H-1 Pool Dam

Grays Creek-Offstream· Schoolcraft, Michigan· Built 1937· Earth· 8 ft tall
Low Hazard Other Federal Government

Key Takeaway

H-1 Pool Dam is classified as low hazard in Michigan. It was completed in 1937 and is 89 years old. Its primary use is other.

Physical Details

Dam Height 8 ft (taller than 7.3% in MI)
Dam Length7,260 ft
Dam TypeEarth
Max Storage384 acre-ft
Normal Storage240 acre-ft
Surface Area120 acres
Drainage Area0 sq mi
Max Discharge1,600 cfs
Year Completed1937 (89 years old)
NID IDMI00633

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: July 17, 2018
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

DOI FWS

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of H-1 Pool Dam?

H-1 Pool 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 H-1 Pool Dam?

H-1 Pool Dam is owned by DOI FWS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was H-1 Pool Dam built?

H-1 Pool Dam was completed in 1937, making it 89 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 H-1 Pool Dam?

H-1 Pool Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is H-1 Pool Dam?

H-1 Pool Dam has a dam height of 8 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 H-1 Pool Dam last inspected?

H-1 Pool Dam was last inspected on July 17, 2018. 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.