Horihan-Hazel Group

Root River-TR· Fillmore, Minnesota· Built 1978· Earth· 29 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Horihan-Hazel Group is classified as significant hazard in Minnesota. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 29 ft (taller than 80.4% in MN)
Dam Length200 ft
Dam TypeEarth
Max Storage26 acre-ft
Normal Storage6 acre-ft
Drainage Area1 sq mi
Max Discharge703 cfs
Year Completed1978 (48 years old)
NID IDMN00862

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: May 24, 2022
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Horihan-Hazel Group

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Horihan-Hazel Group?

Horihan-Hazel Group is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Horihan-Hazel Group?

Horihan-Hazel Group is owned by Horihan-Hazel Group (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Horihan-Hazel Group built?

Horihan-Hazel Group was completed in 1978, making it 48 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 Horihan-Hazel Group?

Horihan-Hazel Group 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 Horihan-Hazel Group?

Horihan-Hazel Group has a dam height of 29 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 Horihan-Hazel Group last inspected?

Horihan-Hazel Group was last inspected on May 24, 2022. 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.