Mcintosh Lake
Mcintosh Lake is an earth dam located in Corson County, South Dakota, built in 1910. It carries a Significant hazard potential classification.
About Mcintosh Lake
The primary purpose of Mcintosh Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Milwakee Railroad (private). It impounds the Stink Creek near Bullhead.
The dam stands 20 feet tall and stretches 1,716 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 786 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1910, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 01/06/1986. That was over 40 years ago.
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Location
| State | South Dakota |
| County | Corson |
| Nearest City | Bullhead |
| River/Stream | Stink Creek |
| Coordinates | 45.92119, -101.33917 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,716 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 786 acre-ft |
| Max Storage | 786 acre-ft |
| Normal Storage | 161 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 175 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | MILWAKEE RAILROAD |
| Owner Type | Private |
| Hazard Classification | Significant |
| Last Inspection | 01/06/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00738 |
| Federal ID | SD00738 |
| More Info | State Dam Safety Program |