Little Willow River

Little Willow River is an other dam located in Aitkin County, Minnesota, built in 1977. It carries a Low hazard potential classification.

About Little Willow River

The primary purpose of Little Willow River 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 Little Willow River near Riverton.

The dam stands 10 feet tall and stretches 56 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 20 square miles. Completed in 1977, the structure is 49 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. The most recent inspection on record was 08/28/2024.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMinnesota
CountyAitkin
Nearest CityRiverton
River/StreamLittle Willow River
Coordinates46.71163, -93.69532

Physical Characteristics

Dam TypeOther
NID Height10 ft
Dam Height6 ft
Dam Length56 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage100 acre-ft
Max Storage100 acre-ft
Normal Storage10 acre-ft
Surface Area5 acres
Drainage Area20 sq mi
Max Discharge50 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerMNDNR-Wildlife
Owner TypeState
Hazard ClassificationLow
Last Inspection08/28/2024
Emergency Action PlanNot Required

Identifiers

NID IDMN00687
Federal IDMN00687
More InfoState Dam Safety Program

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