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FILTER FABRIC MIRAFI IOOX OR EQUIV. ---2 2FA 14 GA.
( / WIRE E FABRIC
60" WIDE ROLLS). USE STAPLES OR WIRE / OR EQUAL (TYP)
RING TO ATTACH FABRIC TO WIRE (TYP)
BURY BOTTOM OF FABRIC
U MATERIAL IN 4 "x 4" TRENCH U
_ 6' MAX.—
2 "x 4" WOOD POSTS, STANDARD OR BETTER
GRADE OR EQUAL, M 6' O.C.
ALTERNATE: STEEL FENCE POSTS
++ POST SPACING MAY BE INCREASED
TO 8' IF WIRE BACKING IS USED
FILTER FABRIC FENCE NOTES:
a
G= -a
MIN
PROVIDE 3/4" - 11/2" DIA.-
WASHED GRAVEL BACKFILL WITH
NATIVE SOIL
SIDE VIEW
I. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO
AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY
AT A SUPPORT POST, WITH A MINIMUM 6 -INCH OVERLAP AND BOTH ENDS SECURELY FASTENED TO THE POST.
2. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS (WHERE FEASIBLE). THE FENCE
POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM
OF 30 INCHES),
3. A TRENCH SHALL BE EXCAVATED, ROUGHLY 4 INCHES WIDE AND 4 INCHES DEEP, UPSLOPE AND ADJACENT TO
THE WOOD POST TO ALLOW THE FILTER FABRIC TO BE BURIED,
4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED
SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY -DUTY WIRE STAPLES AT LEAST I INCH LONG,
THE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL
NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE.
5, THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF
THE FABRIC SHALL BE EXTENDED INTO THE TRENCH, THE FABRIC SHALL NOT EXTEND MORE THAN 30 INCHES
ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES,
6. WHEN EXTRA- STRENGTH FILTER FABRIC AND CLOSER POST SPACING ARE USED, THE WIRE MESH SUPPORT
FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO
THE POSTS WITH ALL OTHER PROVISIONS OF STANDARD NOTE 5 APPLYING.
1. THE TRENCH SHALL BE BACKFILLED WITH 3/4 -INCH MINIMUM DIAMETER WASHED GRAVEL.
8. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT
BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED.
9. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY
DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY.
FILTER FABRIC FENCE DETAIL
NTS
DROP INLET WITH GRATE
FILTER FABRIC UNDER
GRATING
RUNOFF WATER
WITH SEDIMENT
FILTER FABRIC UNDER
GRATING
PROVIDE AT ALL CATCH BASINS DRAINING AREA AFFECTED BY WORK,
CB PROTECTION DETAIL
NTS
TOP OF FLOW LINE
DITCH
SILT FENCE
I
1 I
CULVERT- -
I I
i
NOTES
PLACE SILT FENCE OR FILTER BAGS IN
DITCH FLOW LINE TO PREVENT SEDIMENT
AND DEBRIS FROM ENTERING THE CON-
VEYANCE SYSTEM.
INLET /OUTLET PROTECTION
NTS
Roth Hill, LLC Tel 425.869.9448 www.rothhill.com
11130 NE 33rd Place, Suite 200 Bellevue, WA 98004
W
SAND BAGS MUST COMPLETELY COVER
THE BOTTOM AND SIDES OF THE DITCH
r6 "MIN_ 1. APPROVAL OF THIS TEMPORARY EROSION /SEDIMENTATION CONTROL (TESC)
PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR
DRAINAGE DESIGN (E.G. SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS,
-- 24"Mw. CHANNELS, RETENTION FACILITIES, UTILITIES, ETC.)
` -" " -- 2. CONTRACTOR REQUIRED TO SUBMIT TESC AND DEWATERING PLAN TO OWNER
- - - -- --- AND ENGINEER FOR REVIEW PRIOR TO CONSTRUCTION,
CROSS SECTION
L= DISTANCE SUCH THAT POINTS A & B ARE OF
EQUAL ELEVATION.
CHECK DAM DETAIL
NTS
SAND
3. CONTRACTOR AND AN ON -SITE REPRESENTATIVE OF OWNER WILL REVIEW THE
INSTALLATION, MAINTENANCE AND PERFORMANCE OF THE TESC MEASURES
SHOWN ON THE APPROVED PLANS. THE TESC OBSERVER OR PERMITTING
AGENCY MAY RECOMMEND ADDITIONAL MEASURES OR CHANGES TO THE TESC
PLAN THAT ARE WARRANTED DURING CONSTRUCTION. THE CONTRACTOR AND
OBSERVER WILL EXAMINE ALL TESC MEASURES PERIODICALLY DURING THE
CONSTRUCTION PERIOD, AND AFTER STORMS HAVING 0.5 INCHES OR MORE OF
RAINFALL IN A 24 -HOUR PERIOD. THE OBSERVER AND THE PERMITTING
AGENCYHAVE THE AUTHORITY TO REQUIRE CORRECTIVE ACTION IN ORDER TO
ACHIEVE EROSION CONTROL OBJECTIVES.
4. THE IMPLEMENTATION OF THESE TESC PLANS AND THE CONSTRUCTION,
MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE TESC FACILITIES IS
THE RESPONSIBILITY OF THE CONTRACTOR UNTIL ALL CONSTRUCTION IS
APPROVED. TESC MEASURES SHALL REMAIN FUNCTIONING AND IN PLACE UNTIL
THE SITE HAS BEEN STABILIZED AND THE PERMITTING AGENCY, OWNER OR
ENGINEER HAS APPROVED THE REMOVAL OF THE TESC MEASURES.
5. AS CONSTRUCTION PROGRESSES AND UNEXPECTED SEASONAL CONDITIONS
DICTATE, ADDITIONAL TESC MEASURES MAY BECOME NECESSARY TO PROTECT
ADJACENT PROPERTIES AND TO ENSURE WATER QUALITY FOR SITE RUNOFF. IT
SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO ADDRESS DEFICIENT TESC
CONDITIONS, AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE THE
MINIMUM REQUIREMENTS OUTLINED ON THE APPROVED PLANS AS NEEDED.
6. THE TESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED IN
CONJUNCTION WITH ALL CLEARING AND GRADING ACTIVITIES, AND IN SUCH A
MANNER AS TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE
DRAINAGE SYSTEM OR VIOLATE APPLICABLE WATER QUALITY STANDARDS.
7. THE TESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS
FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE
TESC FACILITIES SHALL BE UPGRADED (E.G. ADDITIONAL SUMPS, RELOCATION OF
DITCHES AND SILT FENCES, ETC.) AS NEEDED FOR STORM EVENTS.
8. THE TESC FACILITIES SHALL BE INSPECTED DAILY BY THE CONTRACTOR AND
MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTIONING.
9. ANY AREA NEEDING TESC MEASURE, NOT REQUIRING IMMEDIATE ATTENTION,
SHALL BE STABILIZED WITHIN FIFTEEN (15) DAYS.
10, AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO
ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE
LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL
NOT FLUSH SEDIMENT LADEN WATER INTO THE DOWNSTREAM SYSTEM.
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