Browse Dams

7,711 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 7,711 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
Castaic	California	Los Angeles	340	High	Poor	1973	Water Supply
Amistad Dam	Texas	Val Verde	287	High	Poor	1969	Flood Risk Reduction
Lower Baker	Washington	Skagit	285	High	Poor	1927	Hydroelectric
Nacimiento	California	San Luis Obispo	255	High	Poor	1956	Hydroelectric
Midas Tailings Storage Facility Ph Iv Dam	Nevada	Elko	250	Significant	Poor	1998	Tailings
El Capitan	California	San Diego	237	High	Poor	1934	Water Supply
Santeetlah	North Carolina	Graham	216	High	Poor	1928	Hydroelectric
Santa Felicia	California	Ventura	213	High	Poor	1955	Water Supply
Chimney Rock Pump Storage	Oklahoma	Mayes	195	High	Poor	1968	Hydroelectric
Guayo Dam	Puerto Rico	Adjuntas	190	High	Poor	1956	Hydroelectric
Lake Arrowhead	California	San Bernardino	190	Significant	Poor	1922	Water Supply
Waterbury	Vermont	Washington	187	High	Poor	1938	Flood Risk Reduction
Morena	California	San Diego	181	High	Poor	1912	Water Supply
Round Valley South Dam	New Jersey	Hunterdon	178	High	Poor	1961	Water Supply
Bath County P S Lower Reservoir - Lower Dam	Virginia	Bath	170	High	Poor	1984	Hydroelectric
Vermilion Valley	California	Fresno	165	High	Poor	1954	Hydroelectric
Matilija	California	Ventura	163	High	Poor	1949	Other
Barrett	California	San Diego	161	High	Poor	1922	Water Supply
Wells	Washington	Chelan	160	High	Poor	1968	Hydroelectric
Kootenai Dvlpmnt Impoundment Dam	Montana	Lincoln	151	High	Poor	1980	Other
Midas Dam Tailings Storage Facility Ph V	Nevada	Elko	150	Significant	Poor	1998	Tailings
Bartletts Ferry, Main Dam	Georgia	Harris	150	High	Poor	1926	Hydroelectric
Savage	California	San Diego	149	High	Poor	1919	Water Supply
Lake Fordyce	California	Nevada	145	High	Poor	1873	Hydroelectric
West Fork Bitterroot (Painted Rocks)	Montana	Ravalli	143	High	Poor	1940	Irrigation
Logan Martin	Alabama	St. Clair	142	High	Poor	1964	Hydroelectric
Guadalupe	California	Santa Clara	142	High	Poor	1935	Water Supply
Coyote	California	Santa Clara	140	High	Poor	1936	Water Supply
Relief	California	Tuolumne	140	High	Poor	1909	Hydroelectric
Santiago Creek	California	Orange	136	High	Poor	1933	Water Supply
Tabeaud	California	Amador	136	High	Poor	1901	Hydroelectric
Round Valley North Dam	New Jersey	Hunterdon	135	High	Poor	1961	Water Supply
Elgo	Arizona	Graham	133	High	Poor	1979	Recreation
Newlan Creek Dam	Montana	Meagher	131	High	Poor	1977	Irrigation
Hubbart	Montana	Flathead	130	High	Poor	1923	Irrigation
Guayabal Dam	Puerto Rico	Villalba	130	High	Poor	1913	Irrigation
Mcclure Dam	New Mexico	Santa Fe	128	High	Poor	1926	Water Supply
Comerio Ii Dam	Puerto Rico	Comerío	128	High	Poor	1913	Hydroelectric
Patillas Dam	Puerto Rico	Patillas	127	High	Poor	1976	Hydroelectric
Cannon Creek Dam	Kentucky	Bell	125	High	Poor	1972	Water Supply
Inghams Dam	New York	Fulton	125	High	Poor	1911	Hydroelectric
Lake Mission Viejo	California	Orange	123	High	Poor	1976	Water Supply
Cranks Creek Lake Dam	Kentucky	Harlan	120	High	Poor	1963	Recreation
Guajataca Dam	Puerto Rico	Isabela	120	High	Poor	1927	Hydroelectric
T Or C Site 8c Dam	New Mexico	Sierra	119	High	Poor	1981	Flood Risk Reduction
Druid Hill Lake Reservoir and Storage Tanks	Maryland	Baltimore City	118	High	Poor	1871	Water Supply
Guineo Dam	Puerto Rico	Orocovis	115	High	Poor	1931	Hydroelectric
Little Pine Creek	Pennsylvania	Lycoming	113	High	Poor	1950	Flood Risk Reduction
Almaden	California	Santa Clara	110	High	Poor	1936	Other
Lake Maloya Dam	New Mexico	Colfax	110	High	Poor	1914	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.