Tailings Dams

1,362 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Hil21 Hillsborough	Unknown	51 ft	—	Earth	Florida
Hil410 Hillsborough	Unknown	7 ft	—	Earth	Florida
Hil7 Hillsborough	Unknown	13 ft	—	Earth	Florida
Hil8 Hillsborough	Unknown	44 ft	—	Earth	Florida
Hill Annex Dike 1 Itasca	Low Hazard	65 ft	1920	Earth	Minnesota
Hill Annex Dike 3 Itasca	Significant Hazard	63 ft	1954	Earth	Minnesota
Hillsboro Energy/Deer Run/Crd 1 Dam Montgomery	High Hazard	80 ft	—	Earth	Illinois
Hl2 Hillsborough	Significant Hazard	6 ft	—	Earth	Florida
Holden #22 Slurry Impoundment Logan	High Hazard	355 ft	—	Earth	West Virginia
Holman Clear Water Pond Itasca	Low Hazard	49 ft	2012	Earth	Minnesota
Holman Tailings Basin Itasca	Significant Hazard	45 ft	—	Earth	Minnesota
Holz Dam Kanawha	High Hazard	203 ft	1972	Rockfill	West Virginia
Homestake Copper Dam Houghton	Low Hazard	21 ft	1975	Earth	Michigan
Homestake Tailings Lake	High Hazard	169 ft	1990	Earth	California
Hookers Prairie Mine H2c Polk	Significant Hazard	35 ft	1995	Earth	Florida
Hopewell Csa-Hl1 Hillsborough	Significant Hazard	35 ft	1982	Earth	Florida
Hopewell Csa Hl3 Hillsborough	Significant Hazard	32 ft	1997	Earth	Florida
Hopewell Csa-Hl-4 Hillsborough	Significant Hazard	37 ft	2004	Earth	Florida
Horsehead Creek Lake Dam Macon	Low Hazard	19 ft	1976	Earth	Georgia
Horse Run No. 1 Dam Mb-42 Morgan	Significant Hazard	60 ft	1952	Earth	Ohio
Horse Run No. 3 Dam Mb-40 Morgan	Significant Hazard	42 ft	1961	Earth	Ohio
Howell Mine Dam Washington	High Hazard	58 ft	1954	Earth	Missouri
Hs Jackson Sand & Gravel Dam No 1 Denton	Low Hazard	15 ft	1972	Earth	Texas
Huber Effluent Pond #5 McMinn	Significant Hazard	—	1979	Earth	Tennessee
Huber Wrens Plant Wastewater Pond Dam Jefferson	Low Hazard	59 ft	1962	Earth	Georgia
Hughes Hollow Slurry Imp. Monongalia	High Hazard	50 ft	—	Earth	West Virginia
Hunner Tailings Itasca	Low Hazard	25 ft	1956	Earth	Minnesota
Hutton 4-24-5684 Sheridan	Low Hazard	10 ft	2010	Earth	Wyoming
Icon Materials Pond 4 King	Significant Hazard	—	1997	Earth	Washington
Iluka Pond 1500 Dam Sussex	Low Hazard	18 ft	—	Earth	Virginia
Imc-K-035 Polk	Significant Hazard	35 ft	1975	Earth	Florida
Imco Tailings Dam Lander	Low Hazard	70 ft	1975	Earth	Nevada
Imerys 5c Clay Impoundment Dam Washington	High Hazard	67 ft	1980	Earth	Georgia
Imp No.1 Jefferson	Low Hazard	100 ft	—	—	Alabama
Imp No.1 Walker	Significant Hazard	40 ft	—	—	Alabama
Imp. No. 1 Walker	Significant Hazard	35 ft	—	—	Alabama
Imp No.2 Jefferson	Significant Hazard	50 ft	—	—	Alabama
Impoundment C-66 Freestone	Low Hazard	24 ft	1989	Earth	Texas
Impoundment No.1 Chippewa	High Hazard	30 ft	—	Earth	Michigan
Indiana Harbor Canal Confined Disposal Facility Lake	High Hazard	21 ft	2011	Earth	Indiana
Indian Creek Mine Dam-Lower Washington	High Hazard	84 ft	1975	Earth	Missouri
Indian Creek Mine Dam - Upper Washington	High Hazard	—	1980	Other	Missouri
Inland Steel Tailings St. Louis	High Hazard	44 ft	1976	Earth	Minnesota
International Paper Company Cell No. 1 Lake Dam Macon	Low Hazard	11 ft	1979	Earth	Georgia
International Paper Company Cell No. 2 Lake Dam Macon	Low Hazard	14 ft	1979	Earth	Georgia
International Paper Company Lake Dam Macon	Low Hazard	22 ft	1979	Earth	Georgia
International Paper Company Stabilization Basin Dam Macon	Low Hazard	13 ft	1979	Earth	Georgia
Intrepid Potash Ponds 1-5 Dam Eddy	Significant Hazard	12 ft	—	Earth	New Mexico
Intrepid Potash Ponds A-D Dam Eddy	Significant Hazard	14 ft	—	Earth	New Mexico
Intrepid Potash South Perimeter Dam Eddy	Significant Hazard	29 ft	—	Earth	New Mexico