Washburn Lake is a gravity dam located in Aitkin County, Minnesota, built in 1958. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 35 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 Washburn Lake
The primary purpose of Washburn Lake 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 Mndnr-wildlife (state). It impounds the Willow River-tr near Aitkin.
The dam stands 10 feet tall and stretches 35 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 450 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, the structure is well into its service life at over 50 years 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/06/2018.
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Location
| State | Minnesota |
| County | Aitkin |
| Nearest City | Aitkin |
| River/Stream | Willow River-tr |
| Coordinates | 46.97721, -93.47051 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 6 ft |
| Dam Length | 35 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 450 acre-ft |
| Max Storage | 450 acre-ft |
| Normal Storage | 219 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mndnr-wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/06/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00249 |
| Federal ID | MN00249 |
| More Info | State Dam Safety Program |