Lacreek Dam No. 9
Lacreek Dam No. 9 is an earth dam located in Bennett County, South Dakota, built in 1934. It carries a Low hazard potential classification and has a poor condition assessment.
About Lacreek Dam No. 9
The primary purpose of Lacreek Dam No. 9 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 12 feet tall and stretches 7,000 feet across, creates a reservoir covering 1,564 acres, has a maximum storage capacity of 14,331 acre-feet, and collects water from a drainage area of 136 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/19/2019.
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Location
| State | South Dakota |
| County | Bennett |
| River/Stream | Lake Creek |
| Coordinates | 43.12500, -101.53667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 7,000 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 14,331 acre-ft |
| Max Storage | 14,331 acre-ft |
| Normal Storage | 4,730 acre-ft |
| Surface Area | 1,564 acres |
| Drainage Area | 136 sq mi |
| Max Discharge | 1,835 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US FISH AND WILDLIFE SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/19/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD10058 |
| Federal ID | SD10058 |
| More Info | State Dam Safety Program |