Tailings Dams

1,362 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
H-2 Settling Area Polk	Significant Hazard	34 ft	1978	Earth	Florida
Half Mile Dam Leslie	High Hazard	545 ft	—	Earth	Kentucky
Hamilton Lime Sludge Lagoon Butler	Significant Hazard	11 ft	1992	Earth	Ohio
Hanson Agg Brewer Upr Dam Chesterfield	Low Hazard	53 ft	1999	—	South Carolina
Hap Cremean Lagoon #1 Franklin	Significant Hazard	14 ft	2011	Earth	Ohio
Hap Cremean Lagoon #2 Franklin	Significant Hazard	12 ft	2010	Earth	Ohio
Har01 Hardee	Unknown	7 ft	—	Earth	Florida
Har02 Hardee	Unknown	8 ft	—	Earth	Florida
Har1 Hardee	Unknown	7 ft	—	Earth	Florida
Har2 Hardee	Unknown	7 ft	—	Earth	Florida
Har3 Hardee	Unknown	7 ft	—	Earth	Florida
Har4 Hardee	Unknown	7 ft	—	Earth	Florida
Har5 Hardee	Unknown	16 ft	—	Earth	Florida
Har6 Hardee	Unknown	16 ft	—	Earth	Florida
Har7 Hardee	Unknown	23 ft	—	Earth	Florida
Har8 Manatee	Unknown	7 ft	—	Earth	Florida
Har9 Manatee	Unknown	7 ft	—	Earth	Florida
Harmon Branch Refuse Disposal Facility McDowell	High Hazard	294 ft	—	Earth	West Virginia
Harris Branch Slurry Dam Perry	High Hazard	150 ft	—	Earth	Kentucky
Harvey Run No. 2 Slurry Impoundment Monongalia	High Hazard	83 ft	—	Earth	West Virginia
Harvey Run Slurry Cr Dam	High Hazard	—	—	—	West Virginia
Hastie Mining//Pond 1-Clarification Pond Dam Hardin	Low Hazard	49 ft	2000	Earth	Illinois
Hastie Mining//Tailings Pond 2-3 Dam Hardin	Low Hazard	41 ft	—	Earth	Illinois
Hay Hollow Reservoir Dam Pike	Low Hazard	34 ft	1952	Earth	Ohio
Headworks Reservoir East Los Angeles	Low Hazard	32 ft	2016	Other	California
Headworks Reservoir West Los Angeles	Low Hazard	32 ft	2022	Other	California
Hecla-Day Mine Aspen Tailings Dam Ferry	Significant Hazard	—	1940	Earth	Washington
Hecla-Day Mine Aspen Tailings Saddle Dam Ferry	Significant Hazard	—	1987	Earth	Washington
Hedrick Tailings Dike #1 (Lower #8 Pond Dam) Anson	Low Hazard	—	1982	Earth	North Carolina
Hedrick Tailings Dike #2 Anson	Significant Hazard	—	1983	Earth	North Carolina
Hedrick Talings Dike #1 Anson	Significant Hazard	—	—	Earth	North Carolina
Heimos Lake Dam Washington	High Hazard	37 ft	1955	Other	Missouri
Henderson Clay Products Lake Dam Rusk	Low Hazard	13 ft	1965	Earth	Texas
Henry # 1 Lake Dam Scott	Low Hazard	30 ft	2015	Earth	Mississippi
Her05 Hernando	Unknown	16 ft	—	Earth	Florida
Hibbing Taconite Reclaim Pond St. Louis	High Hazard	100 ft	—	Earth	Minnesota
Hibbing Taconite Starter No. 2 St. Louis	Unknown	100 ft	1975	Earth	Minnesota
Hibbing Taconite Starter No. 4 St. Louis	Unknown	100 ft	—	Earth	Minnesota
Hibbing Taconite Tailings Basin St. Louis	High Hazard	100 ft	—	Earth	Minnesota
High Ridge Slurry Impoundment Pike	High Hazard	285 ft	—	Earth	Kentucky
Hil10 Hillsborough	Unknown	14 ft	—	Earth	Florida
Hil11 Hillsborough	Unknown	13 ft	—	Earth	Florida
Hil12 Hillsborough	Unknown	32 ft	—	Earth	Florida
Hil13 Hillsborough	Unknown	16 ft	—	Earth	Florida
Hil14 Hillsborough	Unknown	6 ft	—	Earth	Florida
Hil16 Hillsborough	Unknown	18 ft	—	Earth	Florida
Hil17 Hillsborough	Unknown	8 ft	—	Earth	Florida
Hil18 Hillsborough	Unknown	12 ft	—	Earth	Florida
Hil19 Hillsborough	Unknown	20 ft	—	Earth	Florida
Hil20 Hillsborough	Unknown	8 ft	—	Earth	Florida