Wolf Lake is a gravity dam located in St. Louis County, Minnesota, built in 1941. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 68 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 Wolf Lake
The primary purpose of Wolf 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 Wolf Creek near Island Lake.
The dam stands 16 feet tall and stretches 68 feet across, creates a reservoir covering 467 acres, has a maximum storage capacity of 3,503 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1941, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/17/2014. That was over 12 years ago.
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Location
| State | Minnesota |
| County | St. Louis |
| Nearest City | Island Lake |
| River/Stream | Wolf Creek |
| Coordinates | 47.25632, -91.96442 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 16 ft |
| Dam Height | 11 ft |
| Dam Length | 68 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 3,503 acre-ft |
| Max Storage | 3,503 acre-ft |
| Normal Storage | 2,102 acre-ft |
| Surface Area | 467 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 710 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mndnr |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/17/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00003 |
| Federal ID | MN00003 |
| More Info | State Dam Safety Program |