Lyon County Road 13

Yellow Medicine River-TR· Lyon, Minnesota· Built 1996· Earth· 35 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Lyon County Road 13 is classified as low hazard in Minnesota. It was completed in 1996 and is 30 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 35 ft (taller than 89.8% in MN)
Dam Length400 ft
Dam TypeEarth
Max Storage156 acre-ft
Surface Area1 acres
Drainage Area2 sq mi
Max Discharge377 cfs
Year Completed1996 (30 years old)
NID IDMN01373

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: March 15, 2016
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

County of Lyon

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lyon County Road 13?

Lyon County Road 13 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 Lyon County Road 13?

Lyon County Road 13 is owned by County of Lyon (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lyon County Road 13 built?

Lyon County Road 13 was completed in 1996, making it 30 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 Lyon County Road 13?

Lyon County Road 13 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 Lyon County Road 13?

Lyon County Road 13 has a dam height of 35 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 Lyon County Road 13 last inspected?

Lyon County Road 13 was last inspected on March 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.