Griffith-Glynn Farm Pond

Cottonwood River-TR· Lyon, Minnesota· Built 1979· Earth· 25 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Griffith-Glynn Farm Pond is classified as low hazard in Minnesota. It was completed in 1979 and is 47 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 25 ft (taller than 72.3% in MN)
Dam Length295 ft
Dam TypeEarth
Max Storage77 acre-ft
Normal Storage25 acre-ft
Drainage Area1 sq mi
Max Discharge289 cfs
Year Completed1979 (47 years old)
Year Modified2007
NID IDMN00845

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 14, 2016
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Griffith, John

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Griffith-Glynn Farm Pond?

Griffith-Glynn Farm Pond 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 Griffith-Glynn Farm Pond?

Griffith-Glynn Farm Pond is owned by Griffith, John (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Griffith-Glynn Farm Pond built?

Griffith-Glynn Farm Pond was completed in 1979, making it 47 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 Griffith-Glynn Farm Pond?

Griffith-Glynn Farm Pond 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 Griffith-Glynn Farm Pond?

Griffith-Glynn Farm Pond has a dam height of 25 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 Griffith-Glynn Farm Pond last inspected?

Griffith-Glynn Farm Pond was last inspected on March 14, 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.