Thompson Wetland
Thompson Wetland is an earth dam located in Otter Tail County, Minnesota, built in 1997. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Thompson Wetland
The primary purpose of Thompson Wetland 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 Thompson, Eldon (private). It impounds the Buffalo River-os near Lawndall.
The dam stands 14 feet tall and stretches 230 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 122 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1997, the structure is 29 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/31/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Otter Tail |
| Nearest City | Lawndall |
| River/Stream | Buffalo River-os |
| Coordinates | 46.61991, -96.27462 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 12 ft |
| Dam Length | 230 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Normal Storage | 69 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 85 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Thompson, Eldon |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01378 |
| Federal ID | MN01378 |
| More Info | State Dam Safety Program |