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Hampton Green hydrology study finds limits on fixes; staff recommends beaver‑dam and debris removal and further study
Summary
An H&H hydraulics and hydrology study for Hampton Green concluded that removing a beaver dam and clearing downstream debris would have local benefit but would not fully resolve flooding; larger engineering fixes would exceed $600,000–$1.1 million and would produce only marginal reductions for many yards, staff said.
Town consultants presented a hydraulics and hydrology (H&H) study and three mitigation options for the Hampton Green neighborhood at the April 28 board meeting after residents described recurring backyard flooding.
Resident Celeste McMinn described back‑yard flooding and asked what was causing increased water levels; she noted a beaver dam and erosion near a culvert headwall that the town has since repaired. Staff later summarized the consultant findings: standard 1‑year and 5‑year flood modeling shows expanded inundation in some yards during larger storm events but little change between 2010 and current conditions in most places, meaning upstream development alone did not explain the full change in flooding.
Consultants presented three mitigation…
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