Little Cottonwood River
Key Takeaway
Little Cottonwood River is classified as low hazard in Minnesota. It was completed in 1997 and is 29 years old.
Physical Details
| Dam Height | 16 ft (taller than 53.5% in MN) |
| Dam Length | 480 ft |
| Max Storage | 243 acre-ft |
| Drainage Area | 12 sq mi |
| Year Completed | 1997 (29 years old) |
| NID ID | MN01752 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MNDOT
State Government
Nearby Dams
Wellner-Hageman
Brown, MN
Low Hazard 21 ftStately 29
Brown, MN
Low Hazard 26 ftSchoper-Bush
Cottonwood, MN
Significant Hazard 45 ftGermantown 30
Cottonwood, MN
Low Hazard 14 ftStorden 2
Cottonwood, MN
Low Hazard 25 ftEagle Lake
Cottonwood, MN
Low Hazard 11 ftRoiger Detention
Brown, MN
Low Hazard 28 ftMountain Lake
Cottonwood, MN
Significant Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Little Cottonwood River?
Little Cottonwood River is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Little Cottonwood River?
Little Cottonwood River is owned by MNDOT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Cottonwood River built?
Little Cottonwood River was completed in 1997, making it 29 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Little Cottonwood River?
Little Cottonwood River has a dam height of 16 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.