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Browse Dams

235 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 235 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.

Name State County Height (ft) Hazard Condition Year Purpose
Gainer Memorial Rhode Island Providence 189 High Fair 1926 Water Supply
Diamond Hill Reservoir Rhode Island Providence 80 High Fair 1971 Water Supply
James V Turner Reservoir Rhode Island Providence 60 High Fair 1934 Recreation
Lawton Valley Reservoir Rhode Island Newport 48 High Fair 1943 Water Supply
Woonsocket Reservoir # 1 Rhode Island Providence 47 High Fair 1883 Water Supply
Harris Pond Rhode Island Providence 40 High Fair 1969 Water Supply
Stillwater Reservoir Rhode Island Providence 39 High Fair 1918 Fish and Wildlife Pond
Watson, Harold E, Reservoir Rhode Island Newport 38 High Fair 1960 Water Supply
Ocean State Power Rhode Island Providence 36 High Fair — Other
Slatersville Reservoir Upper Rhode Island Providence 36 High Fair 1886
Barden Reservoir Rhode Island Providence 35 Significant Fair 1883 Water Supply
Georgiaville Pond Rhode Island Providence 35 High Fair 1882 Recreation
Pawtucket Reservoir Rhode Island Providence 33 High Fair 1928 Water Supply
Almy Reservoir Rhode Island Providence 33 High Poor 1865 Other
Valley Falls Rhode Island Providence 31 Low Satisfactory 1859 Hydroelectric
Olney Pond Rhode Island Providence 30 High Fair 1883 Recreation
Sylvester Pond Rhode Island Providence 29 Low Poor 1922 Other
Curran Upper Reservoir Rhode Island Providence 29 High Fair 1902 Fish and Wildlife Pond
Arctic Rhode Island Kent 28 High Fair 1885 Other
Woonsocket Reservoir # 3 Rhode Island Providence 28 High Fair 1895 Water Supply
Limerock Reservoir Rhode Island Providence 28 High Fair — Other
Pascoag Reservoir Upper Rhode Island Providence 27 High Poor 1860 Recreation
Slatersville Reservoir Middle Rhode Island Providence 26 High Fair 1886
Ponaganset Reservoir Rhode Island Providence 26 High Fair 1865 Water Supply
Sprague Upper Reservoir Rhode Island Providence 26 High Fair 1885 Recreation
Factory Mutual Research Ctr Lower Pond Rhode Island Providence 25 Low Poor 1948 Other
Flat River Reservoir Rhode Island Kent 24 High Poor 1873 Recreation
Harris Pond Rhode Island Kent 24 Low Poor 1882 Other
Hawkins Pond Rhode Island Providence 24 High Poor 1865 Recreation
Woonsocket Falls Dam Rhode Island Providence 24 Low Not Available 1960 Flood Risk Reduction
Centerville Pond Rhode Island Kent 23 High Poor 1885 Other
Harrisville Pond Rhode Island Providence 22 High Poor 1854 Recreation
Arkwright Pond Rhode Island Kent 22 Low Poor — Other
Jordan Pond Rhode Island Providence 22 Significant Poor — Water Supply
Hughesdale Pond Upper Rhode Island Providence 22 High Poor — Other
Manville Rhode Island Providence 22 Low Poor 1860
Albion Rhode Island Providence 21 Low Satisfactory 1850
Royal Mills Dam Rhode Island Kent 21 High Not Rated 1861 Hydroelectric
Coomer Lake Rhode Island Providence 21 Significant Poor 1885 Recreation
Wilson Reservoir Rhode Island Providence 21 High Not Rated 1866 Recreation
Mill Pond Rhode Island Kent 21 Significant Poor 1800 Other
Canada Upper Pond Rhode Island Providence 21 Significant Poor 1915 Other
Boone Lake Rhode Island Washington 21 High Fair 1885 Recreation
Pratt Rhode Island Providence 20 Low Poor —
Forestdale Pond Rhode Island Providence 20 High Poor 1883
Omega Pond Rhode Island Providence 20 Low Poor 1918 Recreation
Shoestring Mill Rhode Island Providence 20 Significant Not Rated —
Ashton Rhode Island Providence 20 Low Poor 1885
Barney Pond Rhode Island Providence 20 High Fair 1885 Recreation
Oak Swamp Reservoir Rhode Island Providence 20 High Poor 1865 Recreation

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.