Trout Lake Tailings

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.

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 10 years ago.

At 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMinnesota
CountyItasca
Nearest CityNone
River/StreamTrout Creek-os
Coordinates47.26542, -93.38441

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length2,500 ft
Year Completed1954 (72 years old)

Storage & Hydraulics

NID Storage1,079 acre-ft
Max Storage1,079 acre-ft
Normal Storage570 acre-ft
Surface Area1,890 acres
Drainage Area0 sq mi
Max Discharge150 cfs

Ownership & Safety

PurposeTailings
OwnerRGGS Land & Minerals LTD.
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/28/2015
Emergency Action PlanNot Required

Identifiers

NID IDMN00795
Federal IDMN00795
More InfoState Dam Safety Program

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