Dexter Dam

Mill Creek· Washtenaw, Michigan· Built 1932· Gravity· 15 ft tall
Unknown Recreation Local Government

Key Takeaway

Dexter Dam is classified as unknown in Michigan. It was completed in 1932 and is 94 years old. Its primary use is recreation.

Physical Details

Dam Height 15 ft (taller than 50.6% in MI)
Dam Length90 ft
Dam TypeGravity
Max Storage350 acre-ft
Normal Storage80 acre-ft
Surface Area22 acres
Drainage Area128 sq mi
Max Discharge4,000 cfs
Year Completed1932 (94 years old)
NID IDMI00324

Safety Information

Unknown

Hazard potential has not been determined.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: November 1, 1989
State Regulated: No

Ownership

Washtenaw County Road Commission

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dexter Dam?

Dexter Dam is classified as Unknown. Hazard potential has not been determined. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Dexter Dam?

Dexter Dam is owned by Washtenaw County Road Commission (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dexter Dam built?

Dexter Dam was completed in 1932, making it 94 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 Dexter Dam?

Dexter 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 Dexter Dam?

Dexter Dam has a dam height of 15 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 Dexter Dam last inspected?

Dexter Dam was last inspected on November 1, 1989. 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.