Low Hazard Dams
No probable loss of human life and low economic/environmental losses expected.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Willow Creek Watershed Dam A- 28 Ray | Low Hazard | 28 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 30 Ray | Low Hazard | 25 ft | 1972 | Earth | Missouri |
| Willow Creek Watershed Dam B-22 Ray | Low Hazard | 33 ft | 1971 | Earth | Missouri |
| Willow Creek Watershed Dam C- 21 Ray | Low Hazard | 31 ft | 1972 | Earth | Missouri |
| Willow Dam Jefferson | Low Hazard | 33 ft | 1900 | Earth | Kentucky |
| Willow Glenn Johnson | Low Hazard | 30 ft | 1959 | Earth | Wyoming |
| Willow Lake Larimer | Low Hazard | 17 ft | 1957 | Earth | Colorado |
| Willow Lake Dam Rolette | Low Hazard | 16 ft | 1930 | Earth | North Dakota |
| Willow Lake Dam De Soto | Low Hazard | 40 ft | 1955 | Earth | Louisiana |
| Willow Lake Dam Harrison | Low Hazard | 31 ft | 1976 | Earth | Iowa |
| Willow Lake Dam Lamar | Low Hazard | 22 ft | 1976 | Earth | Texas |
| Willow Lake Dam San Patricio | Low Hazard | 20 ft | 1970 | Earth | Texas |
| Willow Lake Dam Van Zandt | Low Hazard | 27 ft | 1928 | Earth | Texas |
| Willow Lake Estates Dam Monroe | Low Hazard | 17 ft | 1996 | Earth | Illinois |
| Willow Marsh Dam Posey | Low Hazard | 10 ft | — | Earth | Indiana |
| Willow (Musselshell) Musselshell | Low Hazard | 20 ft | 1935 | Earth | Montana |
| Willow Oaks Farm Dam Rockingham | Low Hazard | — | — | Earth | North Carolina |
| Willow Point Lake Dam Cobb | Low Hazard | 24 ft | — | Earth | Georgia |
| Willow Pond Walworth | Low Hazard | 8 ft | — | Concrete | Wisconsin |
| Willow Pond Dam Sullivan | Low Hazard | 10 ft | 1982 | Earth | New Hampshire |
| Willow Pond Dam Fayette | Low Hazard | 9 ft | 1939 | Earth | Georgia |
| Willow Pond Dam Burlington | Low Hazard | 8 ft | 1968 | Earth | New Jersey |
| Willow Reservoir Harney | Low Hazard | 21 ft | — | Earth | Oregon |
| Willow River Cass | Low Hazard | 8 ft | 1962 | Gravity | Minnesota |
| Willow River Pine | Low Hazard | 21 ft | 1941 | Gravity | Minnesota |
| Willow Run Hydro Dam Washtenaw | Low Hazard | 20 ft | 1941 | Concrete | Michigan |
| Willowrun Lake Dam Gwinnett | Low Hazard | 11 ft | — | Earth | Georgia |
| Willow-Skull Dam Harney | Low Hazard | — | 1970 | Gravity | Oregon |
| Willow Slough Dam Mills | Low Hazard | 8 ft | 1959 | Earth | Iowa |
| Willow Springs Coconino | Low Hazard | 80 ft | 1970 | Rockfill | Arizona |
| Willow Springs Lake Waukesha | Low Hazard | 20 ft | 1966 | Gravity | Wisconsin |
| Willow Springs Lake Dam Paulding | Low Hazard | 39 ft | — | Earth | Georgia |
| Willow St. By-Pass Dam Norfolk | Low Hazard | 12 ft | — | — | Massachusetts |
| Willow Tank Dam Zavala | Low Hazard | 8 ft | 1972 | Earth | Texas |
| Willow Valley Reservoir Klamath | Low Hazard | 34 ft | 1961 | Earth | Oregon |
| Willow Winds Lake Dam Pike | Low Hazard | 33 ft | 1969 | Earth | Georgia |
| Willow Wood Lake Dam St. Clair | Low Hazard | 36 ft | 2003 | Earth | Illinois |
| Wills Noble | Low Hazard | 15 ft | 1950 | Earth | Oklahoma |
| Wills Jackson | Low Hazard | 13 ft | 1917 | Earth | Colorado |
| Will Shadows Pond Dam Lauderdale | Low Hazard | 12 ft | — | Earth | Mississippi |
| Wills Pond Dam Wayne | Low Hazard | — | 1964 | Earth | North Carolina |
| Wills, R. Missoula | Low Hazard | 20 ft | 1966 | Earth | Montana |
| Will White's Lake Dam Muscogee | Low Hazard | 21 ft | — | Earth | Georgia |
| Willwood Diversion Park | Low Hazard | 10 ft | 1923 | Concrete | Wyoming |
| Wilma Roosevelt | Low Hazard | 15 ft | 1960 | Earth | Montana |
| Wilmarth Aurora | Low Hazard | 31 ft | 1937 | Earth | South Dakota |
| Wilma Walkup Dam Monroe | Low Hazard | 26 ft | 2000 | Earth | Missouri |
| Wil-Mil Farms Lake Dam Lee | Low Hazard | 23 ft | — | Earth | Georgia |
| Wilmington 3 Houston | Low Hazard | 18 ft | 2011 | Earth | Minnesota |
| Wilmington Dam Will | Low Hazard | 12 ft | 1920 | Gravity | Illinois |