Woodruff
Woodruff is an earth dam located in Hughes County, South Dakota, built in 1937. It carries a Low hazard potential classification.
About Woodruff
The primary purpose of Woodruff is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gf&p (state). It impounds the South Medicine Creek.
The dam stands 32 feet tall and stretches 975 feet across, and has a maximum storage capacity of 540 acre-feet. Completed in 1937, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 08/18/2022.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | South Dakota |
| County | Hughes |
| Nearest City | None |
| River/Stream | South Medicine Creek |
| Coordinates | 44.50632, -99.78035 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 975 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 540 acre-ft |
| Max Storage | 540 acre-ft |
| Normal Storage | 120 acre-ft |
| Max Discharge | 2,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | GF&P |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 08/18/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00025 |
| Federal ID | SD00025 |
| More Info | State Dam Safety Program |