Erosion
is caused by the forces of rainfall, runoff and wind on soil. Construction
activities such as clearing and grading increase both runoff and erosion because
the process removes protective vegetation and compacts the soil.Excessive runoff then causes gully erosion, increased stream bank
erosion, and results in increased off-site sediment transport and flooding
problems.Wilson Environmental
employs the following principles for controlling erosion and off-site
sedimentation when developing a site design:.
·Protect
the land surface from erosion.
·Manage
the runoff and keep the velocities low.
·Capture
sediment on-site.
·Integrate
erosion and sediment control with the construction schedule.
·Inspect
and maintain the erosion and sediment control practices.
In
the design phase, we consider the erosion control and sediment management both
during construction and operation phases of the golf course.For the construction phase, a storm water pollution prevention plan
(SWPPP) is prepared in consultation with the architect and the construction
contractor.This plan is required
by the National Pollutant Discharge Elimination System (NPDES) and outlines the
erosion control procedures that will be implemented during construction.In addition, the plan includes a schedule for the activities as well as
inspection and maintenance requirements.
Sediment
management during the operation of a golf course depends on the topography of a
site, the erodability of the soils, and the erosion control measures (soft or
hard armoring of slopes, vegetation, terracing, etc. ) that are installed during
construction. Erosion control measures reduce the amount of sediment but
do not eliminate it. With the digital terrain modeling, our engineers
determine the problematic areas of high erosion based on the slopes, water
flows, and soil conditions. We work with the architect to either reduce
the slopes through flattening, terracing, or armoring the surface of the slopes.
At Wilson Environmental, we consider the economics costs and benefits of capital
improvement items such as slope protection versus the cost of periodic sediment
management when developing a sediment management plan. The plan typically
includes an estimation of the amount sediment that will be deposited in a
control feature (lake); the dredging costs and sediment management procedures
and schedules; and disposal areas and reuse of the sediments
As
mentioned earlier, Wilson Environmental employs state of the art, digital
terrain software programs throughout the design of a golf course.These programs allow us to develop a three dimensional model of the
surface of a site in the existing, construction and design condition.These surfaces are then used perform the following design functions:
·Model
the flow of storm water over a site during the various conditions,
·Size
hydraulic conveyance systems and structures.
·Determine
the amount and locations of cut/fills, and
·Determine
the stability of slopes and identify potentially problematic areas to be
addressed.
These
programs provide production efficiencies with a degree of accuracy unattainable
with classical design techniques.
Dam
and Impoundment Design and Permitting
Dam
and impoundment design and permitting is an comprehensive process that includes
many aspects of civil engineering.Wilson
Environmental’s civil, geotechnical, and structural engineers are involved in
every step of the process.Our
typical services for a dam and impoundment installation include:
·Geotechnical
investigation of the subgrade soils,
·Hydrologic
analysis and modeling of the contributing watershed,
·Hydraulic
analysis and modeling,
·Stability
analysis,
·Development
of construction drawings and specifications,
·Development
of an operation and maintenance manual, and
·Permitting
including water rights and dam safety.
Once
the dam is permitted, Wilson’s engineers take an active role in overseeing its
construction to insure compliance with the drawings and specifications.
Wilson Environmental Management, Inc.
Call us toll free in the U.S. 1-800-469-0799
International callers, dial U.S. Country Code 1,
Area Code 713, Number 468-3323
e-mail
Office hours are 8 to 5, U.S. Central Time
Texas
Utah
North Carolina
9613 Maribelle
Way
827 West 1340 South
5 07 Mary Charlotte
Houston, TX 77055
Provo, UT 84601 Charlotte, NC
28262
