{"ok":true,"data":{"source":"DamWatch USA curated educational records","authoritative":false,"verifyAt":"https://nid.sec.usace.army.mil/","count":30,"records":[{"id":"hoover","name":"Hoover Dam","state":"Nevada / Arizona","stateCode":"NV","lat":36.0161,"lng":-114.7377,"river":"Colorado River","year":1936,"heightFt":726,"type":"Concrete arch-gravity","purpose":"Hydroelectric, water supply, flood control","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":28500000,"summary":"One of the most iconic dams in the world, impounding Lake Mead, the largest reservoir in the U.S. by capacity."},{"id":"grand-coulee","name":"Grand Coulee Dam","state":"Washington","stateCode":"WA","lat":47.9565,"lng":-118.9814,"river":"Columbia River","year":1942,"heightFt":550,"type":"Concrete gravity","purpose":"Hydroelectric, irrigation","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":9562000,"summary":"The largest power-producing facility in the United States and a cornerstone of Pacific Northwest hydropower."},{"id":"oroville","name":"Oroville Dam","state":"California","stateCode":"CA","lat":39.5388,"lng":-121.485,"river":"Feather River","year":1968,"heightFt":770,"type":"Earthfill embankment","purpose":"Water supply, flood control, hydroelectric","owner":"California Dept. of Water Resources","hazard":"High","condition":"Fair","status":"Operational","storageAcreFt":3537577,"summary":"The tallest dam in the U.S. Its 2017 spillway crisis forced the evacuation of 180,000 residents and prompted a major national dam-safety reckoning."},{"id":"glen-canyon","name":"Glen Canyon Dam","state":"Arizona","stateCode":"AZ","lat":36.9375,"lng":-111.4838,"river":"Colorado River","year":1966,"heightFt":710,"type":"Concrete arch","purpose":"Hydroelectric, water storage","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Fair","status":"Operational","storageAcreFt":27000000,"summary":"Impounds Lake Powell. Chronic drought on the Colorado River has pushed reservoir levels toward critical minimum power-pool thresholds."},{"id":"fort-peck","name":"Fort Peck Dam","state":"Montana","stateCode":"MT","lat":48.0033,"lng":-106.4147,"river":"Missouri River","year":1940,"heightFt":250,"type":"Hydraulic earthfill","purpose":"Flood control, hydroelectric, navigation","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":18688000,"summary":"The largest hydraulically filled dam in the U.S. and a signature public-works project of the New Deal era."},{"id":"shasta","name":"Shasta Dam","state":"California","stateCode":"CA","lat":40.7185,"lng":-122.4192,"river":"Sacramento River","year":1945,"heightFt":602,"type":"Concrete gravity","purpose":"Water supply, flood control, hydroelectric","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":4552000,"summary":"Keystone of the Central Valley Project, storing water for millions of acres of California farmland."},{"id":"conowingo","name":"Conowingo Dam","state":"Maryland","stateCode":"MD","lat":39.6576,"lng":-76.1746,"river":"Susquehanna River","year":1928,"heightFt":102,"type":"Concrete gravity","purpose":"Hydroelectric","owner":"Constellation Energy","hazard":"High","condition":"Fair","status":"Operational","storageAcreFt":300000,"summary":"A major hydroelectric dam whose sediment trapping is central to Chesapeake Bay water-quality debates."},{"id":"wolf-creek","name":"Wolf Creek Dam","state":"Kentucky","stateCode":"KY","lat":36.8717,"lng":-85.1466,"river":"Cumberland River","year":1951,"heightFt":258,"type":"Concrete & earthfill","purpose":"Flood control, hydroelectric","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Under Rehab","storageAcreFt":6089000,"summary":"Underwent a $594M seepage-remediation grouting program after being placed on high alert for foundation failure risk."},{"id":"folsom","name":"Folsom Dam","state":"California","stateCode":"CA","lat":38.7079,"lng":-121.1573,"river":"American River","year":1955,"heightFt":340,"type":"Concrete gravity & earthfill","purpose":"Flood control, water supply, hydroelectric","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":977000,"summary":"Protects Sacramento, one of the most flood-prone major cities in the U.S. A $900M auxiliary spillway was completed in 2017."},{"id":"buford","name":"Buford Dam (Lake Lanier)","state":"Georgia","stateCode":"GA","lat":34.1592,"lng":-84.0736,"river":"Chattahoochee River","year":1956,"heightFt":192,"type":"Earthfill embankment","purpose":"Water supply, flood control, hydroelectric","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":2554000,"summary":"Primary water supply for metro Atlanta and the center of a decades-long tri-state water rights dispute."},{"id":"kentucky","name":"Kentucky Dam","state":"Kentucky","stateCode":"KY","lat":37.0126,"lng":-88.2803,"river":"Tennessee River","year":1944,"heightFt":206,"type":"Concrete & earthfill","purpose":"Navigation, flood control, hydroelectric","owner":"Tennessee Valley Authority","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":6129000,"summary":"Largest TVA dam by reservoir, anchoring navigation on the Tennessee River."},{"id":"tellico","name":"Tellico Dam","state":"Tennessee","stateCode":"TN","lat":35.7856,"lng":-84.2597,"river":"Little Tennessee River","year":1979,"heightFt":129,"type":"Earthfill & concrete","purpose":"Recreation, flood control, economic development","owner":"Tennessee Valley Authority","hazard":"Significant","condition":"Satisfactory","status":"Operational","storageAcreFt":424000,"summary":"Center of the landmark snail darter Endangered Species Act case, TVA v. Hill, decided by the U.S. Supreme Court."},{"id":"edenville","name":"Edenville Dam","state":"Michigan","stateCode":"MI","lat":43.7583,"lng":-84.3494,"river":"Tittabawassee River","year":1925,"heightFt":54,"type":"Earthfill embankment","purpose":"Hydroelectric (former)","owner":"Four Lakes Task Force","hazard":"High","condition":"Unsatisfactory","status":"Failed (historic)","summary":"Failed catastrophically in May 2020, flooding Midland and forcing 10,000 evacuations. A textbook case of deferred maintenance on aging private dams."},{"id":"teton","name":"Teton Dam (site)","state":"Idaho","stateCode":"ID","lat":43.9139,"lng":-111.5372,"river":"Teton River","year":1976,"heightFt":305,"type":"Earthfill embankment","purpose":"Irrigation, flood control (former)","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Not Rated","status":"Failed (historic)","summary":"Failed during first filling in June 1976, killing 11 people and reshaping federal dam-safety practice nationwide."},{"id":"johnstown","name":"South Fork Dam (site)","state":"Pennsylvania","stateCode":"PA","lat":40.3462,"lng":-78.7708,"river":"South Fork Little Conemaugh","year":1853,"heightFt":72,"type":"Earthfill embankment","purpose":"Recreation (former)","owner":"South Fork Fishing & Hunting Club","hazard":"High","condition":"Not Rated","status":"Failed (historic)","summary":"Its 1889 failure caused the Johnstown Flood, killing 2,209 people — the deadliest dam disaster in U.S. history."},{"id":"iron-gate","name":"Iron Gate Dam (removed)","state":"California","stateCode":"CA","lat":41.9294,"lng":-122.4425,"river":"Klamath River","year":1962,"heightFt":173,"type":"Earthfill embankment","purpose":"Hydroelectric (former)","owner":"Klamath River Renewal Corp.","hazard":"High","condition":"Not Rated","status":"Removed","summary":"Removed in 2024 as part of the largest dam-removal project in U.S. history, reopening 400+ miles of salmon habitat."},{"id":"glines-canyon","name":"Glines Canyon Dam (removed)","state":"Washington","stateCode":"WA","lat":48.0117,"lng":-123.5906,"river":"Elwha River","year":1927,"heightFt":210,"type":"Concrete arch (former)","purpose":"Hydroelectric (former)","owner":"National Park Service","hazard":"High","condition":"Not Rated","status":"Removed","summary":"Removal completed in 2014 restored the Elwha River through Olympic National Park — a landmark ecological recovery."},{"id":"garrison","name":"Garrison Dam","state":"North Dakota","stateCode":"ND","lat":47.5044,"lng":-101.4247,"river":"Missouri River","year":1953,"heightFt":210,"type":"Earthfill embankment","purpose":"Flood control, hydroelectric, navigation","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":23800000,"summary":"One of the largest earthen dams in the world, impounding Lake Sakakawea."},{"id":"roosevelt","name":"Theodore Roosevelt Dam","state":"Arizona","stateCode":"AZ","lat":33.6717,"lng":-111.1547,"river":"Salt River","year":1911,"heightFt":357,"type":"Concrete gravity (masonry core)","purpose":"Water supply, flood control, hydroelectric","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":1653000,"summary":"The first major project of the Reclamation Act; its reservoir made modern Phoenix possible."},{"id":"norris","name":"Norris Dam","state":"Tennessee","stateCode":"TN","lat":36.2201,"lng":-84.0921,"river":"Clinch River","year":1936,"heightFt":265,"type":"Concrete gravity","purpose":"Flood control, hydroelectric","owner":"Tennessee Valley Authority","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":2567000,"summary":"The first dam built by the TVA, launching the New Deal transformation of the Tennessee Valley."},{"id":"kensico","name":"Kensico Dam","state":"New York","stateCode":"NY","lat":41.0674,"lng":-73.7674,"river":"Bronx River watershed","year":1917,"heightFt":307,"type":"Masonry gravity","purpose":"Water supply","owner":"NYC Dept. of Environmental Protection","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":30600,"summary":"A key terminal reservoir for New York City’s drinking-water system."},{"id":"guntersville","name":"Guntersville Dam","state":"Alabama","stateCode":"AL","lat":34.424,"lng":-86.393,"river":"Tennessee River","year":1939,"heightFt":94,"type":"Concrete & earthfill","purpose":"Navigation, hydroelectric, flood control","owner":"Tennessee Valley Authority","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":1052000,"summary":"Creates Alabama’s largest lake and a major navigation link on the Tennessee River."},{"id":"canyon-ferry","name":"Canyon Ferry Dam","state":"Montana","stateCode":"MT","lat":46.6511,"lng":-111.7247,"river":"Missouri River","year":1954,"heightFt":225,"type":"Concrete gravity","purpose":"Hydroelectric, irrigation, recreation","owner":"U.S. Bureau of Reclamation","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":1997000,"summary":"A popular recreation reservoir and power producer on the upper Missouri."},{"id":"table-rock","name":"Table Rock Dam","state":"Missouri","stateCode":"MO","lat":36.5967,"lng":-93.3122,"river":"White River","year":1958,"heightFt":252,"type":"Concrete & earthfill","purpose":"Flood control, hydroelectric, recreation","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Fair","status":"Operational","storageAcreFt":3462000,"summary":"Anchors the Branson recreation economy in the Missouri Ozarks."},{"id":"sam-rayburn","name":"Sam Rayburn Dam","state":"Texas","stateCode":"TX","lat":31.0658,"lng":-94.1108,"river":"Angelina River","year":1965,"heightFt":100,"type":"Earthfill embankment","purpose":"Flood control, water supply, hydroelectric","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":3997600,"summary":"Impounds the largest reservoir wholly within Texas."},{"id":"briery-branch","name":"Briery Branch Dam","state":"Virginia","stateCode":"VA","lat":38.398,"lng":-79.183,"river":"Lower North River","year":1966,"heightFt":88,"type":"Earthen flood control","purpose":"Flood control","owner":"Shenandoah Valley SWCD","hazard":"Significant","condition":"Fair","status":"Operational","summary":"One of eight flood-control structures operated by the Shenandoah Valley Soil & Water Conservation District — the inspiration for this atlas."},{"id":"switzer","name":"Switzer Dam","state":"Virginia","stateCode":"VA","lat":38.474,"lng":-79.208,"river":"Lower North River","year":1972,"heightFt":143,"type":"Water storage & earthen flood control","purpose":"Municipal water supply, flood control","owner":"City of Harrisonburg","hazard":"High","condition":"Fair","status":"Operational","summary":"Tallest of the Shenandoah Valley structures, providing municipal water storage for Harrisonburg, VA."},{"id":"gavins-point","name":"Gavins Point Dam","state":"South Dakota","stateCode":"SD","lat":42.8556,"lng":-97.4869,"river":"Missouri River","year":1957,"heightFt":74,"type":"Earthfill & concrete","purpose":"Flood control, hydroelectric, navigation","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":492000,"summary":"The final dam on the Missouri River main-stem system, controlling downstream flows to the Gulf."},{"id":"john-day","name":"John Day Dam","state":"Oregon","stateCode":"OR","lat":45.7153,"lng":-120.6936,"river":"Columbia River","year":1971,"heightFt":184,"type":"Concrete gravity","purpose":"Hydroelectric, navigation","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Satisfactory","status":"Operational","storageAcreFt":2500000,"summary":"Features one of the highest single-lift navigation locks in the world."},{"id":"lewiston","name":"Lower Granite Dam","state":"Washington","stateCode":"WA","lat":46.6603,"lng":-117.4278,"river":"Snake River","year":1975,"heightFt":181,"type":"Concrete gravity","purpose":"Navigation, hydroelectric","owner":"U.S. Army Corps of Engineers","hazard":"High","condition":"Fair","status":"Operational","storageAcreFt":484000,"summary":"One of four lower Snake River dams at the center of a national debate over salmon recovery and possible breaching."}]}}