Fish Lake
Fish Lake is a gravity dam located in Kanabec County, Minnesota, built in 1930. It carries a Low hazard potential classification and has a fair condition assessment.
About Fish Lake
Fish Lake is a dam in Kanabec, Minnesota. The dam is owned by Mndnr-fisheries And Wildlife (state). It impounds the Ann River near Grasston.
The dam stands 13 feet tall and stretches 1,200 feet across, creates a reservoir covering 440 acres, has a maximum storage capacity of 3,663 acre-feet, and collects water from a drainage area of 87 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 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 10/07/2021.
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Location
| State | Minnesota |
| County | Kanabec |
| Nearest City | Grasston |
| River/Stream | Ann River |
| Coordinates | 45.84729, -93.28699 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 13 ft |
| Dam Height | 10 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 3,663 acre-ft |
| Max Storage | 3,663 acre-ft |
| Normal Storage | 2,442 acre-ft |
| Surface Area | 440 acres |
| Drainage Area | 87 sq mi |
| Max Discharge | 1,899 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | MNDNR-Fisheries and Wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/07/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00572 |
| Federal ID | MN00572 |
| More Info | State Dam Safety Program |