Tailings Dams

1,362 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Silver City Sa No 6 Ph2 Polk	Low Hazard	50 ft	1972	Earth	Florida
Silver City Sa No 6 Phase 1 Polk	Low Hazard	45 ft	1970	Earth	Florida
Silver City Sa No 7 Polk	Low Hazard	22 ft	1974	Earth	Florida
Silver Lake Dam Jefferson	High Hazard	80 ft	1981	Earth	Missouri
Simco-Peabody Sediment Pond E-1 Dam Muskingum	Low Hazard	32 ft	1982	Earth	Ohio
Simco-Peabody Sediment Pond No. 28 Dam Muskingum	Low Hazard	26 ft	1984	Earth	Ohio
Simplot Decant Pond Power	Low Hazard	21 ft	2009	—	Idaho
Simplot Silica Tailings Raise Dam Clark	Low Hazard	100 ft	2014	Earth	Nevada
Simplot Tailings Dam Clark	Low Hazard	185 ft	1981	Earth	Nevada
Skyrocket Calaveras	High Hazard	43 ft	1999	Earth	California
Slippery Gut Branch Cr Dam	High Hazard	—	—	Other	West Virginia
Slurry #1 Meigs	High Hazard	190 ft	—	Earth	Ohio
Slurry Imp. No. 1	High Hazard	—	—	—	Alabama
Slurry Impoundment Saline	Significant Hazard	34 ft	—	Earth	Illinois
Slurry Impoundment 401 Breathitt	High Hazard	280 ft	—	Earth	Kentucky
Slurry Impoundment Cfd-1 Muhlenberg	Significant Hazard	30 ft	—	Earth	Kentucky
Slurry Impoundment Cfd-2 Muhlenberg	Low Hazard	10 ft	—	Earth	Kentucky
Slurry Impoundment Cfd-3 Muhlenberg	Low Hazard	65 ft	—	Earth	Kentucky
Slurry Lake 04i Union	High Hazard	86 ft	—	Earth	Kentucky
Slurry Lake 07i Union	High Hazard	69 ft	—	Earth	Kentucky
Slurry Lake Iv Union	High Hazard	65 ft	—	Earth	Kentucky
Slurry Pond #2 Indiana	Significant Hazard	40 ft	—	Earth	Pennsylvania
Slurry Pond No. 1 Greene	Low Hazard	90 ft	—	Earth	Pennsylvania
Smith Branch Cr Dam	High Hazard	—	—	Other	West Virginia
Smoky Canyon No 1 Caribou	Low Hazard	80 ft	1983	—	Idaho
Smoky Canyon No 2 Caribou	Significant Hazard	108 ft	1992	—	Idaho
So2 Pond Fort Meade Polk	Low Hazard	15 ft	1975	Earth	Florida
Solid Waste Disposal Cell C Sweetwater	Low Hazard	18 ft	2011	Earth	Wyoming
Solid Waste Disposal Cell D Sweetwater	Low Hazard	46 ft	1977	Other	Wyoming
Solid Waste Disposal Cell J Sweetwater	Low Hazard	40 ft	2011	Earth	Wyoming
Solite Corp. Dam Buckingham	Unknown	18 ft	—	Earth	Virginia
Sonora Buckskin Tails Dam Douglas	Low Hazard	36 ft	—	Earth	Nevada
South Hopewell Eleanor Area Hillsborough	Low Hazard	20 ft	1950	Earth	Florida
South Pasture Isa Hardee	Significant Hazard	45 ft	1990	Earth	Florida
South Pierce Chem Works Gypsum Polk	Low Hazard	40 ft	1964	Earth	Florida
South Pierce Chem Works Secondary Polk	Low Hazard	32 ft	1964	Earth	Florida
South Ridgewood/Clark James Dam Polk	Low Hazard	20 ft	1969	Earth	Florida
South Slurry Pond Washington	Low Hazard	60 ft	—	Earth	Pennsylvania
South Vienna Wwt Lagoons Clark	Significant Hazard	26 ft	1992	Earth	Ohio
Sp 2 Dam Choctaw	Low Hazard	19 ft	1999	Earth	Mississippi
Sp-4 Dam Choctaw	Low Hazard	18 ft	2004	Earth	Mississippi
Sporn Bottom Ash Dam Mason	Significant Hazard	42 ft	—	Other	West Virginia
Sporn Unit 5 Flyash Dam Mason	Significant Hazard	65 ft	—	Earth	West Virginia
Spring Branch (Holden #25) Dam	High Hazard	—	—	—	West Virginia
Springer Tungsten Dam Pershing	Low Hazard	18 ft	1982	Earth	Nevada
Springfield Coal/Crown 3/Fine Refuse Ext 2 Dam Macoupin	High Hazard	27 ft	—	Earth	Illinois
Springfield Coal/Industry/Pond 29 Dam Schuyler	Low Hazard	30 ft	—	Earth	Illinois
Springfield Coal/Industry/Pond 30 Dam Schuyler	Low Hazard	36 ft	—	Earth	Illinois
Sprouse Creek Cr Dam	High Hazard	—	—	Other	West Virginia
Stark Lime Sludge Lagoon Stark	Significant Hazard	34 ft	—	Earth	Ohio