Low Hazard Dams
No probable loss of human life and low economic/environmental losses expected.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Willis Graves Lake Dam Benton | Low Hazard | 22 ft | 1993 | Earth | Mississippi |
| Willis Lake Waseca | Low Hazard | 9 ft | — | Earth | Minnesota |
| Willis Lake Dam Harris | Low Hazard | 20 ft | 1940 | Earth | Georgia |
| Willis Lake Dam Carroll | Low Hazard | 16 ft | 1967 | Earth | Georgia |
| Willis Lake Dam Alleghany | Low Hazard | — | 1962 | Earth | North Carolina |
| Willis Lake Dam Comanche | Low Hazard | 18 ft | 1969 | Earth | Texas |
| Willis Lake Dam Highland | Low Hazard | 31 ft | 1995 | Earth | Ohio |
| Willis Lake Dam Laurens | Low Hazard | 15 ft | 1965 | Earth | Georgia |
| Willis Pond Dam Chesterfield | Low Hazard | 12 ft | 1960 | — | South Carolina |
| Willis Properties Lake Dam Spalding | Low Hazard | 37 ft | 1955 | Earth | Georgia |
| Williston Mill Dam (Md 617 Old Harmony Road) Caroline | Low Hazard | 18 ft | 1936 | Earth | Maryland |
| Willis Walker Farm Dam Washington | Low Hazard | 31 ft | 1968 | Earth | Kentucky |
| Willits Johnson | Low Hazard | 22 ft | 1940 | Earth | Wyoming |
| Willits Lake Garfield | Low Hazard | 25 ft | 1965 | Earth | Oklahoma |
| Willits L.R. Major | Low Hazard | 35 ft | 1960 | Earth | Oklahoma |
| Willmore Fergus | Low Hazard | 15 ft | 1946 | Earth | Montana |
| Will No. 1 Johnson | Low Hazard | 30 ft | 1991 | Earth | Wyoming |
| Will-O-B Douglas | Low Hazard | 9 ft | 1990 | Earth | Minnesota |
| Willo's Lake Dam Washtenaw | Low Hazard | 7 ft | — | Earth | Michigan |
| Willough McCone | Low Hazard | 24 ft | 1952 | Earth | Montana |
| Willoughby Madison | Low Hazard | — | 1994 | Earth | Tennessee |
| Willoughby Dam No. 1 (South) Johnson | Low Hazard | 36 ft | 1965 | Earth | Indiana |
| Willoughby Dam No. 2 (North) Johnson | Low Hazard | 33 ft | 1966 | Earth | Indiana |
| Willoughby Lake Dam Baldwin | Low Hazard | 15 ft | 1945 | Earth | Georgia |
| Willow Delta | Low Hazard | 28 ft | 1948 | Earth | Colorado |
| Willow Blaine | Low Hazard | 12 ft | 1957 | Earth | Montana |
| Willow Oklahoma | Low Hazard | 25 ft | 1920 | Earth | Oklahoma |
| Willow Beach Lake Dam Pulaski | Low Hazard | — | 1955 | Earth | Arkansas |
| Willow Beach Lake Dam Harris | Low Hazard | 32 ft | 1953 | Earth | Georgia |
| Willow Belt Cascade | Low Hazard | 10 ft | 1951 | Earth | Montana |
| Willow Butte Harney | Low Hazard | — | 2004 | Gravity | Oregon |
| Willow Creek Dam Sequoyah | Low Hazard | 41 ft | — | Earth | Oklahoma |
| Willow Creek Dam Elko | Low Hazard | 58 ft | 1986 | Rockfill | Nevada |
| Willow Creek Flat Dam (Valley) Valley | Low Hazard | — | — | Gravity | Montana |
| Willow Creek Flowage No 1 Chippewa | Low Hazard | 9 ft | 1966 | Earth | Wisconsin |
| Willow Creek Flowage No 2 Chippewa | Low Hazard | 8 ft | 1966 | Earth | Wisconsin |
| Willow Creek Flowage No 3 Chippewa | Low Hazard | 8 ft | 1966 | Earth | Wisconsin |
| Willow Creek Reservoir (Lake) Lake | Low Hazard | 21 ft | 1959 | Earth | Oregon |
| Willow Creek Subwatershed Site 10-3 Woodbury | Low Hazard | 34 ft | 1968 | Earth | Iowa |
| Willow Creek Subwatershed Site 3-1 Woodbury | Low Hazard | 39 ft | 1968 | Earth | Iowa |
| Willow Creek Subwatershed Site M-1 Woodbury | Low Hazard | 45 ft | 1968 | Earth | Iowa |
| Willow Creek Subwatershed Site M-2 Woodbury | Low Hazard | 38 ft | 1968 | Earth | Iowa |
| Willow Creek Subwatershed Site M-3 Woodbury | Low Hazard | 30 ft | 1968 | Earth | Iowa |
| Willow Creek Subwatershed Site M-4 Woodbury | Low Hazard | 25 ft | 1968 | Earth | Iowa |
| Willow Creek Watershed Dam A- 22 Ray | Low Hazard | 33 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 23 Ray | Low Hazard | 32 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 24a Ray | Low Hazard | 28 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 24b Ray | Low Hazard | 29 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 26 Ray | Low Hazard | 27 ft | 1970 | Earth | Missouri |
| Willow Creek Watershed Dam A- 27 Ray | Low Hazard | 33 ft | 1972 | Earth | Missouri |