HomeMy WebLinkAbout064-94 SP Sutton Place Sec.2 Erosion Control DetailsSilt Fence Detail
SEEDING SPECIFICATIONS
1. Swales and grassed waterways: permanent seeding shall take place between
March 1 and May 15 or from August 10 to October 15 with the following
per acre application rates. -
25 lbs. Kentucky 31 Fescue
15 lbs. Kentucky Blue Grass
1000 lbs. Fertilizer
3000 lbs. straw mulch.
2. If grades are established between October 15 and December 30, either rye
(grain) or wheat may be used at the rate of 2 bushels per acre. Oats may
be used for early spring planting at the rate of 3 bushels per acres. All
grains shall be cut at the time of permanent seeding or prior to to seed
maturing.
3. If grades are established between May 15 and August 10, a temporary
seeding consisting of 40 lbs. of annual ryegrass shall be planted per ac.
4. If temporary seeding is established prior to permanent seeding, the mulch
may be eliminated except in "bare" areas.
5. If grading occurs during December, January or February, no seeding shall
take place untill spring planting. However it is imperative that all
sediment filters and traps are in place prior to bulk earthmoving or
clearing.
SOIL EROSION CONTROL SUMMARY AND SEQUANCE:
1. Contractor shall install sediment traps and straw bale filters as shown
prior to the comencement of bulk earthmoving.
2. Mass grade the site (sides of swales, mounds and ponds to be sodded or
seeded and mulched immediately upon completion). Temporary seeding shall
be recommended for all swales and disturbed areas that cannont be final
seeded within a time period that will prevent soil erosion. For temporary
seeding the contractor shall utilize a fast growing seed of either oats,
annual ryegrass, wheat or rye depending upon the time of year. Disturbed
area should be kept to a minimum at all times.
3. Contractor shall control mud accumulation on all streets surrounding the
project by installing stone surface at all locations where construction
traffic leaves the site. Dust shall be kept to a minimum by utilizing
sprinkling, calcium chloride, vegetative cover, spray on additive or
other approved methods.
4. Maintain all filters and traps during construction to prevent any
blockages from accumulated sediment. Additional seeding and straw may
be required during construction as specified by the engineer or the Soil
Conservation Service.
5. Rip rap shall be placed in areas of high velocity stream flow (minimum
size shall be 1/3 cu. ft.)
6. Contractor shall install all storm sewer inlet filters at the time the
storm sewer is installed.
7. All proposed street areas to be paved as soon as possible after subgrade
is prepared.
- STAKE
LATH
SILT FENCE
BACKFILL and
COMPACT
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SIDE SIDE
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1 staple per sq. ya 1 112 staples per sq. yd.
Wheat or Rye
Oats
Annual Rygrass
Non—Irrigated °
Irrigated
Dormant Seeding
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NOTES:
1. Dig a 6" to 8" deep trench along the proposed
fence line.
2. Roll out Silt Fence on the uphill side of the
trench. Unroll Silt Fence with fabric side down
and stake side up. (Nutec Silt Fence unrolls
from left to right.
3. Drive stakes on downhill side of trence. Drape
loose end of fabric into trench.
4. Backfill and compact soil from uphill side of slope.
IMPORTANT: STAKES MUST BE ON DOWNSHILL SIDE OF SLOPE!
2 staples per sq. yd.
Patten Detail
Temporary Seeding Dates
�LXL x
X x x
X x x
XDx
3 1/2 staples per sq. yd.
Jan Feb 1, Mar�pri M• • -•NovDec
Permanent Seeding Dates
Irrigation needed during this period. To control
erosion at time other than in the shaded areas use mulch.
Late summer seeding dates may extended 5 days if mulch is applied.
9 Increase seeding application by 50 %.
P LAN
ELEVATI U IN
BOTTOM of
_ DRAINAGE WAY �
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Straw Bale Channel Barrier
COMPACTED
BACKFILL -
WOOD OR STEEL
STAKE
STRAW BALE
BINDING WIRE
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SECTION A—A
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11036
STATE OF
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