Bernstein Dam

TR-MUCHAKINOCK CREEK· Mahaska, Iowa· Built 1976· Earth· 35 ft tall
Significant Hazard Recreation Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Bernstein Dam is classified as significant hazard in Iowa. It was completed in 1976 and is 50 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 35 ft (taller than 70.9% in IA)
Dam Length525 ft
Dam TypeEarth
Max Storage94 acre-ft
Normal Storage52 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1976 (50 years old)
NID IDIA01634

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

William Bernstein Trust

Private

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Frequently Asked Questions

What is the hazard classification of Bernstein Dam?

Bernstein Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Bernstein Dam?

Bernstein Dam is owned by William Bernstein Trust (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bernstein Dam built?

Bernstein Dam was completed in 1976, making it 50 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 Bernstein Dam?

Bernstein Dam serves the following purposes: Recreation, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Bernstein Dam?

Bernstein Dam has a dam height of 35 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.

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.