Elm Lake is an earth dam located in Marshall County, Minnesota, built in 1988. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 40,000 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Elm Lake
The primary purpose of Elm Lake 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 Mndnr-wildlife (state). It impounds the Thief River-tr near Thief River Falls.
The dam stands 19 feet tall and stretches 40,000 feet across, creates a reservoir covering 2,000 acres, has a maximum storage capacity of 20,000 acre-feet, and collects water from a drainage area of 63 square miles. Completed in 1988, the structure is 38 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 06/11/2015. That was over 11 years ago.
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Location
| State | Minnesota |
| County | Marshall |
| Nearest City | Thief River Falls |
| River/Stream | Thief River-tr |
| Coordinates | 48.26516, -96.05011 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 15 ft |
| Dam Length | 40,000 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 20,000 acre-ft |
| Max Storage | 20,000 acre-ft |
| Normal Storage | 5,000 acre-ft |
| Surface Area | 2,000 acres |
| Drainage Area | 63 sq mi |
| Max Discharge | 1,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mndnr-wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/11/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00412 |
| Federal ID | MN00412 |
| More Info | State Dam Safety Program |