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Commissioners press staff on floodplain modeling and downstream effects as LOMAR work proceeds
Summary
During the zoning and overlay discussion, commissioners raised concerns about floodplain changes downstream of recent proposals and asked staff to track LOMAR (letter of map revision) updates and downstream impacts.
Commissioners discussed floodplain modeling for South Fork/third creek and the implications of proposed infrastructure changes. One commissioner emphasized the change in risk: "we've never had homes physically involved in the hundred year flood. And now we do," underlining why updated models and downstream analysis matter for planning and permitting.
Staff and county engineers reported that the county was revising floodplain modeling to incorporate proposed culverts and other changes; staff said a LOMAR (letter of map revision) is being prepared and could reduce mapped floodplain extents in specific areas, but commissioners emphasized the need to consider downstream impacts and town-owned floodplain areas when evaluating projects.
