Other Dams
8,898 dams in the US serve this purpose.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Sims W.M. Okmulgee | Low Hazard | 18 ft | 1950 | Earth | Oklahoma |
| Sinaloa Lake Ventura | High Hazard | 30 ft | 1925 | Earth | California |
| Sinclair Lake Dam Sampson | Low Hazard | — | — | Earth | North Carolina |
| Singer Ditch (Hawthorne Mine) Dam Greene | Low Hazard | 22 ft | 1965 | Earth | Indiana |
| Singletary Lake Dam # 2 Thomas | Low Hazard | 19 ft | 1960 | Earth | Georgia |
| Singletary Lake Dam #3 Thomas | Low Hazard | 18 ft | 1960 | Earth | Georgia |
| Sinnard Goshen | Significant Hazard | 26 ft | 1935 | Earth | Wyoming |
| Sipc/Southern Delta/Freshwater Impoundment Dam Saline | Low Hazard | 26 ft | 1976 | Earth | Illinois |
| Sipc/Southern Delta/Slurry Impoundment Dam Saline | Low Hazard | 34 ft | 1976 | Earth | Illinois |
| Sirmans and Locke Dam Roberts | Low Hazard | 26 ft | 1957 | Earth | Texas |
| Sirucek Reservoir Jerome | Low Hazard | 17 ft | 2003 | — | Idaho |
| Site Iv 1 Gss Foard | Low Hazard | 29 ft | 1977 | Earth | Texas |
| Site No 10 Wabaunsee | Unknown | 25 ft | 1980 | Earth | Kansas |
| Sivley Lake Dam Little River | Significant Hazard | — | 1954 | Earth | Arkansas |
| Six Mile Creek Cass | Low Hazard | 15 ft | 1975 | Earth | Minnesota |
| Six Pond Dam 1 Montgomery | Low Hazard | 25 ft | 1961 | Earth | Illinois |
| Sjuts Home Lagoon Dam Platte | Low Hazard | 33 ft | 1998 | Earth | Nebraska |
| Skalsky Pond # 1 Dam Prince George | Unknown | 18 ft | — | Earth | Virginia |
| Skalsky Pond # 2 Dam Prince George | Unknown | 22 ft | — | Earth | Virginia |
| Skaneateles Creek Dam Onondaga | Low Hazard | 22 ft | — | Other | New York |
| Skellinger Lake Dam Sussex | Significant Hazard | 16 ft | — | Earth | New Jersey |
| Skinframe Creek Impoundment Lyon | Low Hazard | 31 ft | 1950 | Earth | Kentucky |
| Skipper Lake Dam Gregg | Significant Hazard | 22 ft | 1965 | Earth | Texas |
| Skrdle Frank L. Comanche | Low Hazard | 22 ft | 1955 | Earth | Oklahoma |
| Slack Gila | Low Hazard | 50 ft | 1995 | Rockfill | Arizona |
| Slack Owyhee | Low Hazard | 20 ft | 1916 | — | Idaho |
| Slatten Lake Dam Harrison | Significant Hazard | 33 ft | 1985 | — | Missouri |
| Sledge Olen Stephens | Low Hazard | 22 ft | 1975 | Earth | Oklahoma |
| Slick Rock Detention Dam Graham | Low Hazard | — | 1981 | Gravity | Arizona |
| Sline Swine Lagoon 3 Dam Jefferson | Low Hazard | 39 ft | 2001 | Earth | Nebraska |
| Slippery Corners Dam Oswego | Low Hazard | 9 ft | 1959 | Earth | New York |
| S L Reed Lake Humphreys | Low Hazard | 8 ft | 1973 | Earth | Mississippi |
| S L Reed Lake Humphreys | Low Hazard | 8 ft | 1970 | Earth | Mississippi |
| Sludge Bed No 4 Butler | High Hazard | 30 ft | 1984 | Earth | Pennsylvania |
| Sludge Bed No 5 Butler | High Hazard | 37 ft | 1983 | Earth | Pennsylvania |
| Sludge Bed No 6 Butler | High Hazard | 88 ft | 1983 | Earth | Pennsylvania |
| Sludge Fill Pond Levee No 1 Harris | Low Hazard | 19 ft | 1976 | Earth | Texas |
| Sludge Pond Levee No 1 Harris | Low Hazard | 12 ft | 1966 | Earth | Texas |
| Slurry Impoundment - Johns Washer Jefferson | Low Hazard | — | 1979 | Earth | Alabama |
| Slurry Lake Ii Union | Low Hazard | 20 ft | — | Earth | Kentucky |
| Slurry Lake Iii Union | Low Hazard | 21 ft | — | Earth | Kentucky |
| Slurry Pond Hernando | Low Hazard | 20 ft | 1979 | Earth | Florida |
| Slush Pond Hernando | Low Hazard | 50 ft | 1957 | Earth | Florida |
| Smart S Compost Dam Hall | Low Hazard | 24 ft | 2022 | Earth | Nebraska |
| Smelt Brook Dam Norfolk | High Hazard | 15 ft | 1975 | Gravity | Massachusetts |
| Smiley Sewage Lagoon Dam Jones | Unknown | 15 ft | — | Earth | Mississippi |
| Smith & Able Enterprises INC Canadian | Low Hazard | 25 ft | 1984 | Earth | Oklahoma |
| Smith Brook Lower Dam Lewis | Low Hazard | 8 ft | 1937 | Earth | New York |
| Smith Brothers Dairy Storage Lagoon Grant | Low Hazard | — | 2001 | Earth | Washington |
| Smith, C.A. Reservoir Coos | Low Hazard | 10 ft | 1916 | Earth | Oregon |