Timm Lake
Timm Lake is a gravity dam located in Yellow Medicine County, Minnesota, built in 1924. It carries a Low hazard potential classification and has a fair condition assessment.
About Timm Lake
Timm Lake is a dam in Yellow Medicine, Minnesota. The dam is owned by County Of Yellow Medicine (local government). It impounds the Wood Lake Creek near Wood Lake.
The dam stands 8 feet tall, creates a reservoir covering 260 acres, has a maximum storage capacity of 720 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1924, the structure is over a century old.
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 11/14/2018.
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Location
| State | Minnesota |
| County | Yellow Medicine |
| Nearest City | Wood Lake |
| River/Stream | Wood Lake Creek |
| Coordinates | 44.55039, -95.52900 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 6 ft |
| Year Completed | 1924 (102 years old) |
Storage & Hydraulics
| NID Storage | 720 acre-ft |
| Max Storage | 720 acre-ft |
| Normal Storage | 240 acre-ft |
| Surface Area | 260 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 175 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | County of Yellow Medicine |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/14/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00153 |
| Federal ID | MN00153 |
| More Info | State Dam Safety Program |