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City receives citywide stormwater study; council presses for quick maintenance and funding plan
Summary
Consultants presented a citywide drainage study identifying 25,000+ stormwater assets, 104 miles of pipe and five systemic findings (inaccessible assets, concentrated drainage capture, small/negative slopes, wetlands, aging infrastructure); council asked for prioritized maintenance, grant applications, and a plan for capital funding.
Timmons Group presented a high-level summary of a completed citywide stormwater/drainage study at the May 5 Petersburg work session, telling council the team had inventoried more than 25,000 individual stormwater assets across the city, modeled 23 priority neighborhoods, and produced a web-based ArcGIS story map for review.
Senior project manager Aislyn Creel highlighted five key takeaways: (1) 12% of assets were inaccessible during the first-pass inventory and require targeted recovery/maintenance; (2) drainage capture varies widely and some areas channel unusually high drainage to single inlets; (3) small-diameter or poorly sloped pipes limit conveyance; (4) wetlands and swampy soils in southern neighborhoods complicate drainage strategies; and (5) existing precipitation data and design standards are outdated and local rainfall intensity is increasing.
Council and staff used the presentation to press for near-term actions: more aggressive maintenance (vac/jet cleaning of inlets and priority drains), targeted grant-seeking for follow-up study phases, and capital planning for expensive chokepoint projects (a staff estimate of approximately $12 million was referenced for a local fix near railroad chokepoints). Consultant Creel warned that some improvements will require significant funding and that end-of-pipe traps or inlet screens carry long-term maintenance burdens if not supported by additional operational capacity.
City staff said a phase 2 funding request has been submitted and that the city would begin prioritizing maintenance actions, including cleaning inaccessible structures identified in the inventory and evaluating opportunities to add a stormwater fee to real estate bills for FY27 to increase revenue for stormwater needs. Mr. Altman said staff aims to bring any ordinance or administrative approach to council in June to align billing changes with the FY27 cycle.
Speakers urged a mix of immediate maintenance and long-term capital projects, and council requested a timeline and cost estimate for implementing the study’s highest-priority fixes. Several council members also raised potential operational and legal issues where Norfolk Southern Railroad crossings constrain outfalls and could require coordination or litigation in the future.
