Tamarac Lake Outlet is a gravity dam located in Polk County, Minnesota, built in 1930. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 20 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Tamarac Lake Outlet
The primary purpose of Tamarac Lake Outlet is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr (state). It impounds the Badger Creek near Erskine.
The dam stands 10 feet tall and stretches 20 feet across, creates a reservoir covering 356 acres, has a maximum storage capacity of 3,026 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1930, 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 08/01/2018.
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Location
| State | Minnesota |
| County | Polk |
| Nearest City | Erskine |
| River/Stream | Badger Creek |
| Coordinates | 47.68584, -95.98816 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 7 ft |
| Dam Length | 20 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 3,026 acre-ft |
| Max Storage | 3,026 acre-ft |
| Normal Storage | 2,314 acre-ft |
| Surface Area | 356 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mndnr |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/01/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00225 |
| Federal ID | MN00225 |
| More Info | State Dam Safety Program |