HomeMy WebLinkAbout09060016 Construction Plans for Carmel Public Library Parking & Signage Improvemnts pg. 07ADD INLET PROTECTION
NEXT INLET
STEP 1:
STEP 3:
FLOW
EXCAVATE A 4" X 8" DEEP
TRENCH
SE C1ION
8"
COMPACTED FILL
NON -WOVEN HEAVY DUTY
GEOTEXTILE FABRIC ON DOWN
SLOPE AND BOTTOM OF TRENCH
STEP 2:
2" X 2" HARDWOOD POST
18"
2" HARDWOOD POST
NON -WOVEN HEAVY DUTY
GEOTEXTILE FABRIC
Inetalatlon:
1. Loy out the location of the fence so that it is parallel to the contour of the slope
and of least 10 feet beyond the toe of the slope to provide a sediment storage
area. Turn the ends of the fence up slope such that the point of contact between
the ground and the bottom of the fence end terminates at a higher elevation than
the top of the fence of its lowest point.
2. Excavate an eight -inch deep by four -inch wide trench along the entire length of
the fence line. Installation by plowing is also acceptable.
3. Install the silt fence with the filter fabric located on the up -slope side of the
excavated trench and the support posts on the down -slope side of the trench.
4. Drive the support posts at least 18 inches into the ground, tightly stretching the
fabric between the posts as each is driven into the soil. A minimum of 12 inches
of the filter fabric should extend into the trench.
5. Loy the lower four inches of filter fabric on the bottom of the trench and extend it
toward the up -slope side of the trench.
6. Backfill the trench with soil material and compact it in place.
Note: If the silt fence is being constructed on -site, attach the filter fabric
posts and attach wooden lathe to secure the fabric to the posts. Allow
inches of fabric below ground level. Complete the silt fence installation,
1 through 6 above.
Maintenance:
Inspect within 24 hours of o rain event and of least once every seven calendar
days.
If fence fabric tears, starts to decompose, or in any way becomes ineffective,
replace the affected portion immediately. Not Al repairs should meet specifications as
outlined within this measure.
Remove deposited sediment when it is causing the filter fabric to bulge or when it
reaches one -half the height of the fence at its lowest point. When contributing
drainage area has been stabilized, remove the fence and sediment deposits, grade
the site to blend with the surrounding area, and stabilize.
SILT FENCE BARRIER INSTALLATION
to the support
for at least 12
following steps
STORM
SEWER
GRATE
REINFORCED CORNERS
MANAGEABLE
2 FOOT
CONTAINMENT
AREA
EC -14
DANDY SACK
OR ENGINEERED EQUAL
NO SCALE
LIFT
STRAPS
OPTIONAL
OVERFLOW
PORTS
DUMPING
STRAPS
STORM
INLET
SYMBOL/
HATCH /LIN ETYPE
SF
0
EROSION CONTROL NOTES
INSTALLATION AND MAINTENANCE GUIDELINES
INSERT (BAG) INLET PROTECTION
LEGEND
PROPOSED EROSION CONTROL
DETAIL DESCRIPTION
NO.
EC -14 INSERT (BAG) INLET PROTECTION
PERMANENT SEEDING WITH MULCH OR HYDROSEED
EC 10 SILT FENCE BARRIER INSTALLATION
CONSTRUCTION LIMITS
CARPEL EARTHWORK NOTE
NO EARTH DISTURBING ACTIVITY MAY COMMENCE WITHOUT AN APPROVED STORM WATER MANAGEMENT
PERMIT.
1. SEE THIS SHEET FOR EROSION CONTROL DETAILS.
2. SILT FENCE BARRIER TO BE INSTALLED PRIOR TO CONSTRUCTION.
3. EROSION CONTROL MEASURES TO BE MAINTAINED THROUGHOUT THE ENTIRE CONSTRUCTION
PROCESS.
4. STORM WATER DISCHARGE WILL NOT ENTER THE GROUNDWATER FOR THIS PROJECT.
5. EROSION CONTROL MAINTENANCE SITE TO BE INSPECTED AT LEAST ONCE A WEEK AND MAKE
REPAIRS IMMEDIATELY AFTER PERIODS OF RAINFALL.
6. THE 100 YEAR FLOODPLAIN, FLOODWAY FRINGE AND FLOODWAYS ARE AS (SHOWN /NOT
PRESENT).
7. BROOKSTON SOIL IS PRESENT AND IS A HYDRIC SOIL.
8. ANY DISCREPANCIES OR CONFLICTS WHICH BECOME APPARENT BEFORE OR DURING
CONSTRUCTION SHALL BE BROUGHT TO THE ATTENTION OF THE DESIGN ENGINEER PRIOR TO
CONSTRUCTION SO THAT CLARIFICATION OR REDESIGN MAY OCCUR.
NOTE: THE DANDY CURB SACK WILL BE MANUFACTURED IN THE U.S.A. FROM A WOVEN
MONOFILAMENT FABRIC.
Installation
1. Remove the grate from the catch basin.
2. If using option oil absorbents, place absorbent pillow in unit.
3. Stand the grate on end, move the top lifting strops out of the way and place the grate
into the dandy sack so that the grate is below the top strops and above the lower straps.
4. Holding the lidting devices, inster the grate into the inlet.
Maintenance
Inspect doily.
Remove all accumulated sediment after each storm event. Dispose of sediment in an area
where it will not reenter the paved area or storm drains. To empty unit, lift the unit out of
the inlet by using the lifting straps and remove the grate. If using optional oil absorbents,
replace absorbent when near saturation. Contact: 708 867 -8446
When contributing drainage area had been stabilized, remove inlet protection.
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II 0/25/09
Date
COVERING
EROSION CONTROL PLAN
DESIGN
"HOLEY MOLEY SAYS CALL AT LEAST
TWO FULL WORKING DAYS BEFORE YOU DIG
ITS THE LAN(
1- 800 382 -5544
CALL TOLL FREE
1- 800 428 -5200
FOR CALLS OUTSIDE OF INDIANA
Drawn By:
GCW
Checked By:
STA
Quality Assurance:
PJG
Scale: 0
Scale: t' 40
Sheet
C401