Lacreek Dam No. 7
Lacreek Dam No. 7 is an earth dam located in Bennett County, South Dakota, built in 1934. It carries a Low hazard potential classification and has a fair condition assessment.
About Lacreek Dam No. 7
The primary purpose of Lacreek Dam No. 7 is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Us Fish And Wildlife Service (federal). It impounds the Lake Creek.
The dam stands 11 feet tall and stretches 6,210 feet across, creates a reservoir covering 530 acres, has a maximum storage capacity of 4,386 acre-feet, and collects water from a drainage area of 85 square miles. Completed in 1934, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/08/2019.
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Location
| State | South Dakota |
| County | Bennett |
| River/Stream | Lake Creek |
| Coordinates | 43.09000, -101.58334 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 6,210 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 4,386 acre-ft |
| Max Storage | 4,386 acre-ft |
| Normal Storage | 1,543 acre-ft |
| Surface Area | 530 acres |
| Drainage Area | 85 sq mi |
| Max Discharge | 1,480 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/08/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD10056 |
| Federal ID | SD10056 |
| More Info | State Dam Safety Program |