Roosevelt
Roosevelt is an earth dam located in Tripp County, South Dakota, built in 1937. It carries a Low hazard potential classification.
About Roosevelt
The primary purpose of Roosevelt 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 Ponca Creek-tr.
The dam stands 20 feet tall and stretches 850 feet across, creates a reservoir covering 85 acres, has a maximum storage capacity of 1,213 acre-feet, and collects water from a drainage area of 22 square miles. 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 10/25/2023.
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Location
| State | South Dakota |
| County | Tripp |
| Nearest City | None |
| River/Stream | Ponca Creek-tr |
| Coordinates | 43.20523, -99.61632 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 850 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 1,213 acre-ft |
| Max Storage | 1,213 acre-ft |
| Normal Storage | 595 acre-ft |
| Surface Area | 85 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 3,043 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | GF&P |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 10/25/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00043 |
| Federal ID | SD00043 |
| More Info | State Dam Safety Program |