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Engineering reports active stormwater, drainage and streetscape projects including Liberia stream work
Summary
City engineering staff described multiple stormwater retrofits, pond projects and right‑of‑way work, including a Liberia stream restoration project that will plant hundreds of trees and restore trails; staff said several projects use ARPA and state funding and aim to address flooding and water‑quality concerns.
Manassas engineering staff told City Council Jan. 27 that the department is managing roughly $120 million in construction projects and that stormwater and drainage work is a major focus for the coming year.
Engineering Director Lance Kilby reported completed and ongoing projects including the Grange Avenue (Grand Avenue?) streetscape Phase 1, Dean Park site construction and several pond retrofits. Kilby said the city recently completed the Winning Branch Pond retrofit and that construction on Lucasville Pond and Euclid Sills Pond was substantially under way or started.
Amy Billman, the city’s stormwater analyst, described the department’s watershed and asset management efforts. She said the city implemented a Cartograph asset‑management system tied to GIS, began citywide closed‑circuit television inspection of storm sewer pipes funded with ARPA dollars, and planned watershed assessments to target capacity and maintenance needs.
Kilby and Billman said several projects aim to reduce pollutants (phosphorus, nitrogen and total suspended solids), improve water quality, and reduce flooding risk where culverts or channels are undersized. Kilby noted Sudley Road Third Lane construction and a traffic signal conversion at Godwin/Donner as transport projects staff are advancing alongside drainage work; several projects require multiple right‑of‑way acquisitions.
When council asked about work near the Liberia House (spring house) historic site, staff said the restoration will include about 120 larger trees and roughly 600 smaller plantings along the stream corridor, trail restoration and coordination with the Department of Historic Resources to avoid impacts to historic structures. Kilby said the city will perform a structural evaluation of the spring house foundation and take measures to keep flows away from the structure where feasible.
Staff said some culvert repairs were completed as emergency work in late 2024 and that the department expects continued construction this year on several stormwater retrofit and stream restoration contracts. The engineering team asked residents to expect construction noise and temporary access impacts during work and said staff will coordinate public communications and site restoration after projects finish.
