P P / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / US X X X X X X X X X X X X X X X X X X X X X W W W W W / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / G G G G G G G G G G G G G G G G G X W W W W W W W W W W W W W W W W X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X G G G G G G G G W OH OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP 0.5' W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP 0.5' G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G 6.4' 12.5' G G G G SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS W W W W W SD SD SD SD SD SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SD SD SD 0.5478 2' UTILITY EASEMENT REC. NO. 7107190140, ROS UNDER REC. NO. 20041203900004 AND BLA REC. NO. 20190321900007. 23.8758 18.9407 35.9298 23.8965 10.8563 OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP 2 W W W W W W W W W W W W W W W W W W W W W OHP OHP OHP OHP OHP OHP OHP OHP OHP OHP LINDEN AVENUE N. N. 143RD STREET (PUBLIC RIGHT OF WAY) (PUBLIC RIGHT OF WAY) W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W 48" 54" 48" BUILDING OUTLINE SEE ARCH'L PLANS DRAINAGE SWALE PER BMP E2.80 (TYP) SEDIMENT TRAP W/ SUMP PUMP PER BMP E3.40 PUMP SILT LADEN RUNOFF FROM SEDIMENT TRAP TO SEDIMENT TANK BUILDING OUTLINE SEE ARCH'L PLANS BUILDING FOOTINGS SHOWN FOR REFERENCE. INDIVIDUAL FOOTING EXCAVATION NOT SHOWN ON PLAN (SEE STRUCTURAL PLANS) FFE = 476.80 BOE = 476.13 EXISTING BUILDING TO REMAIN TREE PROTECTION PER CITY OF SEATTLE STD PLAN 132 AND BMP C101 (TYP) DISCHARGE "CLEAN" RUNOFF TO PUBLIC SYSTEM COORDINATE TEMPORARY AND PERMANENT GRADING ALONG PROPERTY LINE WITH ADJACENT PROPERTY OWNER COORDINATE TEMPORARY AND PERMANENT GRADING ALONG PROPERTY LINE WITH ADJACENT PROPERTY OWNER COORDINATE TEMPORARY AND PERMANENT GRADING ALONG PROPERTY LINE WITH ADJACENT PROPERTY OWNER ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► DRAINAGE SWALE PER BMP E2.80 (TYP) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● SILT FENCE PER BMP E3.10 (TYP) SILT FENCE PER BMP E3.10 (TYP) SILT FENCE PER BMP E3.10 (TYP) SILT FENCE PER BMP E3.10 (TYP) MAINTAIN SAFE PEDESTRIAN ACCESS ALONG LINDEN AVENUE N THROUGH DURATION OF CONSTRUCTION. WHEN WORK SHALL OCCUR IN RIGHT-OF-WAY, PROVIDE DETOUR FOR PEDESTRIAN TRAFFIC. COORDINATE TRAFFIC CONTROL WITH THE CITY OF SEATTLE. REPAIR (AS REQUIRED) AND USE EXISTING FENCE TO SECURE PROJECT SITE DURING CONSTRUCTION. REMOVE EXISTING FENCE WHEN CONSTRUCTION ACTIVITY IS COMPLETE AND SITE IS SECURED. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X TEMPORARY CONSTRUCTION FENCE WHERE HEIGHT OF EXISTING FENCE IS LESS THAN 6-FEET OR WHERE DEMOLISHED BUILDING EXISTED TEMPORARY CONSTRUCTION FENCE WHERE HEIGHT OF EXISTING FENCE IS LESS THAN 6-FEET OR WHERE DEMOLISHED BUILDING EXISTED TEMPORARY CONSTRUCTION FENCE WHERE HEIGHT OF EXISTING FENCE IS LESS THAN 6-FEET OR WHERE DEMOLISHED BUILDING EXISTED PROPERTY LINE (TYP) PROPERTY LINE (TYP) PROPERTY LINE (TYP) PROPERTY LINE (TYP) INLET PROTECTION PER BMP E3.25 ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► ► DRAINAGE SWALE PER BMP E2.80 (TYP) INSTALL PORTION OF STORM SYSTEM TO ESTABLISH EROSION CONTROL DRAINAGE COLLECTION. SEE SHEET C300 FOR DESIGN. SEDIMENT TRAP W/ SUMP PUMP PER BMP E3.40 PROTECT EX TREE STORMTANK DETENTION SYSTEM OUTLINE SEE SHEET C311 FOR DETAILS BOTTOM OF STORMTRAP MODULE BOTTOM OF AGGREGATE PERIMETER FFE = 476.80 BOE = 476.13 FFE = 476.80 BOE = 476.13 FFE = 476.80 BOE = 476.13 (3) MOVEABLE SEDIMENT TANKS PER BMP E3.50. ROUTE CONSTRUCTION STORMWATER TO SEDIMENT TRAP. PUMP TO TANK PRIOR TO DISCHARGE TO PUBLIC SYSTEM. PROVIDE MINIMUM OF 25,139 GALLONS MOVE SEDIMENT TANKS ON SITE AS NECESSARY TO SUPPORT ACCESSIBILITY AND CONSTRUCTION NEEDS SO LONG AS MINIMUM VOLUME IS MAINTAINED. PUBLIC STORM MAIN EXTENSION AND CONCRETE PANEL RESTORATION (INSTALLED BY ADJACENT PROJECT - SDOT# 419045) DETENTION FACILITY BOE = 470.00 MAINTAIN SAFE PEDESTRIAN ACCESS ALONG N 143RD STREET THROUGH DURATION OF CONSTRUCTION. WHEN WORK SHALL OCCUR IN RIGHT-OF-WAY, PROVIDE DETOUR FOR PEDESTRIAN TRAFFIC. COORDINATE TRAFFIC CONTROL WITH THE CITY OF SEATTLE. FFE = 476.80 BOE = 476.13 BUILDING FOOTINGS WILL BE INSTALLED WITH SHORT AGGREGATE PIERS (SAP'S) WHERE DENSE NATIVE SOILS, OR STRUCTURAL FILL, DO NOT MEET REQUIREMENTS AND RECOMMENDATIONS FROM THE PROJECT GEOTECHNICAL ENGINEERING REPORT. REFER TO THE STRUCTURAL PLANS FOR ADDITIONAL INFORMATION. UNDERGROUND UTILITY NOTE: UNDERGROUND UTILITIES ARE SHOWN IN THE APPROXIMATE LOCATION. THERE IS NO GUARANTEE THAT ALL UTILITY SERVICES ARE SHOWN, OR THAT THE LOCATION, SIZE AND MATERIAL IS ACCURATE. THE CONTRACTOR SHALL UNCOVER ALL INDICATED PIPES WHERE CROSSING INTERFERENCES, OR CONNECTIONS OCCUR PRIOR TO TRENCHING OR EXCAVATION FOR ANY PIPE OR STRUCTURES, TO DETERMINE ACTUAL LOCATIONS, SIZE AND MATERIAL. THE CONTRACTOR SHALL MAKE THE APPROPRIATE PROVISION FOR PROTECTION OF SAID FACILITIES. THE CONTRACTOR SHALL NOTIFY ONE-CALL AT 8-1-1 (WASHINGTON811.COM) AND ARRANGE FOR FIELD LOCATION OF EXISTING FACILITIES PRIOR TO CONSTRUCTION. LEGEND PROPERTY LINE EXISTING CONTOUR CONSTRUCTION FENCE X X SILT FENCE ● ● ● ● ● DRAINAGE SWALE ► ► ► ► ► ► GENERAL TESC NOTES: 1. THE EROSION & SEDIMENT CONTROL (ESC) MEASURES SHOWN ON THIS PLANS ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC MEASURES MUST BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G. ADDITIONAL COVER MEASURES, PUMPING AND CONTAINMENT, RELOCATION OF DITCHES AND SILT FENCES, PERIMETER PROTECTION ETC.) 2. THESE FACILITIES MUST BE SATISFACTORILY MAINTAINED UNTIL THE CONSTRUCTION AND LANDSCAPING IS COMPLETED AND THE POTENTIAL FOR ONSITE EROSION HAS PASSED. THE ESC PLANS ARE TO BE CONSIDERED A DYNAMIC MINIMUM GUIDELINE AND AS SUCH WILL MOST LIKELY HAVE TO BE CONTINUALLY EVALUATED AND/OR MODIFIED DEPENDING ON SITE CONDITIONS. 3. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE DEVELOPER AND ESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED. 4. STABILIZED CONSTRUCTION ENTRANCES MUST BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. 5. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. 6. THE ESC FACILITIES MUST BE INSPECTED DAILY BY THE DEVELOPER/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS MUST BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES. 7. SOILS MUST NOT REMAIN EXPOSED AND UNWORKED FOR MORE THAN 7 DAYS FROM MAY 1 THROUGH SEPTEMBER 30 AND NOT MORE THAN 48 HOURS FROM OCTOBER 1 AND APRIL 30. EXPOSED AND UNWORKED SOILS MUST BE COVERED BY MULCH, SODDING, PLASTIC COVERING, JUTE-MATTING, OR AS OTHERWISE APPROVED OR REQUIRED BY THE PUBLIC WORKS CONSTRUCTION INSPECTOR. 8. THE ESC FACILITIES ON INACTIVE SITES MUST BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH DURING THE DRY SEASON, BI-MONTHLY DURING THE WET SEASON, OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. 9. AT NO TIME MAY MORE THAN 6-INCHES OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES MUST BE CLEANED PRIOR TO PAVING AND FINAL APPROVAL. THE CLEANING OPERATION MAY NOT FLUSH SEDIMENT-LADEN WATER INTO THE DOWNSTREAM SYSTEM. 10.DUST GENERATED DURING CONSTRUCTION ACTIVITIES MUST BE CONTROLLED BY WETTING DUST SOURCES SUCH AS AREAS OF EXPOSED SOILS, WASHING TRUCK WHEELS BEFORE THEY LEAVE THE SITE, AND INSTALLING AND MAINTAINING ROCK CONSTRUCTION ENTRANCES. CONTRACTOR MUST MECHANICALLY SWEEP STREETS DAILY WITH VACUUM SWEEPER UNLESS OTHERWISE APPROVED. 11.ANY EXCAVATED MATERIAL REMOVED FROM THE CONSTRUCTION SITE AND DEPOSITED ON PROPERTY WITHIN THE CITY LIMITS MUST BE DONE IN COMPLIANCE WITH A VALID CLEARING & GRADING PERMIT. LOCATIONS FOR THE MOBILIZATION AREA AND STOCKPILED MATERIAL MUST BE APPROVED BY THE CLEARING AND GRADING INSPECTOR AT LEAST 24 HOURS IN ADVANCE OF ANY STOCKPILING. 12.WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF 2-INCHES. 13.PRIOR TO SEPTEMBER 15, ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED PRIOR TO OCTOBER 1. 14.REMOVE ALL ESC MEASURES ONCE ALL WORK IS COMPLETED AND SITE IS PERMANENTLY STABILIZED. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND TO ENSURE THAT SEDIMENT AND SEDIMENT-LADEN WATER DO NOT LEAVE THE SITE. ANY SUCH FACILITIES INSTALLED MUST BE MAINTAINED IN PROPER OPERATING CONDITION UNTIL ALL DISTURBED AREAS HAVE BEEN REVEGETATED OR OTHERWISE DEVELOPED AND THE POTENTIAL FOR EROSION ELIMINATED. LIMITS OF CONSTRUCTION BOTTOM OF EXCAVATION TREE PROTECTION FINISH FLOOR 4" SLAB ON GRADE 4" CAPILLARY BREAK PER GEOTECHNICAL REPORT NATIVE SUBGRADE OR STRUCTURAL FILL PER PROJECT SPECIFICATIONS BOTTOM OF EXCAVATION (BOE) ELEVATIONS AT FOOTING VARY. SEE STRUCTURAL PLANS FOR BOTTOM OF FOOTING ELEVATIONS EARTHWORK QUANTITIES EXCAVATION 720 CY FILL 1,950 CY NOTE: EARTHWORK QUANTITIES WERE CALCULATED FROM EXISTING GRADE AS IDENTIFIED ON THE TOPOGRAPHIC SURVEY PREPARED BY CORE DESIGN, DATED 5/1/2018 AND REVISED ON 6/17/19. THE QUANTITIES SHOWN ARE PRELIMINARY ESTIMATES ONLY AND INTENDED FOR MUNICIPAL PERMITTING AND REVIEW FEES. THE CONTRACTOR SHALL IGNORE THESE QUANTITIES, THEY ARE EXCLUDED FROM THE BID DOCUMENT INFORMATION. THESE VOLUMES SHALL NOT BE USED BY THE CONTRACTOR AS A BASIS FOR ANY CONTRACTUAL INFORMATION. THE CONTRACTOR SHALL PREPARE THEIR OWN EARTHWORK QUANTITIES BASED ON THE INFORMATION PROVIDED IN THE CONTRACT DOCUMENTS, INCLUDING BUT NOT LIMITED TO DRAWINGS, SPECIFICATIONS, AND THE GEOTECHNICAL REPORT. SLAB ON GRADE DETAIL (NTS) NW 1/4, SECTION 19, TOWNSHIP 26N, RANGE 4E, W.M. 117 S. Main St., Suite 400 SMR Architects Seattle, WA 98104 PH: 206.623.1104 FX: 206.623.5285 ISSUE SETS DATE DESCRIPTION REVISIONS / NOTES TITLE AHJ STAMP DRAWN CHECKED ISSUE DATE JOB NO. SHEET NO.: BP # DEMO # SIP # MUP # 20002 CJS BJB 6775971-CN 6775972-DM - - 916 N 143RD ST SEATTLE, WA 98133 LINDEN AVENUE APARTMENTS NO DATE DESCRIPTION BUILDING PERMIT 10/12/20 BP SUBMIT 12/14/20 25% CD SET 5/6/21 1 1/5/21 BP CORR #1 2 5/6/21 BP CORR #2 C200 EROSION AND SEDIMENT CONTROL PLAN g. Call before you D 1-800-424-5555 8-1-1 or
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AVENUE N THROUGHDURATION OF CONSTRUCTION.WHEN WORK SHALL OCCUR IN
RIGHT-OF-WAY, PROVIDEDETOUR FOR PEDESTRIAN
TRAFFIC. COORDINATETRAFFIC CONTROL WITH THE
CITY OF SEATTLE.
REPAIR (AS REQUIRED) AND USEEXISTING FENCE TO SECURE PROJECTSITE DURING CONSTRUCTION.REMOVE EXISTING FENCE WHENCONSTRUCTION ACTIVITY ISCOMPLETE AND SITE IS SECURED.
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TEMPORARY CONSTRUCTION FENCEWHERE HEIGHT OF EXISTING FENCEIS LESS THAN 6-FEET OR WHEREDEMOLISHED BUILDING EXISTED
TEMPORARYCONSTRUCTION FENCEWHERE HEIGHT OFEXISTING FENCE IS LESSTHAN 6-FEET OR WHEREDEMOLISHED BUILDINGEXISTED
TEMPORARY CONSTRUCTION FENCEWHERE HEIGHT OF EXISTING FENCEIS LESS THAN 6-FEET OR WHEREDEMOLISHED BUILDING EXISTED
PROPERTY LINE (TYP)
PROPERTY LINE (TYP)
PROPERTY LINE (TYP)
PROPERTYLINE (TYP)
INLET PROTECTIONPER BMP E3.25
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DRAINAGESWALE PER BMPE2.80 (TYP)
INSTALL PORTION OF STORMSYSTEM TO ESTABLISH EROSION
CONTROL DRAINAGE COLLECTION.SEE SHEET C300 FOR DESIGN.
SEDIMENT TRAPW/ SUMP PUMPPER BMP E3.40
PROTECT EXTREE
STORMTANK DETENTIONSYSTEM OUTLINE
SEE SHEET C311 FORDETAILS
BOTTOM OFSTORMTRAP MODULE
BOTTOM OFAGGREGATE PERIMETER
FFE = 476.80BOE = 476.13
FFE = 476.80BOE = 476.13
FFE = 476.80BOE = 476.13
(3) MOVEABLE SEDIMENT TANKS PER BMP E3.50.ROUTE CONSTRUCTION STORMWATER TO SEDIMENTTRAP. PUMP TO TANK PRIOR TO DISCHARGE TOPUBLIC SYSTEM.
PROVIDE MINIMUM OF 25,139 GALLONS
MOVE SEDIMENT TANKS ON SITE AS NECESSARY TOSUPPORT ACCESSIBILITY AND CONSTRUCTION NEEDSSO LONG AS MINIMUM VOLUME IS MAINTAINED.
PUBLIC STORM MAIN EXTENSION ANDCONCRETE PANEL RESTORATION
(INSTALLED BY ADJACENT PROJECT -SDOT# 419045)
DETENTIONFACILITY
BOE = 470.00
MAINTAIN SAFE PEDESTRIAN ACCESSALONG N 143RD STREET THROUGH
DURATION OF CONSTRUCTION. WHENWORK SHALL OCCUR IN RIGHT-OF-WAY,
PROVIDE DETOUR FOR PEDESTRIANTRAFFIC. COORDINATE TRAFFIC
CONTROL WITH THE CITY OF SEATTLE.
FFE = 476.80BOE = 476.13
BUILDING FOOTINGS WILL BE INSTALLED WITHSHORT AGGREGATE PIERS (SAP'S) WHERE DENSE
NATIVE SOILS, OR STRUCTURAL FILL, DO NOTMEET REQUIREMENTS AND RECOMMENDATIONS
FROM THE PROJECT GEOTECHNICAL ENGINEERINGREPORT. REFER TO THE STRUCTURAL PLANS FOR
ADDITIONAL INFORMATION.
UNDERGROUND UTILITY NOTE:UNDERGROUND UTILITIES ARE SHOWN IN THE APPROXIMATE LOCATION.THERE IS NO GUARANTEE THAT ALL UTILITY SERVICES ARE SHOWN, ORTHAT THE LOCATION, SIZE AND MATERIAL IS ACCURATE. THECONTRACTOR SHALL UNCOVER ALL INDICATED PIPES WHERE CROSSINGINTERFERENCES, OR CONNECTIONS OCCUR PRIOR TO TRENCHING OREXCAVATION FOR ANY PIPE OR STRUCTURES, TO DETERMINE ACTUALLOCATIONS, SIZE AND MATERIAL. THE CONTRACTOR SHALL MAKE THEAPPROPRIATE PROVISION FOR PROTECTION OF SAID FACILITIES. THECONTRACTOR SHALL NOTIFY ONE-CALL AT 8-1-1 (WASHINGTON811.COM)AND ARRANGE FOR FIELD LOCATION OF EXISTING FACILITIES PRIOR TOCONSTRUCTION.
LEGENDPROPERTY LINE
EXISTING CONTOUR
CONSTRUCTION FENCE X X
SILT FENCE ● ● ● ● ●
DRAINAGE SWALE ►►► ►►►
GENERAL TESC NOTES:
1. THE EROSION & SEDIMENT CONTROL (ESC) MEASURES SHOWN ON THISPLANS ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITECONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESCMEASURES MUST BE UPGRADED AS NEEDED FOR UNEXPECTED STORMEVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS(E.G. ADDITIONAL COVER MEASURES, PUMPING AND CONTAINMENT,RELOCATION OF DITCHES AND SILT FENCES, PERIMETER PROTECTION ETC.)
2. THESE FACILITIES MUST BE SATISFACTORILY MAINTAINED UNTIL THECONSTRUCTION AND LANDSCAPING IS COMPLETED AND THE POTENTIALFOR ONSITE EROSION HAS PASSED. THE ESC PLANS ARE TO BECONSIDERED A DYNAMIC MINIMUM GUIDELINE AND AS SUCH WILL MOSTLIKELY HAVE TO BE CONTINUALLY EVALUATED AND/OR MODIFIEDDEPENDING ON SITE CONDITIONS.
3. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION,MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESCFACILITIES IS THE RESPONSIBILITY OF THE DEVELOPER AND ESCSUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED.
4. STABILIZED CONSTRUCTION ENTRANCES MUST BE INSTALLED AT THEBEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OFTHE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEELWASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALLPAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAYDOES NOT OCCUR FOR THE DURATION OF THE PROJECT.
5. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIORTO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TOENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS,DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED.
6. THE ESC FACILITIES MUST BE INSPECTED DAILY BY THE DEVELOPER/ESCSUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPERFUNCTIONING. WRITTEN RECORDS MUST BE KEPT OF WEEKLY REVIEWSOF THE ESC FACILITIES.
7. SOILS MUST NOT REMAIN EXPOSED AND UNWORKED FOR MORE THAN 7DAYS FROM MAY 1 THROUGH SEPTEMBER 30 AND NOT MORE THAN 48HOURS FROM OCTOBER 1 AND APRIL 30. EXPOSED AND UNWORKEDSOILS MUST BE COVERED BY MULCH, SODDING, PLASTIC COVERING,JUTE-MATTING, OR AS OTHERWISE APPROVED OR REQUIRED BY THEPUBLIC WORKS CONSTRUCTION INSPECTOR.
8. THE ESC FACILITIES ON INACTIVE SITES MUST BE INSPECTED ANDMAINTAINED A MINIMUM OF ONCE A MONTH DURING THE DRY SEASON,BI-MONTHLY DURING THE WET SEASON, OR WITHIN 24 HOURSFOLLOWING A STORM EVENT.
9. AT NO TIME MAY MORE THAN 6-INCHES OF SEDIMENT BE ALLOWED TOACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS ANDCONVEYANCE LINES MUST BE CLEANED PRIOR TO PAVING AND FINALAPPROVAL. THE CLEANING OPERATION MAY NOT FLUSHSEDIMENT-LADEN WATER INTO THE DOWNSTREAM SYSTEM.
10.DUST GENERATED DURING CONSTRUCTION ACTIVITIES MUST BECONTROLLED BY WETTING DUST SOURCES SUCH AS AREAS OF EXPOSEDSOILS, WASHING TRUCK WHEELS BEFORE THEY LEAVE THE SITE, ANDINSTALLING AND MAINTAINING ROCK CONSTRUCTION ENTRANCES.CONTRACTOR MUST MECHANICALLY SWEEP STREETS DAILY WITHVACUUM SWEEPER UNLESS OTHERWISE APPROVED.
11.ANY EXCAVATED MATERIAL REMOVED FROM THE CONSTRUCTION SITEAND DEPOSITED ON PROPERTY WITHIN THE CITY LIMITS MUST BE DONE INCOMPLIANCE WITH A VALID CLEARING & GRADING PERMIT. LOCATIONSFOR THE MOBILIZATION AREA AND STOCKPILED MATERIAL MUST BEAPPROVED BY THE CLEARING AND GRADING INSPECTOR AT LEAST 24HOURS IN ADVANCE OF ANY STOCKPILING.
12.WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL ISREQUIRED, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF 2-INCHES.
13.PRIOR TO SEPTEMBER 15, ALL DISTURBED AREAS SHALL BE REVIEWED TOIDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTERRAINS. DISTURBED AREAS SHALL BE SEEDED PRIOR TO OCTOBER 1.
14.REMOVE ALL ESC MEASURES ONCE ALL WORK IS COMPLETED AND SITE ISPERMANENTLY STABILIZED.
THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUMREQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THECONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED ASNEEDED FOR UNEXPECTED STORM EVENTS AND TO ENSURE THATSEDIMENT AND SEDIMENT-LADEN WATER DO NOT LEAVE THE SITE. ANYSUCH FACILITIES INSTALLED MUST BE MAINTAINED IN PROPER OPERATINGCONDITION UNTIL ALL DISTURBED AREAS HAVE BEEN REVEGETATED OROTHERWISE DEVELOPED AND THE POTENTIAL FOR EROSION ELIMINATED.
NOTE:EARTHWORK QUANTITIES WERE CALCULATED FROM EXISTING GRADE ASIDENTIFIED ON THE TOPOGRAPHIC SURVEY PREPARED BY CORE DESIGN,DATED 5/1/2018 AND REVISED ON 6/17/19.
THE QUANTITIES SHOWN ARE PRELIMINARY ESTIMATES ONLY ANDINTENDED FOR MUNICIPAL PERMITTING AND REVIEW FEES. THECONTRACTOR SHALL IGNORE THESE QUANTITIES, THEY ARE EXCLUDEDFROM THE BID DOCUMENT INFORMATION. THESE VOLUMES SHALL NOT BEUSED BY THE CONTRACTOR AS A BASIS FOR ANY CONTRACTUALINFORMATION. THE CONTRACTOR SHALL PREPARE THEIR OWN EARTHWORKQUANTITIES BASED ON THE INFORMATION PROVIDED IN THE CONTRACTDOCUMENTS, INCLUDING BUT NOT LIMITED TO DRAWINGS,SPECIFICATIONS, AND THE GEOTECHNICAL REPORT.
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2' UTILITY EASEMENTREC. NO. 7107190140, ROS
UNDER REC. NO. 20041203900004AND BLA REC. NO. 20190321900007.
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48"
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CURB LINE
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POINT OF CONNECTION ATELECTRICAL ROOM - SEE ELECTRICALPLANS FOR CONTINUATION
(7) 5" & (5) 4"SECONDARY POWER CONDUIT
(4) 4" POWER CONDUIT(UNDER SEPARATE
UTILITY PERMIT)
CONNECT TO EXISTING SCLPOLE. CONDUIT ROUTED DOWNNORTH FACE OF POLE WITH 30
DEGREE OFFSET BELOW GRADE.
PROPOSED BUILDINGLINDEN AVENUE APARTMENTS
916 N 143RD STREETSEATTLE, WA 98133
PROPOSED 687-LATERMINAL VAULT
6" COMBINATION DOMESTIC/FIRE WATER SERVICE(UNDER SEPARATE PERMIT)SEE SHEET C311 FOR PROFILE
6" SANITARY SIDE SEWERIE=469.50SEE PLUMBING PLANS
NEW 20' CONCRETEDRIVEWAY PER COS
STD PLAN 430A
PUBLIC STORM MAIN EXTENSION AND CONCRETEPANEL RESTORATION (INSTALLED BY ADJACENTPROJECT - SDOT# 419045)
IF THE STORM MAIN EXTENSION IS ULTIMATELYNOT INSTALLED, THIS PROJECT WILL BERESPONSIBLE FOR INSTALLING A STORM MAINLINEEXTENSION ACROSS THE PROJECT FRONTAGE
6" SANITARY SIDE SEWERIE=469.50SEE PLUMBING PLANS
EXISTING BUILDING
FFE=476.80
SITE FENCE. SEEL'SCAPE PLANS (TYP)
STORM #C2 - CB TYPE II - 54 ''W/ CONTROL STRUCTUREN:270836.3536 E:1267902.4572RIM ELEV:476.00IE:471.00 12"(IN)NIE:470.70 8"(OUT)SW
UNDERGROUND UTILITY NOTE:UNDERGROUND UTILITIES ARE SHOWN IN THE APPROXIMATELOCATION. THERE IS NO GUARANTEE THAT ALL UTILITYSERVICES ARE SHOWN, OR THAT THE LOCATION, SIZE ANDMATERIAL IS ACCURATE. THE CONTRACTOR SHALL UNCOVERALL INDICATED PIPES WHERE CROSSING INTERFERENCES, ORCONNECTIONS OCCUR PRIOR TO TRENCHING OR EXCAVATIONFOR ANY PIPE OR STRUCTURES, TO DETERMINE ACTUALLOCATIONS, SIZE AND MATERIAL. THE CONTRACTOR SHALLMAKE THE APPROPRIATE PROVISION FOR PROTECTION OFSAID FACILITIES. THE CONTRACTOR SHALL NOTIFY ONE-CALLAT 8-1-1 (WASHINGTON811.COM) AND ARRANGE FOR FIELDLOCATION OF EXISTING FACILITIES PRIOR TO CONSTRUCTION.
GENERAL UTILITY NOTES:
1. TAKE SPECIAL PRECAUTIONS WITH RESPECT TO POWER, GAS,WATER AND TELECOM/DATA UTILITIES.
2. PROVIDE 18-INCH MINIMUM VERTICAL SEPARATIONBETWEEN ALL UTILITIES UNLESS OTHERWISE NOTED.
3. ALL CROSSINGS WITH SEPARATION OF LESS THAN 12-INCHESSHALL BE CONSTRUCTED WITH A 6-INCH RIGID FOAM PAD,ETHAFOAM PAD, OR EQUIVALENT.
4. COORDINATE WITH WATER DISTRICT FOR WATER SERVICESHUTOFF PRIOR TO ANY DEMOLITION ACTIVITY.
5. ALL PROPOSED SIDE SEWERS TO THE BUILDING SHALL HAVEA MINIMUM SLOPE OF 2 PERCENT.
6. UNLESS OTHERWISE NOTED, ALL STORM DRAIN PIPE SHALLBE ADS N-12 OR ASTM 3034 PVC PIPE, OR APPROVED EQUAL.ALL ROOF DRAIN PIPES SHALL BE 4” OR LARGER.
7. ALL UTILITY TRENCHES SHALL BE BACKFILLED ANDCOMPACTED TO 95 PERCENT DENSITY.
THE CONTRACTOR SHALL COORDINATE SIDEWALK CLOSURES,STREET CLOSURES AND RIGHT-OF-WAY USE PERMITS WITH THECITY OF SEATTLE DEPARTMENT OF TRANSPORTATION (SDOT)
GENERAL DRAINAGE NOTES:
1. ALL STORM LINES AND RETENTION/DETENTION AREASSHALL BE STAKED FOR GRADE AND ALIGNMENT BY ANENGINEERING OR SURVEYING FIRM CAPABLE OFPERFORMING SUCH WORK, AND CURRENTLY LICENSED INTHE STATE OF WASHINGTON TO DO SO.
2. ALL PIPE APPURTENANCES SHALL BE LAID ON A PROPERLYPREPARED FOUNDATION IN ACCORDANCE WITH WSDOT7-02.3(1) UNLESS OTHERWISE NOTED IN THE PLANS, DETAILSOR PROJECT SPECIFICATIONS. THIS SHALL INCLUDELEVELING AND COMPACTING THE TRENCH BOTTOM, THETOP OF THE FOUNDATION MATERIAL, AND ANY REQUIREDPIPE BEDDING TO A UNIFORM GRADE SO THAT THE ENTIREPIPE IS SUPPORTED BY A UNIFORMLY DENSE UNYIELDINGBASE.
3. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS ANDMANHOLES, NOT LOCATED WITHIN A TRAVELED ROADWAYOR SIDEWALK, MUST HAVE SOLID LOCKING LIDS. ALLDRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENTRETENTION/DETENTION FACILITY MUST HAVE SOLIDLOCKING LIDS.
4. SOLID LOCKING LIDS MUST BE USED FOR ALL CATCH BASINSNOT LOCATED WITHIN A GUTTER FLOWLINE AND VANEDGRATE STYLE COVERS MUST BE USED WITHIN THE GUTTERFLOWLINE.
5. ALL CONVEYANCE PIPE 6-INCHES OR GREATER IN DIAMETERMUST BE ASTM D3034 SDR 35 PVC UNLESS OTHERWISENOTED IN THE PLANS, DETAILS OR PROJECTSPECIFICATIONS.
NOTE: REFER TO LANDSCAPE PLANS FOR CONCRETE SCORINGAND PAVEMENT COLORING.
NOTE: ALL AREA DRAINS SHOWN ON PLAN SHALL BE ADSNYLOPLAST DRAIN BASIN (OR APPROVED EQUIVALENT).
NOTE: ALL TYPE I CATCH BASINS SHOWN ON PLAN SHALL BEPER WSDOT STD PLAN B-5.20-02 (OR APPROVED EQUIVALENT).
NOTE: ALL TYPE II CATCH BASINS SHOWN ON PLAN SHALL BEPER WSDOT STD PLAN B-10.20-02 (OR APPROVED EQUIVALENT).
NOTE: ALL SPOT ELEVATIONS SHOWN REFLECT FINISH GRADEELEVATIONS.
COM COM COM COM COM
PLANTER PROVIDEDAREA(SF)
PONDINGDEPTH (IN.)
A 211 6B 241 6C 282 6D 6E 171 6F 171 6G 171 6
308
NON-INFILTRATING BIORETENTION PLANTER SUMMARY:
PONDBOTTOM
(EL)475.50
REFER TO DETAILS 4 & 5 ON SHEET C310 FOR DETAILED INFORMATIONREGARDING THE NON-INFILTRATING BIORETENTION PLANTERS.