TO PREVENT SURFACE WATER FLOW BENEATH SHEETS. 6. PROPER MAINTENANCE INCLUDES REGULAR CHECKS FOR RIPS AND DISLODGED ENDS. MULCHING NOTES 1. MULCH MATERIALS USED SHALL BE HAY OR STRAW AND SHALL BE APPLIED AT THE RATE OF 1.5 TO 2.5 TONS /AC. 2. MULCHES SHALL BE APPLIED IN ALL AREAS WITH EXPOSED SLOPES GREATER THAN 2: 1. 3. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON. 4. ALL AREAS NEEDING MULCH SHALL BE COVERED BY NOVEMBER 1. STOCKPILE NOTES 1. STOCKPILES SHALL BE STABILIZED (WITH PLASTIC COVERINGS OR OTHER APPROVED DEVICE) DAILY BETWEEN NOVEMBER 1 AND MARCH 31. 2. IN ANY SEASON, SEDIMENT LEACHING FROM STOCK PILES MUST BE PREVENTED. 3. TOPSOIL SHALL NOT BE PLACED WHILE IN A FROZEN OR MUDDY CONDITION, WHEN THE SUBGRADE IS EXCESSIVELY WET, OR WHEN CONDITIONS EXIST THAT MAY OTHERWISE BE DETRIMENTAL TO PROPER GRADING OR PROPOSED SODDING OR SEEDING. Z EXPIRES: 4. PREVIOUSLY ESTABLISHED GRADES ON THE AREAS TO BE TOPSOILED SHALL BE MAINTAINED ACCORDING TO THE APPROVED PLAN. APPROVED FOR CONSTRUCTION JOB NUMBER 8115 BY: DATE: Director of Public Works APPROVAL Z Z EXPIRES: (A o � � � O W U W O � O Z U CONSTRUCTION ENTRANCE NOTES 1. MATERIAL SHALL BE 4 INCH TO 8 INCH QUARRY SPALLS (4 TO 6 INCH FOR RESIDENTIAL SINGLE FAMILY LOTS) AND MAY BE TOP - DRESSED WITH 1 INCH TO 3 INCH ROCK. (STATE STANDARD SPECIFICATIONS, SECTION 8 -15) 2. THE ROCK PAD SHALL BE AT LEAST 12 INCHES THICK AND 50 FEET LONG (20 FEET FOR SITES WITH LESS THAN 1 ACRE OF DISTURBED SOIL). WIDTH SHALL BE THE FULL WIDTH OF THE VEHICLE INGRESS AND EGRESS AREA. SMALLER PADS MAY BE APPROVED FOR SINGLE- FAMILY RESIDENTIAL AND SMALL COMMERCIAL SITES. J. ADDITIONAL ROCK SHALL BE ADDED PERIODICALLY TO MAINTAIN PROPER FUNCTION OF THE PAD. 4, IF THE PAD DOES NOT ADEQUATELY REMOVE THE MUD FROM THE VEHICLE WHEELS, THE WHIEELS SHALL BE HOSED OFF BEFORE THE VEHICLE ENTER" A PAVED STREET. THE WASHING SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK AND WASH (WATER SHALL DRAIN TO A SEDIMENT RETENTION FACILITY OR THROUGH A SILT FENCE. TOPSOILING NOTES 1. APPLY TOPSOIL TO AREAS WITH HIGHLY DENSE OR IMPERMEABLE SOILS. 2. APPLY WHERE MULCH AND FERTILIZER ALONE WOULD NOT PROVIDE A SUITABLE GROWTH MEDIUM. 3. APPLY WHERE SLOPES DO NOT EXCEED 2:1. 4. TOPSOIL SHALL BE FRIABLE AND LOAMY (LOAM, SANDY LOAM, SILT LOAM, SAND CLAY LOAM CLAY LOAM). 5. TOPSOIL SHALL NOT BE PLACED WHILE IN A FROZEN OR MUDDY CONDITION, WHEN THE SUBGRADE IS EXCESSIVELY WET, OR WHEN CONDITIONS EXIST THAT MAY OTHERWISE BE DETRIMENTAL TO PROPER GRADING OR PROPOSED SODDING OR SEEDING. 6. PREVIOUSLY ESTABLISHED GRADES ON THE AREAS TO BE TOP SOILED SHALL BE MAINTAINED ACCORDING TO THE APPROVED PLAN. 7.. STOCKPILES SHALL BE STABILIZED (WITH PLASTIC COVERING OR OTHER APPROVED DEVICE) DAILY BETWEEN NOVEMBER 1 AND MARCH 31. B. IN ANY SEASON, SEDIMENT LEACHING FROM STOCKPILES MUST BE PREVENTED. rol v O LN 3 Z K 0 �0 M U� W � m �3 0 m N Z OECD �- ro CD M Q � N O v m Q C7 3 C I U Q z N t Li go z O (Q y IU W CL � C J ,V c I 1' W DATE 11 -25 -13 rain 8175BASE 4EET I OF-1 A /I/ER RUN APARTME/VTS NE 114, SE 1/4, SEC 24, TWN.17 N., RNG. 1 E., W.M. FILTER FABRIC ON TOP OF GRATE RUNOFF WATER WITH SEDIMENT WASHED ROCK 3/4" TO 3" 18" MIN (12" MIN. DEPTH) \ 1-1/2" WIRE MESH OR - SEDIMENT _� HARDWARE CLOTH UNDER FILTER FABRIC EXTEND FILTER /��. •.,', \ AND EXTEND 12" FABRIC G" BEYOND GRATE IN ALL BEYOND GRATE FILTERED DIRECTIONS C.B. INLET WATER INLET SEDIMENT PROTECTION (BEFORE PAVING) NOT TO SCALE ADAPTER SKIRT (FOR A PERFECT FIT) 0 I RETRIEVAL STRAP N �48 OVERFLOW GEOTEXTILE (TO BYPASS FABRIC PEAK STORM VOLUMES) 24" f EXISTING .. CATCH BASIN r #3003 SEDIMENT ONLY SEDIMENT ACCUMULATION PROVIDE CATCH BASIN SEDIMENT PROTECTION WITH STREAMGUARD BASIN INSERT #3003, FROM FOSS ENVIRONMENTAL 7440 W. MARGINAL WAY S. SEATTLE, WA 9810E -4141 PHONE: 1- 800 - 905)_3677 INLET SEDIMENT PROTECTION (AFTER PAVING) NOT TO SCALE NOTE: CALL 1- 800 - 424 -5555 BEFORE YOU DIG. Op0 R o� 0 o ..4a4n R = 25' MIN. � °& O 12" MIN. DEPTH (6 "MIN. FOR RESIDENTIAL ° oQ SINGLE FAMILY LOTS) O 4" TO 8" QUARRY SPALLS �5 (4" TO 6" FOR RESIDENTIAL SINGLE FAMILY LOTS) PROVIDE FULL WIDTH OF INGRESS /EGRESS AREA CONSTRUC110N ENTRANCE ROCK PAD N.T.S. FILTER FABRIC MATERIAL IN CONTINUOUS ROLLS USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE WIRE MESH SUPPORT FENCE FOR FILTER FABRIC BURY 80TTOM GROUND j SURFACE //� OF FILTER — / MATERIAL 8'x12" TRENIN CH 2 "x2" WOOD POSTS. STANDARD OR BETTER OR EQUIVALENT WIRE MESH SUPPORT FENCE (TO BE LOCATED ON THE DOWNHILL SIDE OF THE FILTER FABRIC) FILTER FABRIC MATERIAL PROVIDE WASHED GRAVEL --- !. BACKFILL, 3/4" — 3" IN TRENCH AND ON BOTH SIDES�g" MIN. OF FILTER FENCE FABRIC ON �I THE SURFACE // BURY BOTTOM OF FILTER 1'4e MATERIAL IN 8 "x12" TRENCH r 2 "x2 %5' WOOD POSTS. STANDARD OR BETTER FILTER FABRIC FENCE DETAIL OR EQUIVALENT N.T.S. APPROVED FOR CONSTRUCTION JOB NUMBER BY: DATE: 8115 ___ Director . Public Works APPROVAL Z Z Q EXPIRES: REWSION DESCRIP77ON 0 w 0 0 �w Y U W K 2 n O h O Z CL C) o� W � ll] Q J �S w zip 0 a N o co V+ � I v v • N 0 �m v Q c U Q y C, co J W /U v J Li ♦-� V3 I� DATE 11 -25 -13 DRAWING N( TP3 8175BASE SHEET ->£ OF -J 0 I N O I r 2 "x2 %5' WOOD POSTS. STANDARD OR BETTER FILTER FABRIC FENCE DETAIL OR EQUIVALENT N.T.S. APPROVED FOR CONSTRUCTION JOB NUMBER BY: DATE: 8115 ___ Director . Public Works APPROVAL Z Z Q EXPIRES: REWSION DESCRIP77ON 0 w 0 0 �w Y U W K 2 n O h O Z CL C) o� W � ll] Q J �S w zip 0 a N o co V+ � I v v • N 0 �m v Q c U Q y C, co J W /U v J Li ♦-� V3 I� DATE 11 -25 -13 DRAWING N( TP3 8175BASE SHEET ->£ OF -J