Ortonville 25

Minnesota River-TR· Big Stone, Minnesota· Rockfill· 22 ft tall

Key Takeaway

Ortonville 25 is classified as low hazard in Minnesota. Its primary use is fire protection.

Physical Details

Dam Height 22 ft (taller than 66.3% in MN)
Dam Length250 ft
Dam TypeRockfill
Max Storage50 acre-ft
Normal Storage34 acre-ft
Surface Area4 acres
NID IDMN01772

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: August 7, 2019
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Joplin, Mark

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ortonville 25?

Ortonville 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 Ortonville 25?

Ortonville 25 is owned by Joplin, Mark (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Ortonville 25?

Ortonville 25 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Ortonville 25?

Ortonville 25 has a dam height of 22 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 Ortonville 25 last inspected?

Ortonville 25 was last inspected on August 7, 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.