Tailings Dams

1,362 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Mulberry S Polk	Significant Hazard	100 ft	—	Earth	Florida
Mulberry S (1) Polk	Significant Hazard	100 ft	—	Earth	Florida
Mulberry S (2) Polk	Significant Hazard	100 ft	—	Earth	Florida
Mulberry W Polk	Significant Hazard	100 ft	—	Earth	Florida
Mulberry W Polk	Significant Hazard	100 ft	—	Earth	Florida
Mulberry W (Ctr) Polk	Significant Hazard	100 ft	—	Earth	Florida
Muskingum River Lower Fly Ash Dam Washington	High Hazard	75 ft	1968	Earth	Ohio
Muskingum River Middle Fly Ash Dam Washington	High Hazard	100 ft	1968	Earth	Ohio
Muskingum River Upper Fly Ash Dam Washington	High Hazard	152 ft	1975	Earth	Ohio
N1 Cf North Hardee	Significant Hazard	40 ft	1980	Earth	Florida
N-1 Settling Area Hardee	Significant Hazard	35 ft	1978	Earth	Florida
N-4 Rockland Mine Polk	Significant Hazard	40 ft	—	Earth	Florida
National Lead Industries Dam Washington	High Hazard	99 ft	1959	Earth	Missouri
National Steel-Ohio River Site Wayne	Unknown	65 ft	1963	Rockfill	West Virginia
Neutralized Water Impoundment 2 Knox	Significant Hazard	22 ft	1989	Earth	Ohio
Neutralized Water Impoundment 3 Knox	Significant Hazard	20 ft	1997	Earth	Ohio
Newsome Millpond Dam Warren	Low Hazard	13 ft	—	Earth	Georgia
Newsome Tailing Pond Dam Warren	Low Hazard	60 ft	1992	Earth	Georgia
New Viburnum Tailings Dam Iron	High Hazard	150 ft	1981	Other	Missouri
New Vienna Wastewater Treatment Lagoons Clinton	Significant Hazard	14 ft	1987	Earth	Ohio
New West Hollow Refuse Dam	High Hazard	—	—	Other	West Virginia
Ni 1 (Nichols) Polk	High Hazard	43 ft	1971	Earth	Florida
Ni 2 (Nichols) Polk	High Hazard	43 ft	1973	Earth	Florida
Nichols Cooling Pond Wa Polk	Significant Hazard	25 ft	1990	Earth	Florida
Nichols Cooling Pond Wb Polk	Significant Hazard	25 ft	1990	Earth	Florida
Nichols (E) Polk	Significant Hazard	100 ft	—	Earth	Florida
Nichols (E-Center) Polk	Significant Hazard	100 ft	—	Earth	Florida
Nichols N-3 Polk	Significant Hazard	52 ft	1975	Earth	Florida
Nichols N-4 Polk	Significant Hazard	60 ft	1978	Earth	Florida
Nichols (W) Polk	Significant Hazard	100 ft	—	Earth	Florida
Nichols (W-Center) Polk	Significant Hazard	100 ft	—	Earth	Florida
Nixon Fork Tailings Dam Yukon-Koyukuk Census Area	Significant Hazard	64 ft	1995	Earth	Alaska
No. 2 Dam of 4 Kingstowne Park Impoundments Fairfax	Significant Hazard	25 ft	—	Other	Virginia
No. 2 Slurry Pond Belmont	High Hazard	300 ft	—	Earth	Ohio
No. 3 Tailings Sweetwater	Low Hazard	19 ft	1980	Earth	Wyoming
No. 5a Sweetwater	Low Hazard	58 ft	1975	Earth	Wyoming
No. Fork Forked Deer #13a Gibson	Significant Hazard	—	1999	Earth	Tennessee
Nolan Run Slurry Impoundment Harrison	High Hazard	133 ft	—	Earth	West Virginia
Noralyn Gaskins Polk	Significant Hazard	12 ft	—	Earth	Florida
Noralyn N-11a Polk	Significant Hazard	25 ft	1963	Earth	Florida
Noralyn N-11b Polk	Significant Hazard	14 ft	1964	Earth	Florida
Noralyn N-13 Polk	Significant Hazard	25 ft	1978	Earth	Florida
Noralyn N-14 Polk	High Hazard	45 ft	1976	Earth	Florida
Noralyn N-2 Polk	Significant Hazard	40 ft	—	Earth	Florida
Noralyn N-3 Polk	Significant Hazard	12 ft	1953	Earth	Florida
Noralyn N-4 Polk	Significant Hazard	36 ft	1958	Earth	Florida
Noralyn N-5 Polk	Significant Hazard	49 ft	1958	Earth	Florida
Noralyn N-8 Polk	Significant Hazard	24 ft	1967	Earth	Florida
Nord Impound #2 Dam Emanuel	Low Hazard	71 ft	1981	Earth	Georgia
North Block Tailings Impoundment Dam Eureka	High Hazard	520 ft	1993	Earth	Nevada