Sodus 25

Meadow Creek-TR· Lyon, Minnesota· Built 1988· 35 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Sodus 25 is classified as low hazard in Minnesota. It was completed in 1988 and is 38 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 35 ft (taller than 89.8% in MN)
Dam Length480 ft
Max Storage320 acre-ft
Normal Storage17 acre-ft
Surface Area4 acres
Drainage Area2 sq mi
Year Completed1988 (38 years old)
NID IDMN01747

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 4, 2019
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

County of Lyon

Local Government

Nearby Dams

Sodus 24

Lyon, MN

Low Hazard 26 ft

Amiret 19

Lyon, MN

Low Hazard 22 ft

Sodus 23 E

Lyon, MN

Low Hazard 20 ft

Sodus 26

Lyon, MN

Low Hazard 27 ft

Sodus 23 W

Lyon, MN

Low Hazard 17 ft

Amiret 32

Lyon, MN

Low Hazard 21 ft

Griffith-Glynn Farm Pond

Lyon, MN

Low Hazard 25 ft

Custer 13

Lyon, MN

Low Hazard 26 ft

Frequently Asked Questions

What is the hazard classification of Sodus 25?

Sodus 25 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 Sodus 25?

Sodus 25 is owned by County of Lyon (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sodus 25 built?

Sodus 25 was completed in 1988, making it 38 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 Sodus 25?

Sodus 25 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 Sodus 25?

Sodus 25 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 Sodus 25 last inspected?

Sodus 25 was last inspected on April 4, 2019. 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.