HomeMy WebLinkAboutR-409106n
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NE 9/4 SECTION 14, TOWNSHIP 23 N, RANGE 5 E, W.M.
MAPLE HIGHLANDS
INTERLAKE ADD. NO. 1
83 OF PLATS, PGS. 96-97
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CONSTRUCTION SEQUENCE:
1. PRE -CONSTRUCTION MEETING.
2. POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE
CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN).
J. FLAG OR FENCE CLEARING LIMITS AND PROVIDE TREE PROTECTION.
4. INSTALL CATCH BASIN PROTECTION IF REQUIRED.
5. GRADE AND INSTALL CONSTRUCTION ENTRANCE(S).
6. CONSTRUCT OUTFALL CONVEYANCE SYSTEM FROM C87 TO PROPOSED OUTFALL.
7. INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.).
8. CONSTRUCT DETENTION VAULT AND SEDIMENT TRAPS IF REQUIRED.
9. GRADE AND STABILIZE CONSTRUCTION ROADS.
10. CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE
DRAINS, ETC.) SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT
DEVEL OPMEN T.
11. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH APPENDIX D
OF THE SURFACE WATER DESIGN MANUAL AND MANUFACTURER'S
RECOMMENDA TIONS.
12. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO
THAT AS SITE CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL IS
ALWAYS IN ACCORDANCE WITH THE CI TY S EROSION AND SEDIMENT CONTROL
STANDARDS.
13. COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS
DURING THE DRY SEASON OR TWO DAYS DURING THE WET SEASON WITH STRAW,
WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR EQUIVALENT.
14. STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS.
15. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS.
16. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE
STABILIZED AND BMPS REMOVED IF APPROPRIATE.
Call 2 Working Days Before You Dig
811
Utilities Underground Location Center
(ID,MT,ND,OR,WA)
1
NO TES.-
1. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED AS DEEMED
NECESSARY BY COR INSPECTOR.
2. COORDINATE WITH NEIGHBORING PROPERTY OWNERS THE REMOVAL OF
FENCES AND STRUCTURES.
3. BAKER TANKS (AS NECESSARY) WILL BE UTILIZED.
4. MEASURES WILL BE PROVIDED TO ENSURE THAT NO RUNOFF FROM THE
SITE SHALL GO TO ADJACENT PROPERTIES EITHER DURING OR AFTER
CONSTRUCTION.
5. SILT FENCE WILL BE PROVIDED AT ALL DOWN SLOPES.
6. GEOTECHNICAL ANALYSIS INDICATES PERCHED GROUNDWATER IS LIKELY
PRESENT ACROSS MUCH OF THE SITE. IF GROUNDWATER IS ENCOUNTERED
DURING EXCAVATION, THEN DE -WATERING MEASURES ARE TO BE UTILIZED
AS NEEDED PER GEOTECHNICAL RECOMMENDATIONS.
7 DOE CONSTRUCTION STORMWA TER GENERAL PERMIT NUMBER: XXXXXXXXX
ARBORIST NOTE:
ANY CONSTRUCTION DONE WITHIN AN OFFSITE TREE DRIPLINE MUST BE DONE
UNDER ARBORIST SUPERVISION.
D.R. STRONG
CONSUL TING ENGINEERS
ENGINEERS PLANNERS SURVEYORS
620 - 7Ih AVENUE KIRKLAND, WA 98033
O 425.827.3063 F 425.827.2423
CLEARING LIMITS (TYP.)
TESC LEGEND T
CL CONSTRUCTION LIMITS O
SF REINFORCED SILT FENCE Q
O
O�O O
0 0 0 0 a
STABILIZED CONSTRUCTION ENTRANCE T
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x —0—
C DUST CONTROL
NB NETS AND BLANKETS
MU MULCHING, MATTING, & COMPOST BLANKETS
OINLET PROTECTION
PS PERMANENT SEEDING AND PLANTING
SS STREET SWEEPING & VACUUMING
• • • --- 30— INTERCEPTOR SCALE WITH ROCK CHECK DAM co
EVERY 50' co
12" TEMPORARY CULVERT O
O
RIP RAP PAD O
O
i
—0 0 0 0 TREE PROTECTION FENCE
T
C1 EXISTING STRUCTURE TO BE REMOVED Q
1 1 VIABLE ON -SITE TREES TO BE RETAINED
VIABLE ON -SITE TREES TO BE REMOVED
NON -VIABLE TREES TO BE REMOVED
(PER ARBORIST REPORT)
VIABLE OFFSITE TREES TO BE RETAINED
VIABLE OFFSITE TREES TO BE REMOVED
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30' UTILITY EASEMENT f
REC. NO. 2021 Q406000762
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SEE SHEET C6
1 CITY COMMENTS 11.12.19 YLP 02.14.201 YLP SURVEYED: SCALE:
DJC VERTICAL: NAVD 1988
2 INTAKE COMMENTS YLP 06.16.21 YAP DESIGNED: AS NOTED HORIZONTAL: NAD 1983/1991
3 CITY COMMENTS 07.27.21 1 YLP 108.13.21 YLP I YLP
DRAWN:
GLB ONE INCH DATUM
CHECKED: AT FULL SCALE DATUM
YLP IF NOT ONE INCH
N 0. REVISION BY DATE AP P R APPROVED: SCALE ACCORDINGLY
YLP
SEDIMENT POND SIZING SUMMARY. -
THE SEDIMENT POND WAS SIZED USING THE REQUIREMENTS STATED
IN APPENDIX 'D' OF THE 2017 CITY OF RENTON SURFACE WATER
DESIGN MANUAL SECTION D.2.1.5.2 WHICH REQUIRES 2,080 S.F. OF
SURFACE AREA PER CFS OF INFLOW WHICH WAS CALCULATED USING
WWHM2012 (15 MIN TIME STEPS) TO ANALYZE THE DEVELOPED SITE
CONDITIONS.
POND (CATCHMENT AREA: 4.65 AC.)
10-YEAR PEAK FLOW RATE...................2.1585 CFS
REQUIRED SURFACE AREA ..................... 4,490 S.F.
PROVIDED SURFACE AREA.....................8,848 S.F. (VAULT AREA)
DEWA TER/NG NO TE:
DEWATERING IS NOT ANTICIPATED FOR THE SITE. SHOULD
DEWATERING CONTROL BE NECESSARY, CONTRACTOR SHALL APPLY
FOR A CONSTRUCTION DEWATERING PERMIT WITH BOTH KING
COUNTY AND CITY OF RENTON IN ORDER TO DISCHARGE TO THE
SANITARY SEWER SYSTEM IN 162ND AVENUE SE.
NORTH
GRAPHIC SCALE
0 20 40 80
1 INCH = 40 FT.
C TY OF
RENTON
U'R
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Planning/Building/Public Works Dept.
R-409106
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
0
SURFACE WATER UTILITY Z
krevans 10/01 /2021 Q
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DEVELOPMENT ENGINEERING _V
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njanders 10/01 /2021 _
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DATE: J
MAPLE HIGHLANDS 09.05.19
CLEARING AND TESC PLAN FIELDBOOK:
PAGE:
DRAWING
16210 SE 134TH STREET C 6
RENTON, WASHINGTON 98059 SHEET 6 OF41
DRS PROJECT NO. 17020