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HomeMy WebLinkAboutR-405209L0 O 1 O 1 0 W I- I- nJ 1L I- O r W O J CV I- Z W 2 O J W W 0 Z \O Lr_I OS ~ (Z)p N ~ N O � � g DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 SURFACE WATER STANDARD PLAN NOTES: THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE DRAINAGE PLAN SET ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER. HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS. THEY SHALL BE ADDED AFTER THE SURFACE WATER STANDARD PLAN NOTES. 1 BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS. A PRE -CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY REFERRED TO AS THE CITY. THE APPLICANT. AND THE APPLICANT'S CONTRACTOR 2 THE APPLICANT SHALL BE RESPONSIBLE FOR SECURING ALL NECESSARY CITY, STATE. AND FEDERAL PERMITS PRIOR TO CONSTRUCTION 3 ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM), RENTON MUNICIPAL CODE (RMC), AND THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA)- IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT TO CORRECT ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO THE CITY 4 APPROVAL OF THE ROAD. GRADING. PARKING, BUILDING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AS APPROVAL OF ANY OTHER CONSTRUCTION (E,G. WATER. SEWER, GAS, ELECTRICAL ETC.) PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS. AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE COORDINATION FOLLOWED BY WRITTEN APPROVAL FROM THE CITY 5. A COPY OF THE APPROVED PLANS SHALL BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 6. THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY FIELD SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHALL THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY COMPLETE IT IS THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE APPLICANT'S CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN. AND TO FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT SHOWN HEREON THAT MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN THE APPLICANT SHALL RECORD ON THE AS -BUILT DRAWINGS ALL UNDOCUMENTED UTILITIES DISCOVERED AND ANY CHANGES TO THE APPROVED PLANS. THE APPLICANT SHALL IMMEDIATELY NOTIFY THE ENGINEER OF RECORD IF A CONFLICT EXISTS 7. VERTICAL DATUM SHALL BE NAVD 88 AND HORIZONTAL DATUM SHALL BE NAD 83 (WA STATE PLANE, NORTH). UNLESS OTHERWISE APPROVED BY THE CITY. REFERENCE BENCHMARK, DATUM, AND ELEVATIONS SHALL BE NOTED ON THE PLANS. 8 ALL UTILITY TRENCH BACKFILL AND ROADWAY SUBGRADE SHALL BE COMPACTED TO 96% MAXIMUM DRY DENSITY PER SECTION 2-03.304)D - COMPACTION AND MOISTURE CONTROL TESTS OF THE WSDOT STANDARD SPECIFICATIONS. IN PERMEABLE PAVEMENT AND OTHER INFILTRATION AREAS. ALL TRENCH BACKFILL SHALL BE FIRM AND UNYIELDING BUT IN NO CASE SHALL BE COMPACTED TO MORE THAN 92 % OF MAXIMUM DRY DENSITY 9 OPEN CUTTING OF EXISTING ROADWAYS FOR STORM DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH THE CITY TRENCH RESTORATION STANDARDS 10. ALL PIPE AND STRUCTURES SHALL BE STAKED FOR SURVEY LINE AND GRADE PRIOR TO THE START OF CONSTRUCTION. WHERE SHOWN ON THE PLANS OR WHERE DIRECTED BY THE CITY, THE EXISTING MANHOLES, CATCH BASINS, OR INLETS SHALL BE ADJUSTED TO THE GRADE AS STAKED. 11. ALL FLOW CONTROL FACILITIES SHALL BE INSTALLED AND IN OPERATION PRIOR TO. OR IN CONJUNCTION WITH. ANY CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE CITY, 12. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH 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 AND BACKFILL SHALL BE AS SHOWN ON THE CITY STANDARD PLAN 220.00, 220,10. AND 22020 13. STEEL PIPE SHALL BE ALUMINIZED. OR GALVANIZED WITH ASPHALT TREATMENT 1. 2, OR 51NSIDE AND OUTSIDE 14. ALL DRAINAGE STRUCTURES SUCH AS CATCH BASINS AND MANHOLES SHALL BE FITTED WITH DUCTILE IRON, BOLT -LOCKING LIDS PER THE CITY STANDARD PLAN 204 10, 204.20, 204.30, AND 204.50. STRUCTURES SHALL HAVE. • RECTANGULAR OR ROUND. SOLID LIDS WHEN NOT COLLECTING RUNOFF. AND OUTSIDE OF THE ROADWAY • ROUND. SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND LOCATED WITHIN THE ROADWAY, BUT OUTSIDE OF THE CURB/GUTTER LINE • ROUND, SOLID LIDS DISPLAYING THE CITY LOGO WHEN WITHIN THE PUBLIC RIGHT-OF-WAY OR IN AN EASEMENT TO THE CITY. PRIVATE STRUCTURE LIDS OUTSIDE PUBLIC RIGHT-OF-WAY AND EASEMENTS TO THE CITY SHALL NOT DISPLAY THE CITY LOGO. 15. BUILDINGS AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1 EASEMENT WIDTHS AND BUILDING SETBACKS LINES OF THE RENTON SWDM. 16. LIDS OF MANHOLESICATCH BASINS WITHIN PUBLIC RIGHT-OF-WAY SHALL NOT BE ADJUSTED TO FINAL GRADE UNTIL AFTER PAVING ALL MANHOLE,CATCH BASIN RIMS SHALL BE ADJUSTED TO BE FLUSH WITH FINAL FINISHED GRADES. UNLESS OTHERWISE SHOWN. 17 ALL DRIVEWAY CULVERTS LOCATED WITHIN CITY RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3.1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE BOTTOM OF THE DITCH. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) STD. PLAN - 267.00 AlOURmar PUBLIC WORKS SURFACE WATER STANDARD PLAN PPR n m]� DEPARTMENT NOTES (1 OF 2) GAZ 9/28/2018 1 OraF DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 SURFACE WATER STANDARD PLAN NOTES: THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE DRAINAGE PLAN SET ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER. HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT HOWEVER. THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE SURFACE WATER STANDARD PLAN NOTES. 18 ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED. SHALL BE OF SOUND QUARRY ROCK PLACED TO A MINIMUM DEPTH OF ONE (1) FOOT AND SHALL MEET THE FOLLOWING SPECIFICATIONS- • 4 .8 INCH ROCK 140 - 70% PASSING. • 2 .4 INCH ROCK 1 30. 40 % PASSING. AND • LESS THAN 2 INCH ROCK / 10 - 20% PASSING. 19. FOOTING DRAINAGE SYSTEMS AND ROOF DOWNSPOUT SYSTEMS SHALL NOT BE INTERCONNECTED AND SHALL SEPARATELY CONVEY COLLECTED FLOWS TO THE CONVEYANCE SYSTEM OR FLOW CONTROL FACILITY ON THE SITE. UNLESS APPROVED BY THE CITY. FOOTING DRAINS SHALL NOT BE CONNECTED TO ON -SITE BMPS. 20, THE END OF EACH STORM DRAIN STUB SHALL BE CAPPED A CLEANOUT TOPPED WITH A BOLT -LOCKING LID MARKED "STORM' SHALL BE LOCATED AT THE PROPERTY LINE OR AT THE POINT OF CONNECTION OF A PRIVATE STORM DRAINAGE CONVEYANCE SYSTEM PER THE CITY STANDARD PLAN 227.00 21 ALL STORM SYSTEM EXTENSIONS SHALL BE STAKED FOR LINE AND GRADE BY A SURVEYOR LICENSED IN WASHINGTON STATE, AND CUT SHEETS SHALL BE PROVIDED TO THE CITY PRIOR TO CONSTRUCTION 22, ALL NEWLY -INSTALLED AND NEWLY -REHABILITATED (PUBLIC AND PRIVATE) STORM CONVEYANCE SYSTEMS SHALL BE INSPECTED BY MEANS OF REMOTE CCTV ACCORDING TO THE CITY STANDARD PLAN 266.00. CCTV INSPECTIONS AND REPORTS SHALL BE SUBMITTED TO THE CITY PRIOR TO RECEIVING APPROVAL TO INSTALL PROJECT CURBS. GUTTERS AND/OR PAVEMENT. 23. ALL STORM SYSTEMS AND CONNECTIONS TO EXISTING MAINS SHALL BE TESTED IN ACCORDANCE WITH SECTION 7-04.3(1) OF THE WSDOT STANDARD SPECIFICATIONS AND IN THE PRESENCE OF A REPRESENTATIVE OF THE CITY. STORM DRAIN STUBS SHALL BE TESTED FOR ACCEPTANCE AT THE SAME TIME THE MAIN STORM IS TESTED. 24 FOR ALL DISTURBED PERVIOUS AREAS (COMPACTED. GRADED. LANDSCAPED, ETC.) OF THE DEVELOPMENT SITE, TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL EITHER STOCKPILE AND REDISTRIBUTE THE EXISTING DUFF LAYER AND NATIVE TOPSOIL OR AMEND THE SOIL WITH COMPOST IN ACCORDANCE WITH STANDARD PLAN 26400 25. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY DOES NOT RELIEVE THE APPLICANT OF THE CONTINUING LEGAL OBLIGATION ANDlOR LIABILITY CONNECTED WITH STORMWATER DISPOSAL. THE CITY DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND MAINTENANCE OF THE STORM SYSTEM PROVIDED DURING CONSTRUCTION. 26. ADEQUATE SAFEGUARDS, SAFETY DEVICES. PROTECTIVE EQUIPMENT. FLAGGERS, AND ANY OTHER ACTIONS NEEDED TO PROTECT THE LIFE, HEALTH. AND SAFETY OF THE PUBLIC. AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK SHALL BE PROVIDED. ANY WORK WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED BY THE CITY. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-10 TEMPORARY TRAFFIC CONTROL SHALL APPLY 27. PROJECTS LOCATED WITHIN THE CITY's AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH SPECIAL REQUIREMENT M6 OF THE RENTON SWDM AND AQUIFER PROTECTION REGULATIONS (RMC 4-3-050), 28. PLACEMENT OF SURFACE APPURTENANCES (CATCH BASINlMANHOLE LIDS, CLEANOUTS, INLETS. ETC.) IN THE STREET TRAVEL LANE WHEEL PATH. INTERSECTIONS OF STREET TRAVEL LANES. BIKE LANES, SIDEWALKS. AND CROSSWALKS SHALL BE AVOIDED WHENEVER POSSIBLE. ANY SURFACE APPURTENANCE PLACED IN A SIDEWALK OR CROSSWALK SHALL BE FITTED WITH A NON -SLIP OR NON-SKID LID PER ADA REQUIREMENTS. 29. CLEARLY LABEL PUBLIC AND PRIVATE SYSTEMS ON THE PLANS- PRIVATE SYSTEMS SHALL BE MAINTAINED BY THE APPLICANT. 30. MINIMUM COVER OVER STORM DRAINAGE PIPE SHALL CONFORM TO TABLE 4.2 1.A2 OF THE RENTON SWDM 31 CONSTRUCTED PERMEABLE PAVEMENT SHALL BE PERMEABLE ENOUGH TO ABSORB WATER AT A MINIMUM RATE OF 20 INCHES PER HOUR IMMEDIATELY AFTER THE PAVEMENT SURFACE HAS BEEN WETTED CONTINUOUSLY FOR AT LEAST 10 MINUTES- COMPLIANCE WITH THIS MINIMUM RATE SHALL BE CHECKED PRIOR TO CONSTRUCTION APPROVAL OF THE PAVEMENT. COMPLIANCE MAY BE CHECKED USING A SIMPLE BUCKET TEST IN WHICH 5 GALLONS OF WATER IS POURED ONTO THE PAVEMENT SURFACE ALL AT ONCE IF ONLY A MINOR AMOUNT OF WATER PONDS OR RUNS OFF THE SURFACE, THEN THE PAVEMENT IS CONSIDERED TO MEET THE MINIMUM RATE OF ABSORPTION AT LEAST ONE TEST SHALL BE CONDUCTED PER 1.000 SQUARE FEET OF PERMEABLE PAVEMENT IF THIS TEST IS NOT CONCLUSIVE. THEN ANOTHER TEST PER ASTM C1701 SHALL BE CONDUCTED. FOR LARGE AREAS (E. G. PARKING AREAS). TESTING OBSERVATION MAY BE ACCOMPLISHED WHILE WALKING BEHIND A SLOWLY MOVING WATER TRUCK DISCHARGING WATER AT A RATE SIMILAR TO THE BUCKET TEST. PERMEABLE PAVERS SHALL BE TESTED USING ASTM C1781. UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTSI STD. PLAN - 267.10 SURFACE WATER STANDARD PLAN IAPPRMD NOTES (2 OF 2) GAZ 9/28/2018 I DATF SAZEI DESIGN GROUP, LLC 6608 110TH AVE. N. E. KIRKLAND, WA. 98033 TEL. (425) 212-2280 FAX. (425) 889-6887 :4S M : 4 S At SW 1 /4 OF SE 1 /4 OF SEC. 5, TWP. 23 N., RNG. 5 E., W.M. CITY OF RENTON, STATE OF WASHINGTON CITY OF RENTON STANDARDS All materials and workmanship shall be in accordance with the City of Renton Standard and Supplemental Specifications (current adopted version) except where otherwise noted in these standards. Materials and workmanship are required to be in conformance with standards for the Standard Specifications for Road, Bridge, and Municipal Construction prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT) and shall comply with the current edition, as modified by the City of Renton Supplemental Specifications. 1. An asphalt paver shall be used in accordance with Section 5-04.3(3) of Standard Specifications. A "Layton Box" or equal may be used in place of the power -propelled paver. Rollers shall be used in accordance with Section 5- 04.3(4) of the Standard Specifications. "Plate Compactors" and "Jumping Jacks" shall not be used in lieu of rollers. 2. Trench backfill and resurfacing shall be as shown in the City of Renton Standard Details, unless modified by the City permit. Surfacing depths shown in the standard details are minimums and may be increased by the Engineer to meet traffic loads or site conditions. 3. Requirement for Patching, Overlay, and Overlay Widths: Al trench and pavement cuts shall be made by sawcut or by grinding. Sawcuts or grinding shall be a minimum of one foot (1') outside the trench width. The top two inches (2") of asphalt shall be ground down to a minimum distance of one foot (1') beyond the actual outside edges of the trench and shall be replaced with two inches (2") of Class 8 asphalt, per City of Renton Standard Plans. At the discretion of the engineer, a full street width overlay may be required. Lane -width or a full street -width overlay will be determined based upon the location and length of the proposed trench within the roadway cross-section. Changes in field conditions may warrant implementation of additional overlay requirements. a. Trenches (Road Crossings): (1) The minimum width of a transverse patch (road crossing) shall be six and one-half feet (6.S'). See City of Renton Standard Plans. (2) Any affected lane will be ground down two inches (2") and paved forthe entire width of the lane. (3) The patch shall be a minimum of one foot (1') beyond the excavation and patch length shall be a minimum of an entire traveled lane. (4) If the outside of the trenching is within three feet (T) of any adjacent lane line, the entire adjacent traveled lane affected will be repaved. (5) An area including the trench and one foot (1') on each side of the trench but not less than six and one- half feet (6.5') total for the entire width of the affected traveled lanes will be ground down to a depth of two inches (2"). A two-inch (2") overlay of Class B asphalt will be applied per City standards. b. Trenches Running Parallel with the Street: (1) The minimum width of a longitudinal patch shall be four and one-half feet (4.5'). See City of Renton Standard Plans. (2) If the trenching is within a single traveled lane, an entire lane -width overlay will be required. (3) If the outside of the trenching is within three feet (3') of any adjacent lane line, the entire adjacent traveled land affected will be overlaid. (4) If the trenching is greater than or equal to 30% of lane per block (660 foot maximum block length), or if the total patches exceed 12 per block, then the lanes affected will be overlaid. Minimum overlay shall include all patches within the {dock section. (5) The entire traveled lane width for the length of the trench and an additional ten feet (10') at each end of the trench will be ground down to a depth of two inches (2"). A two-inch (2") overlay of Class B will be applied per City standards. C. Potholing: Potholing shall meet the same requirements as trenching and pavement restoration. Potholing shall be a minimum of one foot (1') beyond the excavation. All affected lanes will be ground down to a depth of two inches (2") and paved not less than six and one half Feet (6.5') wide for the entire width of tlTe lane. Potholes greater than five feet (5') it) length, width or diameter shall be restored to trench restoration standards. In all cases potholes shall be repaired per Renton Standard Plans. Restoration requirements utilizing vactor equipment will be determined by the Engineer. 4. Pavement Removal in Lieu of Grinding: The contractor in all cases can remove the pavement in the replacement area instead of grinding out the specified two inches (2") of asphalt. Full pavement replacement to meet or exceed the existing pavement depth will be required for the area of pavement removal. Patching of pervious concrete shall follow American Concrete Institute (ACI) 522.1-13. Porous asphalt shall be specified on a project -by -project basis by the engineer. Permeable materials should be replaced in -kind where feasible. Patching porous asphalt with conventional asphalt is acceptable if it is no more than ten percent (10%) of the total facility area or does not impact the overall facility function. Appropriate precautions shall be taken duringpavernentrepair and replacement efforts to prevent clogging of adjacent surfaces. S. Trench Backfiil and Restoration Construction Requirements: a. Trench restoration shall be either by a patch or overlay method, as required and indicated on City of Renton Standard Plans. b. All trench and pave merit cuts, which will not be overlaid, shall be made by sawcut or grinding. Sawcuts shall be a minimum of two feet (2') outside the excavated trench width. c. All trenching within the top four feet (4') shall be backfilled with crushed surfacing materials conforming to Section 4-04 of the Standard Specifications. Any trenching over four feet (4') in depth may use materials approved by the Engineer or Materials Lab for backfilling below the four -foot (4')depth. d. If the existing material (or other material) is determined by the Engineer to be suitable for backfill, the contractor may use the native material except that the top six inches (6") shall be crushed surfacing tap course material. e. The trench shall be compacted to a minimum ninety -Five percent (95%) density, as described in Section 2- 03 of the Standard Specifications. In the top six feet (6') of any trench, backfill compaction shall be performed in eight (9) to twelve -inch (12") lifts. Any trench deeper than six feet (6') may be compacted in twenty-four inch (24") lifts, up to the top six-foot (6') zone. All trench backfill shall be firm and unyielding but in no case shall be compacted to more than ninety-two percent (92%) of maximum density in permeable pavement areas. f. All compaction shall be performed by mechanical methods. The compaction tests may be performed in four -foot (4') vertical increments maximum. The test results shall be giver) to the Engineer for review and approval prior to paving. The number and location of tests required shall be determined by the Engineer. d. Temporary restoration of trenches for overnight use shall be accomplished by using MC mix (cold mix), Asphalt Treated Base (ATB), or steel plates, as approved by the Engineer. ATE; used for temporary restoration may be dumped directly into the trench, bladed out and rolled. After rolling, the trench must be filled flush with asphalt to provide a smooth riding surface. If the temporary trench restoration does 10-3-19 J I NO. I REVISION not hold up, the contractor shall repair the patch within eight hours of being notified of the problem by the City. This requirement applies 24 hours per day, seven days per week. In the event that the City determines to repair the temporary patch, the contractor shall reimburse the City in an amount that is double the City's costs in repairing the patch, with the second half of the reimbursement to represent City overhead and hidden costs. e. Asphalt Concrete Class E or Class B shall be placed to the compacted depth as required and indicated on City of Renton Standard Plans or as directed by the Engineer. The grade of aspha€t shall he AR-4000W. The materials shall be made in conformance with Section 9-02.1(4) of the StandardSpecifications. f. Tack coat shall be applied to the existing pavement at edge of saw cuts and shall be emulsified asphalt grade CSS-1, as specified in Section 9-02.1(6) of the Standard Specifications. Tack shall be applied as specified in Section 5-04 of the Standard Specifications. g. Asphalt Concrete Class E or Class B shall be placed in accordance with Section 5-04 of the Standard Specifications; except those longitudinal joints between successive layers of asphalt concrete shall be displaced laterally a minimum of twelve inches (12"), unless otherwise approved by the Engineer. Fine and coarse aggregate shall be in accordance with Section 9-03.8 of the Standard Specifications. All street surfaces, walks or driveways within the street trenching areas shall be feathered and shimmed to an extent that provides a smooth -riding connection and expeditious drainage flow for the newly paved surface. Feathering and shimming shall not decrease the minimum vertical curb depth below four inches (4") for storm water flow. The Engineer may require additional grinding to increase the curb depth available For storm water flow in areas that are inadequate. Shimmingand feathering as required by the Engineer shall be accomplished by raking out the oversized aggregates from the Class B mix as appropriate. Surface smoothness shall be per Section 5-04.3(13) of the Standard Specifications. The paving shall be corrected by removal and repaving of the trench only. Asphalt patch depths will vary based upon the streets being trenched. The actual depths of asphalt and the work to be performed shall be as required and indicated on City of Renton Standard Plans. Compaction of all lifts of asphalt shall be a minimum ninety-two percent (92%) of density as determined by WSDOT Test Method 705. The number of tests required shall be determined by the Engineer. Testing shall be performed by an independent testing lab with the results being supplied to the Engineer. Testing is not intended to relieve the contractor from any liability for the trench restoration. It is intended to show the inspector, and the City, that the restoration meets these specifications. h. All joints, except those associated with permeable pavement, shall be sealed using paving asphalt AR- 4000W. i. When trenching within the unpaved roadway shoulder(s), the shoulder shall be restored to its original condition, or better. j. The final patch shall be completed as soon as possible and shall not exceed fifteen (15) working days after first opening the trench. This time frame may be adjusted if delays are due to inclement paving weather or other adverse conditions that may exist. However, delaying of final patch or overlay work is subject to the Engineer's approval. The Engineer may deem it necessary to complete the work within the fifteen (15) working daytime frameand not allow any time extension. Should thisoccur, the contractor shall perform the necessary work, as directed by the Engineer. k. A City of Renton Temporary Traffic Control Plan (from Renton Transportation Engineering) shall be submitted and approved by the Engineer a minimum of three (3) working days prior to commencement of work. 6. Removal of Utility Locate Markings from Sidewalks Required: The permittee will be required to remove utility locate marks on sidewalksonly within the Center Downtown Zone. The perm ittee shall remove the utility locate marks within 14 days of job completion. SURVEYED: DESIGNED: R. DECCIO DRAWN: LR CHECKED: R. DECCIO BY I DATE I APPR I APPROVED: R. DECCIO SCALE: VERTICAL: NAVD 1988 • HORIZONTAL: NAD 1983/1991 1 "=20' DATU M PRI ONE INCH AT FULL SCALE Planning/ IF NOT ONE INCH SCALE ACCORDINGLY CITY OF RENTON uilding/Public Works Dept. R-405209 IN COMPLIANCE WITH CITY OF RENTON STANDARDS DEVELOPMENT ENGINEERING jchavez 10/18/2019 ' AVON DEVELOPMENT 2 LOT SHORT PLAT NOTES DATE: 3-22-19 O J CV Z W O J W W 0 PAGE: DRAWING NO: Z R-405209 ' SHEET: OF:9