Black River Dam

Trib to N Fork Black River· Allegan, Michigan· Built 1967· Earth· 18 ft tall
Low Hazard Irrigation Private

Key Takeaway

Black River Dam is classified as low hazard in Michigan. It was completed in 1967 and is 59 years old. Its primary use is irrigation.

Physical Details

Dam Height 18 ft (taller than 63.6% in MI)
Dam Length550 ft
Dam TypeEarth
Max Storage54 acre-ft
Normal Storage40 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge280 cfs
Year Completed1967 (59 years old)
NID IDMI00423

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: November 16, 1967
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

Harold J. & Martha Hamlin

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Black River Dam?

Black River 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 Black River Dam?

Black River Dam is owned by Harold J. & Martha Hamlin (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Black River Dam built?

Black River Dam was completed in 1967, making it 59 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 Black River Dam?

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

How tall is Black River Dam?

Black River Dam has a dam height of 18 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 Black River Dam last inspected?

Black River Dam was last inspected on November 16, 1967. 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.