Design/Maps/Site Plans - 12/16/2002

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406,59 �" JOB NO- 9-0702
A�

ermanent Seeding Lawn Seeding Mixture
Species Rate (lb/acre)
Kentucky Blue russ (207.) 260 lbs -
Rebel 1 ?807.)
Seeding Dates
Mountains March 15 May 15
August 15 October 15
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/Gcre
?round agricultural limestone and 750 lb/6cre 10�-10-10
ertilizer.
Mulch
Apply 4,000 lb/acre straw. Anchor straw by tocxing with
asphalt, netting or a mulch anchoring toot. A disk with
blades set neady straight can be used as a mul,ch anchoring
tool.
Maintenance
Refertilize if growth is not fully adequate. Reseed, refertilize
and mulch immediately folloWing erosion or other damage.
Slope Seeding Mixture
Species Rate (lb/ocre)
Voldo Hard Fescue 20 lbs.
Astro Tall Fescue 8 lbs.
Penlawn Red Fescue 25 lbs.
Perennial R 25 lbs -
Ken -Blue Weentucky Bluegrass 1.5 lbs.
Seeding Dates
Mountains March 15 May 15
August 15 October 15
Soil Amendments
Follow recommendations of soil tests or apply 2,000 In acre
?round agricultural limestone and 400 lb/6cre 18-46-4
Ier-tilizer.
Mulch
Apply 4,000 lb/Gcre straw. Anchor straw by todking with
asphalt.
Maintenance
Refertilize if growth is not fully adequate. Reseed, refertilize
and mulch immediately following erosion or other damage -
MUD MAT
NOT TO SCALE
ROCK CHECK DAM WITH SILT PIT
NOT TO SCALE
Temporary Seeding Seeding Mixture
for Summer Species Rate (lb/acre)
German Millet 40 lb&
Seeding Dates
Mountains May 15 �OAugust 15
Piedmont May 1 - August 15
Coastal Plain April 15 - August 15
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/ocre
?round agricultural limestone and 750 lb/6cre 10-10-10
1ertilizer.
Mulch
Apply 4,000 lb/acre straw- Anchor straw by tacking with
asphalt, netting or a mulch anchoring -'fbol, A disk with
blades set nearly straight can be used as a mulch anchoring
tool.
Maintenance
Refertilize if growth is not fully adequate. Reseed, refertijrize
and mulch immediately following erosion or other damage.
Temporary Seeding Seeding Mixture
tlMl �_V
for Fall Species Rate (lb/acre)
Rye (grain) 260 lbs.
Seeding Dates
Mountains August 15 --- December 15
Piedmont August 15 - December 15
Coastal Plain August 15 - December 30
Soil Amendments
Follow recommendations of soil tests or 071Y 2,000 lb/a<-re
?round agdcultural limestone and 1,000 lb acre 10-10-10
ertflizer.
Mulch
Apply 4,000 lb/acre straw, Anchor straw by tacking with
asphalt, netting or o mulch anchoring tooL A disk with
blades set nearly straight con be used as a mulch anchoring
tool.
Maintenance
repair and refertilize damaged areas immediately. Topdre�-,,s
with 50 lb/ocre of nitrogen in March. If it is necessary to
extend tem orary cover eyond June 15, overseed with 50 #b/
Piedmont Coastal Plain) or Korean (Mountains)
acre Kot F, 1�
Lespedezo in late February or early March.
SLOPE DRAIN SEDIMENT BASIN
NOT TO SCALE
Temporary Seeding Seeding Mixture
for Winter & Early Spring Species Rote (lb/ocre)
Rye (grain) 120 lbs.
Annual Lespedezo (Kobe 50 lbs.
in Piedmont & Coastal
Plain, Korean in Mountains)
Seeding Dates
Mountains Above 2,500 February 15 - May 15
Mountains �13 February 1 May 1
Piedmont Januor 1 Me 1
Coastal Plain Decem9e, 1 - Rpril 15
Soil Amendments
Follow recommendations of soil tests or apply 2,000 lb/acre
?round agricultural limestone and 750 lb/6cre 10-10-10
ertilizer.
Mulch
Apply 4,000 lb/acre straw. Anchor straw by tacking with
asphalt, netting or a mulch anchoring tool. A disk with
blades set nearly straight can be used as G mulch anchoring
tool�
Refertilize if growth is not fully adequate- Reseed, refertilize
and unulch immediately following erosion or other damage.
------------- j
FINISHED GRADE
2" 1-2 ASPHALTIC CONCRETE
VAERMT1W,
COMPVJED SUBGRADE_
HEAVY DUTY ASPH. U)NC. PAVEMENT
NOT TO SCALE
(a
WATER LEVEL----\
2-1 SIDE SLOPE--
NCDOT #57 WASHED STONE——
CLASS B EROSION CONTROL- ST04E
ASHED FILTER FABRIC SECTION
WEIR
LENGTH
DIPE SLOPE
R RISER
0_C_ WRAP
1G FABRIC.
co
1 3' -0-
-OW -0 -
MIN.
ELEVATION
SEDIMENT TPAP
EMERGENCY SPILLWAY -
6' BELOW TOP OF DAM
2-1 SIDE SLOPE
1: 1 SIDE SLOPE
HILTER FABRIC
4.
ANGLE FIRST STAKE
TOWARD PREVIOUSLY L
LAID BALE f, t
ea
FLOW )>
L
SRI
MA1110 11
EMBEDDED Fli-TER FABRIC
MIW 8' INTO GROUND
ANCHORING DETAIL
STRAW
NOT TO SCALE
b"ALE rL__)_'1K/E
BEDDING DETAIL
FINISH GRADE
FLOW
HIM 0 *
U 10H
U W
U W
U W
U W
U W
U W
to 0'! " 11, wt
SILT FENCE DETAIL
NOT TO SCALE
1� Silt fence shall be constructed before upslope land disturbance begin&
2� All silt fence shall be placed as close to the contour as possible so
that water will not concentrate at low points in the fence and so that
small swales or depressions which may carry small concentrated flows to
the silt fence are dissipated along its length-
3� To prevent water ponded by the silt fence from flowing around �ffie
ends, each end shall be constructed upslope so that the ends are
at a higher elevation -
4. Where possible, silt fence shall be placed on the -flattest area available.
5. Where poss�ble, vegetation shall be preserved for 5 ft. (or as much as
possible) upslope from the silt fence. If vegetation is removed. it shall
be reestatifisiied within 7 days from the installation of the silt fence.
6. The height of the silt fence shall be a minimum of 16 in. above the origina
ground surface.
7. The silt fence shall be placed in a trench cut a minimum of 6 in. deep.
The trench shall be cut with a trencher, cable laying machine, or other
suitable de4ce which will ensure an adequately uniform trench depth.
& The silt fence shall be placed with the stakes on the dowaslope side of
the geotertifie and so that 8 in. of cloth are below the ground surface-
-in. -d p tren e
Excess material shall lay on the bottom of the 6 ee ch Th
trench shaf be backfilled and compacted.
9- Seems between section of silt fence shall be overlapped with the end stakes
of each secfion wrapped together before driving into the ground.
10. Mainterionce—Silt fence shall allow runoff to pass only as diffuse flow through
the geotextie. If runoff overtops the silt fence. flows under or around the ends,
or in any o�her way becomes a concentrated flow, one of the following shall be performed,
as uppropr',cte:
1) The layout of the silt fence shall be changed,
2) Accurnuicted sediment shall be removed, or
3) Other practices shall be installed.
Criteria for S4tt Fence Materials
1. Fence Posts ---The length shall be a minimum of 32 in- long. Wood posts will be 2-by-2in-
hardwood olf sound quality. The maximurn spacing between posts shall be 1 0 ft.
2� Silt Fence, Fabric (see below):
Fabric Properties Values Test Method
Grob Tensile Strength 90 lb. minimum ASTM D 1682
Mullen Burs", 'Strength 190 psi minimum ASTM D 3786
Slurry Flow Rate 0.3 gal /min./f`2 maximum
Equivalent Opening Size 4G-80 US td. Sieve CW -02215
Ultraviolet Radiation Stability 90%. minimum ASTM -G-26
SILT FENCE CONSTRUCTION SPECIFICATIONS