Hayes Lake
Hayes Lake is an earth dam located in Roseau County, Minnesota, built in 1973. It carries a Significant hazard potential classification and has a fair condition assessment.
About Hayes Lake
The primary purpose of Hayes Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr-parks (state). It impounds the Roseau River near Pencer.
The dam stands 39 feet tall and stretches 1,115 feet across, creates a reservoir covering 187 acres, has a maximum storage capacity of 3,770 acre-feet, and collects water from a drainage area of 150 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 09/21/2021.
At 39 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Minnesota |
| County | Roseau |
| Nearest City | Pencer |
| River/Stream | Roseau River |
| Coordinates | 48.63407, -95.54792 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 33 ft |
| Dam Length | 1,115 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 3,770 acre-ft |
| Max Storage | 3,770 acre-ft |
| Normal Storage | 1,640 acre-ft |
| Surface Area | 187 acres |
| Drainage Area | 150 sq mi |
| Max Discharge | 24,500 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR-Parks |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 09/21/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00074 |
| Federal ID | MN00074 |
| More Info | State Dam Safety Program |