Tamarac River R1
Key Takeaway
Tamarac River R1 is classified as low hazard in Minnesota. It was completed in 1975 and is 51 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 21 ft (taller than 63.7% in MN) |
| Dam Length | 11,000 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 225 sq mi |
| Max Discharge | 2,240 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | MN00889 |
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
SWCD of Marshall County
Local Government
Frequently Asked Questions
What is the hazard classification of Tamarac River R1?
Tamarac River R1 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 Tamarac River R1?
Tamarac River R1 is owned by SWCD of Marshall County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tamarac River R1 built?
Tamarac River R1 was completed in 1975, making it 51 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Tamarac River R1?
Tamarac River R1 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Tamarac River R1?
Tamarac River R1 has a dam height of 21 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.
When was Tamarac River R1 last inspected?
Tamarac River R1 was last inspected on June 8, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.