Trout Lake Tailings is an earth dam located in Itasca County, Minnesota, built in 1954. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 2,500 ft long, taller than 80% of U.S. dams with a recorded height. 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 Trout Lake Tailings
The primary purpose of Trout Lake Tailings is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Rggs Land & Minerals Ltd. (private). It impounds the Trout Creek-os.
The dam stands 35 feet tall and stretches 2,500 feet across, creates a reservoir covering 1,890 acres, has a maximum storage capacity of 1,079 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1954, 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 08/28/2015. That was over 11 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Minnesota |
| County | Itasca |
| Nearest City | None |
| River/Stream | Trout Creek-os |
| Coordinates | 47.26542, -93.38441 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 2,500 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 1,079 acre-ft |
| Max Storage | 1,079 acre-ft |
| Normal Storage | 570 acre-ft |
| Surface Area | 1,890 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 150 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | Rggs Land & Minerals Ltd. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/28/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00795 |
| Federal ID | MN00795 |
| More Info | State Dam Safety Program |