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KCI presents stormwater master plan identifying priority crossings and multimillion-dollar projects
Summary
A KCI consultant presented a FEMA-funded stormwater master plan for Maluldin and Fountain Inn, mapping priority crossings, a range of estimated project costs and candidate funding sources including FEMA BRIC and EPA programs; the council took no action.
KCI presented the results of a FEMA-funded stormwater master plan to the Mauldin City Council on March 17, detailing citywide asset surveys, GIS modeling, priority improvement projects and preliminary cost ranges while recommending funding targets and implementation sequencing.
Bethany Byrd of KCI summarized the project scope: survey of stormwater assets (bridges, culverts, drainage), development of a citywide GIS database and hydraulic and hydrologic modeling to identify flood-risk locations under current and future development conditions. Byrd said the study covers four watersheds within Mauldin: Bridgeport Creek, Gilder Creek, Laurel Creek and the Reedy River.
Findings and priorities: KCI's analysis identified crossings with insufficient capacity and recommended a mix of culvert replacements, road-raising and box culvert installations. Estimated project costs ranged from about $139,000 to $4,600,000. Byrd gave Kingsley Drive as a site example, saying the existing 30-inch reinforced concrete pipe is undersized and recommending replacement with an "8 by 8 reinforced concrete box and raise the road itself up by 3 feet," with a project cost of just over $1 million in that location.
KCI identified the highest-priority city-owned projects as Elm Drive, Owens Lane and Fargo Street and noted some downstream crossings would need sequencing because improvements at Mimosa Drive increase downstream flows. The firm also identified county-priority crossings (Loblawley Circle and two locations on Adams Mill Road) and state-priority crossings including Evening Way, Bonaire Street and Standing Springs Road.
Funding and next steps: Byrd said KCI will help leverage data for long-term flood risk management and pursue funding through FEMA Hazard Mitigation Assistance (HMA) and BRIC grants, EPA programs and possibly National Fish and Wildlife grant opportunities, depending on qualification. The presentation included a recommended prioritization and cost-effectiveness ranking for a capital improvements plan. The council did not take formal action on the plan at the meeting.
Direct quote: "The estimated cost range from hundred and 39,000 to 4,600,000.0," Byrd said during the presentation, describing the range of project scales identified.
No vote was taken; the presentation provides a framework for future capital programming and grant applications.
