MAIN STREET DRAINAGE IMPROVEMENTS - Project No. 1 - TSPLOST 2023 - Athens-Clarke County
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Project No. 1
MAIN STREET
DRAINAGE
IMPROVEMENTS
TSPLOST 2023
Project Goals
• Replace failing and undersized storm drain and culverts
along portions of Main Street
• Replace existing curb and gutter and pavement to
provide adequate curb height to intercept run-off from
street
• Add new inlets to prevent flooding of Main Street and
nearby residences
Improves equitability of
capital improvement
throughout the community
TSPLOST 2023
Main Street Drainage Improvements 2
Project Location
TSPLOST 2023
3
Main Street Drainage Improvements
Failing Stormwater Pipes
Existing Vitrified Clay Pipes (VCP) storm drain pipes
were originally installed under Main Street over 50
years ago. These clay pipes have served beyond their
expected life-span and began to crack and fail along
the length of the culverts and lead to the formation of
sinkholes. These pipes are also undersized and can
not safely convey runoff from Main Street.
VCP storm drain is no longer an acceptable storm
drain pipe material. New storm drains would be
constructed of Reinforced Concrete Pipe (RCP) and
modern material with a superior service life.
Protects existing
Transportation Infrastructure
Investments
TSPLOST 2023
Main Street Drainage Improvements 4
Private Property
Flooding and
Erosion
Catastrophic failure of the Vitrified Clay
Pipes (VCP) storm drain pipes under
Main Street cause erosion and flooding
to adjacent properties. when the street
was originally constructed over 50 years
ago.
The proposed improvements would
prevent future flooding and erosion.
Appropriate Best Management
Practices (BMPs) would be utilized to
manage outfall velocities and reduce
potential erosion and flooding
problems on adjacent properties.
Improves equitability of
capital improvement
throughout the community
TSPLOST 2023
Main Street Drainage Improvements 5Street Flooding
Because of inadequate drain inlets and limited curb reveal,
the Main Street floods. The flooding and standing water
cause vehicles to splash water on to users of the adjacent
FireFly Trail and sidewalks.
The Firefly Trail and adjacent sidewalks serve as the Safe
Routes to School for Winterville Elementary. Out of fear of
being splashed by passing vehicles, pedestrians are fearful
of using these facilities when wet.
The flooding of the street and standing water limit the life
span of the existing pavement and subgrade causing
premature failure of the pavement system.
Reduces Pavement
Maintenance deficit
TSPLOST 2023
Main Street Drainage Improvements 6In what specific ways will this project “Close the Equity Gap” in
Athens-Clarke County, by improving the Equitability of Capital
Improvements throughout the entire community?
• The City of Winterville has received limited investment of TSPLOST
dollars in the past TSPLOST projects.
• The City of Winterville is growing in population, and has become a
place for citizens looking for a more affordable and less urban
housing opportunities.
TSPLOST 2023
7
Main Street Drainage ImprovementsHow will this project address one or more of the Mayor and
Commission approved Strategic Commitments and Project
Selection Criteria?
• Promotes the Goal of Improving Equitability if Capital Improvements throughout the Community by
investing infrastructure funds in the City of Winterville, outside the urban core of the Athens-Clarke County
community
• Protects the community’s existing transportation infrastructure investments. The existing storm drain
network below Main Street is a mix of clay pipe, older concrete piping, and a combination of older materials
that have begun to fail. Athens-Clarke County Department of Transportation and Public Works, Streets and
Drainage Division continues to make small repairs and patches to the failing system, but a comprehensive
approach is required to remedy the continued need for repetitive maintenance. The existing asphalt has been
overlaid to the point that the curb reveal is so low that runoff from the street can no longer be captured,
leading to standing water infiltrating the asphalt and subgrade there by damaging the asphalt pavement
further.
• Reduces pavement management deficit. The existing asphalt has been overlaid to the point that the curb
reveal is so low that runoff from the street can no longer be captured, leading to standing water infiltrating the
asphalt and subgrade there by damaging the asphalt pavement further. A comprehensive solution to address
drainage and potential to improve the subgrade below Main Street would limit repetitive overlay, or future
milling and overlay of the roadway.
TSPLOST 2023
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Main Street Drainage ImprovementsHow will this project address one or more of the Mayor and
Commission approved Strategic Commitments and Project
Selection Criteria?
• Promotes increased access to existing public facilities. Reduces the potential runoff to be splashed on to
users of the Firefly Trail Use of the Firefly Trail after rain invents is discouraged by users because of the standing
water along Main Street and the risk of trail users being splashed by water by passing vehicles. The trail
network not only serves as a recreational facility but is also used as a Safe Route To School for Winterville
Elementary. Standing water discourages pedestrians on either side of the street for fear of being splashed by
standing water.
TSPLOST 2023
9
Main Street Drainage ImprovementsWhat aspects of this project will focus on improving the “Triple
Bottom Line” (Impact on Economic Prosperity, Social Well‐being,
and the Environment)?
Economic Prosperity Social Well-Being Environment
• Provides maintenance of • Reduces flooding of • Reduces flooding of
existing infrastructure by Main Street, adjacent adjacent properties
replacing failing
sidewalks and reduces
stormwater pipes • Reduces potential for
splashing of stormwater
• Reduces future operating catastrophic failure and
onto Firefly Trail users
cost by improving drainage environmental damages
and decreasing the need for failed storm drains
for continuous
maintenance and repair
TSPLOST 2023
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Main Street Drainage ImprovementsThank you
Q&A
TSPLOST 2023
11
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