Navigation Dams

388 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Pickwick Landing Dam Hardin	High Hazard	51 ft	1938	Concrete	Tennessee
Pike Island Locks and Dam Ohio	Significant Hazard	—	1965	Gravity	West Virginia
Pine River Dam Crow Wing	High Hazard	23 ft	1886	Concrete	Minnesota
Point Marion Lock and Dam Greene	Significant Hazard	—	1959	Gravity	Pennsylvania
Pokegama Dam Itasca	Significant Hazard	17 ft	1884	Concrete	Minnesota
Potsdam - East Dam St. Lawrence	Low Hazard	7 ft	1903	Masonry	New York
Potsdam - West Dam St. Lawrence	Low Hazard	11 ft	1990	Concrete	New York
Prairie Portage	Low Hazard	10 ft	1975	Concrete	Minnesota
Racine Locks and Dam Mason	Significant Hazard	—	1971	Concrete	West Virginia
Ragged Lake Piscataquis	Low Hazard	30 ft	1937	Earth	Maine
Rapide Croche Lock and Dam Outagamie	Significant Hazard	—	1930	Concrete	Wisconsin
Rathbun Dam Appanoose	High Hazard	—	1972	Earth	Iowa
Red River Lock and Dam 3 Natchitoches	Significant Hazard	—	1991	Gravity	Louisiana
Ripogenus Piscataquis	High Hazard	83 ft	1916	Concrete	Maine
Robert C. Byrd Locks and Dam Mason	Significant Hazard	—	1937	Concrete	West Virginia
Robert F. Henry Lock and Dam Lowndes	Significant Hazard	—	1974	Gravity	Alabama
Robert S. Kerr Lock and Dam Le Flore	High Hazard	75 ft	1970	Gravity	Oklahoma
Russell B. Long Lock and Dam Red River	Significant Hazard	—	1995	Gravity	Louisiana
S-65 Osceola	Significant Hazard	40 ft	1964	Earth	Florida
S-65a Osceola	Low Hazard	35 ft	1967	Earth	Florida
Sand Lake Dam Herkimer	Low Hazard	30 ft	1901	Masonry	New York
Sandy Lock and Dam Aitkin	Low Hazard	14 ft	1895	Earth	Minnesota
Santee Berkeley	High Hazard	50 ft	1942	Earth	South Carolina
Schoolfield Danville	Significant Hazard	33 ft	1904	Gravity	Virginia
Seboomook Lake Somerset	High Hazard	60 ft	1936	Concrete	Maine
Seneca Falls Seneca	High Hazard	68 ft	1912	Concrete	New York
S. Greece Waste Weir Dam Monroe	High Hazard	19 ft	1918	Earth	New York
Shasta Shasta	High Hazard	602 ft	1945	Concrete	California
Shelbyville Dam Shelby	High Hazard	108 ft	1970	Concrete	Illinois
Sluice Gate E-6 Parking Lot Dam Saratoga	High Hazard	33 ft	1918	Earth	New York
Smithland Locks and Dam Livingston	Significant Hazard	—	1980	Concrete	Illinois
Songo Lock Cumberland	Low Hazard	19 ft	1830	Concrete	Maine
Soo Locks Chippewa	High Hazard	—	1921	Concrete	Michigan
Spencerport Waste Weir Dam Monroe	High Hazard	17 ft	1918	Concrete	New York
Spillway E-2 Bypass Dam Saratoga	High Hazard	15 ft	1918	Earth	New York
St. Anthony Falls Lower Lock and Dam Hennepin	Significant Hazard	41 ft	1956	Concrete	Minnesota
St. Anthony Falls Upper Lock and Dam Hennepin	Significant Hazard	83 ft	1963	Concrete	Minnesota
Starved Rock Lock and Dam LaSalle	Significant Hazard	—	1933	Concrete	Illinois
Station 26 Monroe	Significant Hazard	18 ft	1952	Gravity	New York
St. Lucie Lock and Dam Martin	Significant Hazard	—	1950	—	Florida
Stockton Dam Cedar	High Hazard	—	1969	Rockfill	Missouri
Stone Dam Penobscot	High Hazard	27 ft	1900	Concrete	Maine
Stone Dam - Dike 1 Penobscot	Low Hazard	10 ft	1900	Earth	Maine
Stone Dam - Dike 2 Penobscot	Low Hazard	10 ft	1900	Earth	Maine
Stone Dam - Dike 3 Penobscot	Low Hazard	10 ft	1900	Earth	Maine
Stone Dam - Dike 4 Penobscot	Low Hazard	9 ft	1900	Earth	Maine
Stone Dam - Dike 5 Penobscot	Low Hazard	9 ft	1900	Earth	Maine
Stone Dam - Dike 6 Penobscot	Low Hazard	9 ft	1900	Earth	Maine
Stone Dam - Dike 7 Penobscot	Low Hazard	9 ft	1900	Earth	Maine
Stone Dam - Dike 8 Penobscot	High Hazard	9 ft	1900	Earth	Maine