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TDE IN SHEETING IN
4" I14" MIN. TRENCH
NOTES:
1- GONDTIQNS QF USE
1.1. PLASTIC COVERING MAY BE USED ON DISTURBED AREAS THAT REQUIRE COVER MEASURES FOR LESS THAN 3D DAYS.
1J, PLASTC IS PARTICULARLY USEFUL FOR PROTECTING CUT AND FILL SLOPES AND STOCKPILES
1.3 CLEAR PLASTIC SHEETING MAY BE USED OVER NEWLY -SEEDED AREAS TO CREATE A GREENHOUSE EFFECT AND ENCOURAGE GRASS GROWTH
CLEAR PLASTIC SHOULD NOT BE USED FOR THIS PURPOSE DURING THE 5UMMER MONTHS.
1.4. THIS METHOD SHALL NOT BE USED UPSLOPE OF AREAS THAT MIGHT BE ADVERSELY IMPACTED BY RUNOFF. SUCH AREAS INCLUDE STEEP AND
UNSTABLE SLOPES.
L DESIGN AND INSTALLATION SPECIFICATIONS
2.1. PLASTIC SHEETING SHOULD HAVE A MINIMUM THICKNESS OF 0.06 MILLIMETERS.
2.2 IF EROSION AT THE TOE OF A SLOPE IS LIKELY, A GRAVEL BERM, RFPRAP, OR OTHER SUITABLE PROTECTION SMALL 9E INSTALLED AT THE TOE
OF THE SLOPE IN ORDER TO REDUCE THE VELOCITY OF RUNOFF.
2.3. TIRES, SAND BAGS, OR EQUIVALENT MAY BE USED TO WEIGHT PLASTIC.
'2 C SEAMS BETWEEN SHEETS MUST OVERLAP A MINIMUM OF 12INCHE9 AND BE WEIGHTED OR TAPED,
3. MAINTENANCE STANDARDS
3TORN SHEETS MUST HE REPLACED AND OPEN SEAMS REPAIRED,
i". IF THE PLASTIC BEGINS TO DETERIORATE DUE TO ULTRAVIOLET RADJATIDN. IT MU$T BE COMPLETELY REMOVED AND REPLACED.
3,3. WHEN THE PLASTID IS NO LONGER NEEDED, FT SHALL BE COMPLETELY REMOVED.
UNLESS a1'HERvnSE NOTEpr DRAW LNG IS NorYJT scALI (His}
. PU$LEC WORKS
Rts 571a. PPLAN - 213.30
- r
Ra
DEPARTMENT PLASTIC COVERING GAZ 9/28/2a18
Iwi. ur,u ten."siiva :i,rl
EROSION AND SEDIMENT CONTROL (ESCI STANDARD PLAN NOTES:
THE FOLLOWING ISA. LISTING OF GENERAL. NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SET. ALL THE NOTES ON THE
UST 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 RENUMHR NOR EDIT THE REMAINING NOTES. IF AODTIONAL NOTES ARE NEEDED FOR SPECIFIC
ASPECTS, THEY SHALL BE ADDED AFTER THE ESC STANDARD PLAN NOTES.
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING SHRILL BE HELD AMONG THE CITY OF RENTON, HEREBY
REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR.
2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY {ECOLOGY} CONSTRUCTION STORMWATER GENERAL
PERMIT, IF IT 1S REQUIiRED FOR THE PROJECT THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROV11DEDTO ECOLOGY
ASSOCIATED WITH THE CON37RUCDON STORMWATER GENERAL PERMIT
3. THE ESG PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION
COMMENCEMENT TO POST -PROJECT CLEANUP IN ORDER TO FULFILL PROJECT ESC REQUIRLMENTS-
4. THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE AREAS AND THEIR BUFFERS, AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS
PRESCRIBER ON THE PLANS) SHALL RE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY OF
RENTON SURFACE WATER DESIGN MANUAL (RENTON SWUM) PRIOR TO THE START OF CONSTRUCTION- DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE
BEYOND THE CLEARING UMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLJCANTIESC SUPERVISOR FOR THE DURATION OF
GONFRUGTION.
5. STABILIZED CONSTRUCTION ENTRANCES SHALL 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. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL
BE CLEANED THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING
WATERS OF THE STATE-
6. WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFFSITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. PC NOT WASH QI-T CONCRETE
TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR OPEN DITCHES. ON -SITE DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE
WASHOUTAREAS.
7. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AN04OR CONSTRUCTION TO PREVENT TRANSPORTATION OF
SEDIMENT TO SURFACE WATER. DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL
SUCH TIME THAT CLEARING ANWOR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON•SITP- EROSION HAS PASSED. ALL ESC BMPS SHALL BE REMOVED AFTER
CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STAIMUZED TO ENSURE POTENTIAL FOR CWSITE EROSION DOES NOT EXIST. THE IMPLEMENTATION,
MAINTENANCE, REPLACEMENT, ENHANCEMENT. AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILTY OF THE APPLICANT.
S. ANY HAZARDOUS MATERIALS OR LJig1JID PRODUCTS THAT HAVE TH3= POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY
9. THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUEREMENTSTO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION
PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE NECESSARY TO ENSURE
COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE
APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAYBE CREATED BY THE ACTIVITIES AND TO PROVJDEADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM
REQUIREMENTS, AS MAY BE NEEDED -TO PROTECT ADJACENT PROPERTIES ANU WATER DUALITY OF THE RECflVING DRAINAGE SYSTEM-
11). APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN. SIZE NOR LOCATION OF PIPES, RESTRICTORE,
CHANNELS, OR STDRMWATER FACILITIES.
11. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF S70RMWATER FACILITIES SHALL BE SUBMFTTED TO THE CITY FOR REVIEW AND APPROVAL
12. ANY AREAS OF EXPOSED SOILS. INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST
THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE ORY SEASON IMAM 1ST THROUGH SEPTEMBER BOTH) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED
ESC COVER METHODS (E.G.. SEEDING. MULCHING. PLASTIC COVERING. ETC.) IN CONFORMANCE WITH APPENDIX O OF THE RENTON SWOM.
13. WET SEASON ESC RECUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 30TH, UNLESS OTHERWISE APPROVED BY THE CITY.
14. ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7} DAYS
15. THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT.
INSPECTION AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY
15. BEFORE COMMENCEUENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARO PLAN 21g.30 SHALT BE PROVIDED FOR ALL STORM
DRAIN INLETS DOWNSLOPE AHD WffHIN 6rM FEET OF A 01STUREEO OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED
TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING.
CONDITION.
17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 213OF THE CAPACITY OF THE CATCH BASIN SUMP ALL CATCH BASINS AND CONVEYANCE LANES SHALL BE
CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM -
III. ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORNTY SETTUNJ, BASIN SHALL BE MODIFIED WITH THE W ECESSARY ESC BMPS AND SHALL
PROVIDE AQEpUATE STORAGE CAPACITY. IF THE TEMPORARY FAGILFTY I$ TO ULTIMATELY FUNCTION A$ AN INFILTRATION 5Y5TEM IN ITS PERMANENT STATE, THE
TEMPORARY FACILITY SHALL BE ROUGH GRADED SD THAT THE 84TTOM AND SIPES ARE AT LEAST T1fRE-E FEET ABOVE THE FINAL GRAPIE: OF THE PERMANENT
FAC ILITY,
19. AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING STORMWATER FACILITIES OR ONSITE BMPS (AMENDED SOILS, BIORETENTION. PERMEABLE PAVEMENT.
ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS 70 AVOID SE DIMENTA71ON AND COMPACTION DURING CONSTRUCTION.
2D. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER CST). ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH DIVES SHALL BE SODDED DR
SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON.
AN FXF41BIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREA.. TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW.
21. PRIOR TO FLNAL CONSTRUCTION ACCEPTANCF, THE PROJECT SITE $HALL BE STABILIZED TO PREVENT SEDIMENT-LADFN WATER FROM LEAVING THE PROJECT S€TE.
ALL ESG BMPS SHALL IRE RFMOVEQ. AND STORMWATFR CONVEYANCE SYSTEMS. FACILITIES. AND ON -SITE BMPS SHALL SE RESTORED TO THEIR FULLY
FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED AT A MINIMUM,
DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH
WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST.
22 ROCKERJES ARE CONSIDERED TO BE A METHOD OF BANK STABIL17ATION AND EROSION CONTROL ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS
RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CrTY STANDARDS. ROCKERIES OUTSIDE OF
ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED 1N ACCORDANCE WFTH THE INTERNATIONAL BUILDING ODDE,
V NLE55 RT'HER WISL kDTE ❑, ENiAW LNG IS NOT T4 5[ALE INtSI
STD. PLAN - 268,40
• PUBLIC WORKS EROSION AND SEDIMENT CONTROL °
DEPARTMENT STANDARD PLAN NOTES GAZ 9/28/2018 1
P41L W AslkVnlir.iiur DATE
INFLOW
KEY DIVIDER INTO SLOPE TO
PREVENT FLOW AROUND AIDES
_ PflND LENGTH {3 TO 6 TIM
THE MAY- POND WIDTH)
SILT FENCE OR
EQUIVALENT DIVIDER
RISER
PIPE -
RISER PIPE IPRINCIPAL SPILLWAY} -
OPEN AT TOP WITH TRASH RACK
DEWATERING DEVICE
ISEE RISER DETAIL.
'�,W1/`• �S STD. PLAN 216.101
T
3.5'
WERE -BACKED SILT FENCE, STAKED MIN
HAY BALES WRAPPED WTH FILTER
FABRIC. OR EQUIVALENT DIVIDER
\f ' 6 /
11
' DEWATERING OREFFGE
CONCRETEBASE
ASBUILT TESC NOTES AND DETAILS
OF
DALPA Y SHORT PLAT
A
PORTION OF
THE N.E. 1/4 OF THE S.E. 1/4 OF
SECTION
4, TOWNSHIP
23
N., RANGE 5
E., W.M. CITY OF RENTON, KING
COUNTY,
WASHINGTON
CREST OF
EMERGENCY
SPILLWAY -
t A •. .
12,
EMERGENCY
OVERFLOW
SPILLWAY
DISCHARGE TO STABILIZED
CONVEYANCE. OUTLET, OR
LEVEL SPREADER
B'MIN. � 12"MIN.
T EMBANKMENT COMPACTED 95%.
PERVIOUS MATERIALS SUCH AS GRAVEL
OR CLEAN SAND SHALL NOT BE USED
DISCHARGE TO STABILIZED
CONVEYANCE, OUTLET. OR
LEVEL SPREADER
NOTES;
1. CONDITION OF USE
1 ; A SEDIMENT POND SHALL BE USED WHERE THE COHTRIBLTI ING DRAINAGE AREA IS S ACRES OR MORE.
2. DESIGN AND INSTALLATION SPEC rRCATIONS
21 THE POND SHALL BE DIVIDEO INTO TWO fiouGHLY EQUAL VOLUME CELLS BY A PERMEABLE DIVIDER THAT WILL REDUCE TURBULENCE WlPILE ALLOWING
MOVEMENT OF WATER BETWEEN CELLS. THE DIVIDER SHALL BE AT LEAST ONE HALF OF THE HEIGHT OF THE RISER. WIRE - BACNEa 2-70 3 FOOT HIGH, EXTRA
STRENGTH FILTER FABRIC SUPPORTED BY TREATED 4"X4"a MAYBE USED AS A DIVIDER, ALTERNATIVELY, STAKED STRAW BALES WRAPPED WITH FILTER
FABRIC MAY BE USED.
22. EF THE POND IS MORE THAN 6 FEET DEEP, A DIFFERENT MECHANISM MUST BE PROPOSED.
2.3. TO AID IN OFTERMINING SEDIMENT DEPTH, ONE -FOOT INTERVALS SHALL BE PROMINENTLY MARKEO ON THE RISER.
3. MAINTENANCE STANDARDS
3.1. SEDIMENT SHALL BE REMOVED FROM THE POND WHEN FF REACHES 1 FODT iN DEPTH,
3.2 ANY DAMAGES TO THE POND EMBANKMENTS OR SLOPES SHALL BE REPAIRED.
uNLU5 al HERWISE NOTTb. DRAWING 1S Nat M SCALE (NT5I
STD. PLAN - 21640
a PUBLIC WORKS SEDIMENT POND PLAN VIEW AND PPROVE11-
+A1 DEPARTMENT CROSS SECTIONS GAZ 9/28/2018
.I. e�i�.• DATE
PROVIDE ADEQUATE STRAPPING
POLYETHYLENE CAP -
PERFORATED POLYETHYLENE DRAINAGE
TUBING. DIAMETER 2" MIN. LARGER THAN CORRUGATED
DEWATERING ORIFICE TUBING SHALL METAL RISER
COMPLY WITH ASTM E667 AND AASHTQ M294
S.5' MIN.
WATERTIGHT OC
r TACK WELD
DEWATERING ORIFICE. SCH AO STEEL STUD, MIN. S- MIN
DIAMETER AS PER CALCULATIONS IN SECTION 0.2.1.5.2OF I - - -
THE CITY OF RENTON SURFACE WATER DESIGN MANUAL L a
d �
d y 18, MIN
CONCRETE IJASE -
(ALTERNA PVELY, METAL STAKES AND WIRE
MAY BE USED TO PREVENT FLOTATION}
a
n r d n
F� 2 x RISER DIA MIN. �-
NOTES:
1. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
UNLESS 01HERWI5E NOTED, pW4WING 15 NOt TO SCALE INT5)
STD. PLAN - 216,10
a PUBLIC WORKS SEDIMENT POND RISER DETAIL PPR D GAZ
DEPARTMENT 9/28/2018
�11
rank wars aemnimam, DATE
BACKFILL SWALE W/4-6" QUARRY SPALLS
IN ROAD AREAS.
-III III III O O O O -�� III III III-
2.
I I�
1' MIN.
TEMPORARY ROAD X-ING SWALE
NOT TO SCALE
BENCHMARKS:
FOUND 1.5" BRASS DISK WITH 2" BRASS DISK WITH PUNCH MARK
PUNCH MARK IN CASE AT UNION IN CASE AT THE INTERSECTION OF
AVENUE NORTHEAST AND NE 19TH NORTHEAST 19TH STREET AND 1 ASBUILT
STREET, KNOWN AS CITY OF DUVALL, KNOWN AS CITY OF
RENTON CONTROL POINT #716 RENTON CONTROL POINT #1996 N0. REVISION
SURVEYED:
TSL
DESIGNED:
DSC
DRAWN:
DSC
EN 11/19/21 DD CHECKED:
DD
BY DATE APPR APPROVED:
DD
SCALE:
N/A
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
VERTICAL: NAVD 1988
HORIZONTAL: NAD 1983/1991
DATUM
Y MAX
DRAINAGE GRATE TRIM
GRATE FRAME _
- OVERFLOW BYPASS
Y
BELOW INLET GRATE DEVICE
SEDIMENT AND DEBRIS
FILTERED
WATER
SECTION VIEW
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (1YP.)
'I c
li
OVERFLOW BYPASS (TYPJ
BELOW INLET GRATE DEVICE
ISOMETRIC VIEW
NOTES:
1, PROTECTION SHALL_ BE PROVIDED FOR ALL STORM DRAIN INLETS DOW USLOPE AND WITHIN 50D FEET OF A DISTURBED OR
COTISTRUCTION AREA, UNL€SS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP.
2, INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3, THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4. SIZE THE BELOW INLET GRATE DEVICE MIGOI FOR THE STORMWATER STRUCTURE IT WILL SERVICE
B. THE B1GD SHALL HAVE A BUILT-IN MIG3f-FLOW RELIEF SYSTEM (OVERFLOW BYPASS).
B, THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL
7, PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION "1.W15),
6, ANY SEDIMENT 1N THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE
STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
UNL155 IQTHERWI5E NOTED, DRAWING 15 NOT 10 5TALf ANTS)
STD. PLAN - 216.30
• f PUBLIC WORKS APP E❑:
DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018 1
...... DATE
2
2 MAX
LEVEL BOTTOM
1
1.2• MIN.
2' MIN.
-• SWALE SPACING DEPENDS ON SLOPE GRADIENT -I
NOTES:
1, CONDITIONS OF USE
1.1. REQUIRED AT-
1 1-1. THE TDP OF ALL SLOPES IN EXCESS OF 3H:IV AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.12. AT INTERNALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELOW.
AVERAGE SLOPE
SLOPE PERCENT
FLOW PATH LENGTH
2RH;1V(OR LESS)
�_5%
390 FEET
(10 TO 20)H:IV
5-1096
2(M FEET
I4 TO TO}H iv
1&25%
10D FEET
i2 TO AN-1V
25-SODS
5V FEET
Z. DESIGN AND INSTALLATKM 9PECIFK:ATIONS
2:.1. FOR SLOFj=S STEEPER THAN 2H;1V WITH MORE THAN 19 FEETOF VERTICAL RELIEF Bi=NGHES MAY BE CONSTRUCTED OR CLOSFR SPACED
INTERCEPTOR SWALES MAY BE USED. THE DESIRED MEASURE MUST SE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY
RUNOFF TO A SEDIMENT POND OR TRAP.
2:.2. CONSTRUCTION TRAFFIC OVER TEMPORARY SWAL£S SHALL 9E MINIMIZED.
S. MAINTENANCE STANDARDS
3.1. DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED rMMEDIATELY.
3.2. IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY ANDAQR FREQUENCY OF THE SWALES SHALL BE INCREASED.
UNLE5$ OTHERWIRE NOTED, DRAWING 15 "W Ta SCALE INT5I
STD, PLAN - 217,10
URDEPARTMENT PUBLIC WORKS INTERCEPTOR SWALE PPR ❑: GAS 9/28/2018 I
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• CITY OF
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RENTON
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IN COMPLIANCE WITH CITY OF RENTON STANDARDS
ASBUILT TESC NOTES AND DETAILS
DALPAY SHORT PLAT
DALPAY PROPERTIES, LLC.
4033 N.E. SUNSET BOULEVARD
RENTON, WA 98059
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DATE:
1 1 /19/2021
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