Lake Frank
Lake Frank is an earth dam located in Swift County, Minnesota, built in 1975. It carries a Low hazard potential classification and has a fair condition assessment.
About Lake Frank
The primary purpose of Lake Frank 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 County Of Swift (local government). It impounds the Chippewa River-tr near Benson.
The dam stands 10 feet tall and stretches 585 feet across, creates a reservoir covering 134 acres, has a maximum storage capacity of 1,200 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1975, 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 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 07/20/2023.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Swift |
| Nearest City | Benson |
| River/Stream | Chippewa River-tr |
| Coordinates | 45.32583, -95.36647 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 585 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
| Normal Storage | 260 acre-ft |
| Surface Area | 134 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | County of Swift |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/20/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00979 |
| Federal ID | MN00979 |
| More Info | State Dam Safety Program |