Carlson-Friermuth Detention No. 2

Zumbro River-TR· Wabasha, Minnesota· Built 1976· Earth· 23 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Carlson-Friermuth Detention No. 2 is classified as low hazard in Minnesota. It was completed in 1976 and is 50 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 23 ft (taller than 68.4% in MN)
Dam Length505 ft
Dam TypeEarth
Max Storage89 acre-ft
Normal Storage25 acre-ft
Drainage Area1 sq mi
Max Discharge556 cfs
Year Completed1976 (50 years old)
NID IDMN00872

Safety Information

Low Hazard

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?

Emergency Action Plan: No
Last Inspection: April 15, 2016
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Hall, Terrance et al

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Carlson-Friermuth Detention No. 2?

Carlson-Friermuth Detention No. 2 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 Carlson-Friermuth Detention No. 2?

Carlson-Friermuth Detention No. 2 is owned by Hall, Terrance et al (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Carlson-Friermuth Detention No. 2 built?

Carlson-Friermuth Detention No. 2 was completed in 1976, making it 50 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 Carlson-Friermuth Detention No. 2?

Carlson-Friermuth Detention No. 2 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 Carlson-Friermuth Detention No. 2?

Carlson-Friermuth Detention No. 2 has a dam height of 23 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 Carlson-Friermuth Detention No. 2 last inspected?

Carlson-Friermuth Detention No. 2 was last inspected on April 15, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.