South Zumbro Kr-6

Cascade Creek N Fork-TR· Olmsted, Minnesota· Built 1993· Earth· 31 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

South Zumbro Kr-6 is classified as high hazard in Minnesota. It was completed in 1993 and is 33 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 31 ft (taller than 85% in MN)
Dam Length638 ft
Dam TypeEarth
Max Storage600 acre-ft
Normal Storage112 acre-ft
Surface Area29 acres
Drainage Area2 sq mi
Max Discharge5,000 cfs
Year Completed1993 (33 years old)
NID IDMN01017

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: April 19, 2023
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

City of Rochester

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of South Zumbro Kr-6?

South Zumbro Kr-6 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates South Zumbro Kr-6?

South Zumbro Kr-6 is owned by City of Rochester (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was South Zumbro Kr-6 built?

South Zumbro Kr-6 was completed in 1993, making it 33 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 South Zumbro Kr-6?

South Zumbro Kr-6 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 South Zumbro Kr-6?

South Zumbro Kr-6 has a dam height of 31 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 South Zumbro Kr-6 last inspected?

South Zumbro Kr-6 was last inspected on April 19, 2023. 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.