Long Tom Lake
Long Tom Lake is an earth dam located in Big Stone County, Minnesota, built in 1967. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Long Tom Lake
Long Tom Lake is a dam in Big Stone, Minnesota. The dam is owned by Huizenge, Lena (private). It impounds the Stony Run near Odessa.
The dam stands 15 feet tall and stretches 20 feet across, creates a reservoir covering 147 acres, has a maximum storage capacity of 4,266 acre-feet, and collects water from a drainage area of 118 square miles. Completed in 1967, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/07/2023.
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Location
| State | Minnesota |
| County | Big Stone |
| Nearest City | Odessa |
| River/Stream | Stony Run |
| Coordinates | 45.31558, -96.35200 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 10 ft |
| Dam Length | 20 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 4,266 acre-ft |
| Max Storage | 4,266 acre-ft |
| Normal Storage | 2,900 acre-ft |
| Surface Area | 147 acres |
| Drainage Area | 118 sq mi |
| Max Discharge | 653 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Huizenge, Lena |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/07/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00170 |
| Federal ID | MN00170 |
| More Info | State Dam Safety Program |