HomeMy WebLinkAboutApproved Preliminary January 19897M
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L MlG 7ARY RESERVATroN
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FOREST Rl96E SECT.I }
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SOIL EROSION CONTROL h~ s y sy ~ 0 ` 4~ ~ P.C. cscroeraz-a I
~r SFr \~M£LL LOT 5~ I FUTURE LAKE
1. SOILS DATA the majority of the project site and the off
• z site contributing watershed consists of Gilead Series soils. This
information was provided by the Harnett County SCS office. The Gilead Series are in the "C" hydrologic soil group, SCS Curve No. r6r"Ierl CLA H%r,,r4 o
70 for wooded watershed (off-site portion of watershed).
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2. DETAILS & DESIGN INFORMATION - see sheet No. 9 for details -
and design tables. ~5g 4 1 v r
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3. CULVERTS -some of the existing culverts are not properly V II i I ~ v~~ ~ ~Jwct~, 12 v v >v~ T
sized for the applicable storm frequency. See Table 9-1 "Design ? 1 (FLJ ~u of Culverts" on sheet No. 9 for required culvert sizes. 2,90 4. CULVERT OUTLET & INLET PROTECTION - see Table 9-2 on sheet
No. 9 for riprap energy dissipators required at all outlets of \ q 1 S
culverts. Provide same riprap and flared-end section on all 90 q3 ? ~'~r \ /
culvert inlets. 00 ~Iro V 9 m l0 6~ \ce
5. CONCRETE FLARED-END SECTIONS should be added to all culvert x \v
inlets and outlets.
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6. TEMPORARY SEDIMENT TRAPS - see sheets 2 thru 7 for locations
of temporary sediment traps required in side ditches. Construct
sediment traps a minimum of 20 feet upstream from the culvert it 1
is protecting. Do not install sediment trap in any portion of any /Sn natural stream.
7. ROADSIDE DITCHES -reshape all side slopes to a minimum of
4:1 (horizontal to vertical). }
8. INLET PROTECTION OF DROP INLETS - see detail on sheet No. 9
for inlet protection of the four (4) drop inlets (Culvert Nos. 2,
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9. SEEDING - all disturbed areas such as road shoulders, \ >r phi i
ditches, and side slopes shall be seeded immediately with a \ - / ' y0 T L
temporary ground cover followed by a spring seeding of permanent \J ~T 1 1-- i ~A' ,
grass. Seeding, Mulching, and Fertilizing shall be as follows: ro „ , ti tiA
4• ` h Temporary Seeding: 09, ~ ~ ~ 91 REVISED AUG. 15,1989
(H CARO~i~~'^.. ACV Sc:J ~UIIE ~IGZ
Grass - Rye (120 lbs. per acre)
Fertilizer - 800 lbs. per acre of 10-10- 6 v ° . GEORGE L. L OTT SURVEYORS SEAL
L-1379 1057 ANDREWS ROAD FA YETTEV2LE, NORTH CAROL/NA 283// 488-8659
Mulch - 4,000 lb. per acre of grain straw. Mulch to be anchored by using a disk with blades set nearly straight.
I O~ SUR`1E
Lime - 2,000 lb. per acre. .,,O~ YGE, L.,e ,oa~•
Permanent Seeding: SHEET
RELIiRfl I NARY
Fescue - 200 lbs. per acre.