Monroe 8
Monroe 8 is an earth dam located in Lyon County, Minnesota, built in 2010. It carries a Low hazard potential classification.
About Monroe 8
The primary purpose of Monroe 8 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 Ludeman, Ben (private). It impounds the Cottonwood River-tr near Lamberton.
The dam stands 39 feet tall and stretches 400 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 2010, the structure is relatively new.
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 39 feet, this dam is taller than 86% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Lyon |
| Nearest City | Lamberton |
| River/Stream | Cottonwood River-tr |
| Coordinates | 44.25942, -95.68184 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 400 ft |
| Year Completed | 2010 (16 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 6 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ludeman, Ben |
| Owner Type | Private |
| Hazard Classification | Low |
| Last Inspection | 07/31/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01566 |
| Federal ID | MN01566 |
| More Info | State Dam Safety Program |