Lyon County Road 13
Lyon County Road 13 is an earth dam located in Lyon County, Minnesota, built in 1996. It carries a Low hazard potential classification.
About Lyon County Road 13
The primary purpose of Lyon County Road 13 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by County Of Lyon (local government). It impounds the Yellow Medicine River-tr near Minneota.
The dam stands 35 feet tall and stretches 400 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 156 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1996, the structure is 30 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. The most recent inspection on record was 07/31/2024.
At 35 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Minnesota |
| County | Lyon |
| Nearest City | Minneota |
| River/Stream | Yellow Medicine River-tr |
| Coordinates | 44.48440, -96.06034 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 400 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 156 acre-ft |
| Max Storage | 156 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 377 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | County of Lyon |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Last Inspection | 07/31/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01373 |
| Federal ID | MN01373 |
| More Info | State Dam Safety Program |