Browse Dams

2,711 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 2,711 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.

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Name State County Height (ft) Hazard Condition Year Purpose
Afton Drive/Chappell Creek Dam Virginia Prince George 7 Undetermined Not Rated — Recreation
Governor'S Point Dam Virginia Suffolk 7 Low Not Rated — Flood Risk Reduction
Wolfsnare Lake Dam Virginia Virginia Beach 7 Undetermined Satisfactory — Flood Risk Reduction
Great Neck Lake # 7 Dam Virginia Virginia Beach 7 Undetermined Not Rated — Flood Risk Reduction
Mule Pen Quarry Structure No. 1 (1 of 3 Structures) Virginia Fairfax 6 Undetermined Not Rated — Other
Great Neck Lake Dam Virginia Virginia Beach 6 Undetermined Not Rated — Flood Risk Reduction
Bath County P S Fused Overpump Spillway - At Upper Reservoir Virginia Bath 2 High Satisfactory 1984 Hydroelectric
Isom Dam Virginia Carroll 0 High Not Rated — Recreation
Arcola Center Dam Virginia Loudoun 0 Significant Not Rated — Flood Risk Reduction
Cobbs Creek Regional Water Supply Reservoir Saddle Dam (Dam B) Virginia Cumberland 0 High Not Rated — Water Supply
Cobbs Creek Regional Water Supply Reservoir Dam Perimeter Dam (Dam C) Virginia Cumberland 0 High Not Rated — Water Supply

Frequently Asked Questions

Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.

Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.

Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.