HomeMy WebLinkAboutR-4035068 ( I � 6
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STANDARD STRENGTH
FILTER FABRIC GRATE
MAINTENANCE STANDARDS
II
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Millis
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1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER
FABRIC SHALL
VWITH MSEDIMENT
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I
LLNOTBE REMOVED WATER, AND ALLSEDIMENT
SHALL
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II
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MUST BE DISPOSED OF AS FILL ON -SITE OR HAULED OFF -SITE.
-I I I i
CATCH BASIN
I
2. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE
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_
REMOVED WHEN THE SEDIMENT HAS FILLED ONE THIRD OF
II
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II II
THE AVAILABLE STORAGE. THE FILTER MEDIA FOR THE INSERT
SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
FILTER FABRIC
PROTECTION
3 FOMS
IS CRIMANYLFORMSFORBOFHPROTECTOIONCATCH
BASINAPROTECTION.MAINTENANUNLIKETHAT
FAIL GRADUALLY, CATCH BASIN PROTECTION WILL FAIL
NOTE: ONLY TO BE
USED WHERE
SUDDENLY AND COMPLETELY IF NOT MAINTAINED PROPERLY.
PONDING OF WATER
ABOVE THE
CATCH BASIN WILL
NOT CAUSE
TRAFFIC PROBLEMS
AND WHERE
OVERFLOW WILL NOT
RESULT IN
EROSION OF SLOPES.
/- CATCH BASIN GRATE
OVERFLOW SOLID
WALLS
MEDI
FORTER DEWATERING
POROUS'
BOTTOM
CATCH BASIN INSERT
NOTE: THIS DETAIL IS ONLY
SCHEMATIC. ANY INSERT IS
ALLOWED THAT HAS A MIN.
0.5 C.F. OF STORAGE, THE
MEANS TO DEWATER THE STORED
SEDIMENT, AN OVERFLOW, AND
CAN BE EASILY MAINTAINED.
FILTER FABRIC SKIRT
SECURED WITH GRATE-
CATCH BASIN
GRATE
POLYETHYLENE PROVIDE ADEQUATE
STRAPPING
PERFORATED POLYETHYLENE —
DRAINAGE TUBING, DIAMETER —UWATERTIGHT
CORRUGAI
MIN_ 2" LARGER THAN -METAL RIB
DEWATERING ORIFICE_ —
TUBING SHALL COMPLY -
WITH ASTM F667 AND —
AASHTO M294. -
--TACK WELD
'
"s RETRIEVAL
STRAP
HE
FILTER FABRIC INSERT
(PSE M I D 9995728 )
OD OVERFLOW _
COLLECTED ( IIIf
SEDIMENT _II�III=
ALTERNATE
I=
CATCH BASIN INSERT I
CATCH BASIN
SEDIMENT CONTROL
_T F19- -1
Arm
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FOR INSTALLATION, SEE TECHNIQUES FOR
TEMPORARY EROSION AND SEDIMENT CONTROL,
PSE STANDARD 0150.3200
NTS
3.5' MIN.
DEWATERING ORIFICE, SCHEDULE
40 STEEL STUB MIN.
DIAMETER AS PER CALCULATIONS
I 6` MIN. C---
18" MIN' ALTERNATIVELY, METAL STAKES
AND WIRE MAY BE USED TO
CONCRETE BASE PREVENT FLOTATION
�--- 2X RISER DIA. MIN.
SEDIMENT POND
RISER DETAIL 2
RISER PIPE
(PRINCIPAL SPILLWAY)
OPEN AT TOP WITH
TRASH RACK
PER FIG. 4.4.4�
DEWATERING DEVICE
(SEE RISER DETAIL)
1.5'
_I i I-i I I - I I I -III -I I I� I
WIRE —BACKED SILT FENCE, DEWATERING
STAKED HAYBALES WRAPPED ORIFICE
WITH FILTER FABRIC, OR
EQUIVALENT DIVIDER
DESIGN AND INSTALLATION SPECIFICATIONS
1. THE GEOTEXTILE USED MUST MEET THE STANDARDS LISTED BELOW.
A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS
MUST BE AVAILABLE ON SITE.
AIDS (ASTM D-4751) = 30-100 SIEVE SIZE (0.60-0.15 mm) FOR SLIT FILM
50-100 SIEVE SIZE (0.30-0.15 mm) FOR OTHER FABRICS
WATER PERMITTIVITY (ASTM D-4491) = 0.02 SEC' MIN.
JOINTS IN FILTER FABRIC SHALL BE SPLICED
GRAB TENSILE STRENGTH (ASTM D-4632) = 180 LBS MIN. FOR EXTRA STRENGTH FABRIC AT POSTS. USE STAPLES, WIRE RINGS, OR
100 LBS MIN. FOR STANDARD STRENGTH FABRIC EQUIVALENT TO ATTACH FABRIC TO POSTS.
GRAB TENSILE ELONGATION (ASTM D-4632) = 30% MAX.
ULTRAVIOLET RESISTANCE (ASTM D-4355) = 70% MIN.
2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE.
WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC
IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
3. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL BE NO STEEPER THAN 2H:1V.
�2J
CREST OF 6' MIN. WIDTH
EMERGENCY SPILLWAY
_ 1' MIN. EMBANKMENT COMPACTED 95%.
PERVIOUS MATERIALS SUCH AS
GRAVEL OR CLEAN SAND SHALL
NOT BE USED.
____- �_
----------------
�'____ � _ __
------ ----- -- - 9f
II I I I I I I-
DISCHARGE TO STABILIZED
CONCRETE BASE CONVEYANCE, OUTLET OR
(SEE RISER DETAIL) LEVEL SPREADER
SEDIMENT POND
SECTION rA
1
2 "x2 " BY 14 GA WIRE OR
EQUIVALENT, IF STANDARD
STRENGTH FABRIC USED.
FILTER
FABRIC
n WAA I ----MIN. 4"x4" TRENCH----' L
MAINTENANCE STANDARDS
1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY BACKFILL TRENCH
POST SPACING MAY BE WITH NATIVE SOIL OR
2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND INCREASED TO 8' IF WIRE 314"_1.5" WASHED GRAVEL
CONVEYED TO A SEDIMENT TRAP OR POND. BACKING IS USED
3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING 2"x4" WOOD POSTS. STEEL FENCE
AND ACTING AS A BARRIER TO FLOW AND THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL TO NOTE: FILTER FABRIC FENCES POSTS, REBAR, OR EQUIVALENT
THE FENCE. IF THIS OCCURS, REPLACE THE FENCE AND/OR REMOVE THE TRAPPED SEDIMENT. SHALL BE INSTALLED ALONG
CONTOUR WHENEVER POSSIBLE
4. SEDIMENT MUST BE REMOVED WHEN IT IS 6 HIGH.
5. IF THE FILTER FABRIC HAS DETERIORATED DUE TO THE ULTRAVIOLET BREAKDOWN, IT SHALL BE
REPLACED.
SILT FENCE DESIGN AND INSTALLATION SPECIFICATIONS
AND MAINTENANCE STANDARDS
Nv
c1w
2x2 WOOD POST
FENCING i
MATERIAL
F-
6'_0„
MAX
HIGH DENSITY POLYETHYLENE OR
POLYPROPYLENE MESH, AND SHALL
BE UV RESISTANT, ORANGE COLOR
%)rf1T T e%AI mne.T
ELEVATION
FENCE ON SLOPE
NOTES
1. POST SHALL HAVE SUFFICIENT STRENGTH AND DURABILITY
TO SUPPORT THE FENCE THROUGH THE LIFE OF THE PROJECT.
STAPLE TOP TIE
SELF-LOCKING TIE NYLON
6/6 (MIN. GRADE),
50# MIN -TENSILE STRENGTH, STEEL T-BAR POST
UV STABILIZED.
SELF-LOCKING TIE -
FENCING NYLON 6/6 (MIN. GRADE),
MATERIAL 50# MIN. TENSILE STRENGTH,
UV STABILIZED
I ( cD �-
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a /
ENVIRONMENTALLY
SENSITIVE AREA
BOUNDARY
STEEL T-BAR POST
TYPICAL SECTION A
HIGH VISIBILITY FENCE DETAIL rY�3
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1 2
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1 I I I I � I
8 7 6 5 4
$FILE$
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
DEVELOPMENT ENGINEERING JO�%
jtjohnson 05/09/2017 ll
SURFACE WATER UTILITY
rstraka 05/09/2017 :01
R-403506
OEFOoE yoGo CALL BEFORE'
�c YOU DIG
Call: TOLL FREE
1-800-424-5555
REVISION DESCRIPTION: WO NUMBER: 111022315 TEMPORARY EROSION/SEDIMENT CONTROL
PERMIT SUBMITTAL
49527
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CAD
ENGINEER
REVIEWED
APPROVED
3
NOTES AND DETAILS
TALBOT HILL SUBSTATION
RR DATE ( M/D/Y ) PUGET SUBSTATION DRAWING NO REV NO
J . P4� 5L) n IG % I� % �� , SOUNDENGINEERING ENER
D DEPARTMENT - 18732 0
•US �� �� l6 SHEET: 3 OF 3
SCALE: NONE CLASS: S I TE FILE NO:
J wet,3 CADD N0: $$DGN$$ CODE: TAL
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