Waukenabo Lake is a gravity dam located in Aitkin County, Minnesota, built in 1938. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 41 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 Waukenabo Lake
The primary purpose of Waukenabo Lake 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 Little Willow River-tr near Aitkin.
The dam stands 11 feet tall and stretches 41 feet across, creates a reservoir covering 650 acres, has a maximum storage capacity of 7,000 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1938, 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. The most recent inspection on record was 08/28/2024.
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Location
| State | Minnesota |
| County | Aitkin |
| Nearest City | Aitkin |
| River/Stream | Little Willow River-tr |
| Coordinates | 46.72770, -93.62087 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 6 ft |
| Dam Length | 41 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 7,000 acre-ft |
| Max Storage | 7,000 acre-ft |
| Normal Storage | 2,400 acre-ft |
| Surface Area | 650 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 560 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mndnr |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/28/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00246 |
| Federal ID | MN00246 |
| More Info | State Dam Safety Program |