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Committee discusses drainage study, LIDAR mapping and regional collaboration after floods
Summary
Finance committee members urged a coordinated study of drainage in the wake of recent flooding, discussed pending LIDAR mapping from FEMA and raised the need to involve neighboring counties in solutions.
Roswell finance committee members discussed drainage problems and post‑flood recovery planning, urging coordinated studies and regional partnerships to identify where water is moving and how to reduce future damage. The committee spent substantial time describing local erosion and channel changes since the October floods and asked staff to pursue LIDAR mapping and collaborative planning with neighboring counties.
Committee members said crews cleared waterways before monsoon season and that erosion had changed flow paths. Committee members reported they expect FEMA and related partners to deliver LIDAR mapping for planning purposes by July, and they said the new data will show whether flood paths changed compared with earlier maps. Members noted some water is entering the city from adjacent counties and said cross‑jurisdictional work will be necessary.
Members asked staff to pursue a drainage improvement study identified as a candidate ICIP project and to discuss whether the county or state can help fund work. Staff said the project was added to engineering as an item — a “City of Roswell drainage improvement study” — and recommended coordinating with county flood control and with FEMA mapping to identify retention and route adjustments. Committee members also asked staff to gather prior maps for comparison and to provide a LIDAR‑based analysis once the dataset arrives.
The discussion clarified that the ICIP ranking noted on state lists is an administrative ordering and does not, by itself, guarantee funding; members asked staff to treat the ranking as informational only while pursuing funding and collaboration. Several members emphasized the importance of retention ponds and stormwater conveyance fixes and asked staff to report back with a scoped study and cost estimate to present to full council.
The committee did not adopt a formal funding action during the meeting; members asked staff to return with the LIDAR results, a draft scope of the drainage study, and a recommended plan for intergovernmental collaboration and potential grant sources.
