Duffy Pond Dam

Wolvin Drain· St. Clair, Michigan· Built 1972· Earth· 20 ft tall
Low Hazard Recreation Private

Key Takeaway

Duffy Pond Dam is classified as low hazard in Michigan. It was completed in 1972 and is 54 years old. Its primary use is recreation.

Physical Details

Dam Height 20 ft (taller than 70.3% in MI)
Dam Length300 ft
Dam TypeEarth
Max Storage410 acre-ft
Normal Storage208 acre-ft
Surface Area26 acres
Drainage Area0 sq mi
Max Discharge270 cfs
Year Completed1972 (54 years old)
NID IDMI00478

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: December 16, 2008
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

Holy Trinity Greek Orth. Monastery

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Duffy Pond Dam?

Duffy Pond Dam 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 Duffy Pond Dam?

Duffy Pond Dam is owned by Holy Trinity Greek Orth. Monastery (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Duffy Pond Dam built?

Duffy Pond Dam was completed in 1972, making it 54 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 Duffy Pond Dam?

Duffy Pond Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Duffy Pond Dam?

Duffy Pond Dam has a dam height of 20 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 Duffy Pond Dam last inspected?

Duffy Pond Dam was last inspected on December 16, 2008. 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.