SW6191201_SW Narrative_20191205

Joe E. Godwin Sr., P.E., P.L.S.
noch
nosh P.A.
Consulting Engineers & Surveyors
1403 NC Hwy 50 South
Benson, NC 27504
Lynn Ridge
Black River Township, Harnett County
PROJECT NARRATIVE
Phone: [phone]
[phone]
Fax: [phone]
Email: [e-mail]
Project Description
The purpose of this project is to develop a 77 lot residential subdivision. The subdivision site
is 31.6 acres and is located along Lipscomb Road (SR 1504) approximately 6,600 feet north of
its intersection with NC Highway 210 in Black River Township, Harnett County, NC.
Construction of Streets and utilities as well as temporary skimmer basin area has been
considered in this land disturbance activity for a total disturbance of 19.8 acres.
Site Description
The site is existing woods and open farmland. Existing topography drains to the south with
slopes ranging from approximately 1 % - 8%. The property is bounded on the east and west by
blueline streams each with 30' buffers (both are un-named tributaries to Youngs Pond). These
streams and buffers with associated wetlands (delineated) will remain undisturbed.
Adjacent Property
The land uses in the surrounding areas are residential and undeveloped.
Soils
The soils in the project area consist primarily of Bb (Bibb Soils, frequently flooded), FaB
(Fuquay loamy sand, 0 to 6% slopes), NoA (Norfolk loamy sand, 0 to 2% slopes), NoB
(Norfolk loamy sand, 2 to 6% slopes), W (Water), and WaB (Wagram loamy sand, 0 to 6%
slopes). Bb is categorized as poorly drained, moderately permeable, and is poorly suited to
urban and recreational uses. FaB is categorized as well drained, moderately permeable, and is
moderately suited to urban and recreational uses. NoA is categorized as well drained,
moderately permeable, and is well suited to urban and recreational uses. NoB is categorized as
well drained, moderately permeable, and is well suited to urban and recreational uses. WaB is
categorized as well drained, moderately permeable, and is well suited to urban and recreational
uses.
Planned Erosion and Sediment Control
As shown on the Erosion Control Plan the project will be controlled and stabilized with
diversion berms, silt fence, jute matting, rock check dams, and temporary skirnrner basins
w/baffles. Catch basin protection will be used during construction to prevent sediment from
entering the storm pipe system. Topsoil will be wasted on -site as non-structural fill material
and berms will be constructed from topsoil graded from the site. Skimmer basins will be
constructed with baffles and outlet protection. All measures will be constructed and maintained
to NCDEQ standards and requirements.
After erosion control measures are removed. Surface waters from the roadway areas will drain
via grassed roadside ditches to a grassy swales (Lots 4/5, 8/9, 11/12, 14/15, 16/17, 19/20 and
22/23) which will convey the runoff to an undisturbed low area of the site. Impervious areas on
the lots will surface drain through the grassed yard areas over the natural contours of the Site.
Project impervious percentage is limited to 24%.