Evans/Heston Dam

TR-WHITEBREAST CREEK· Lucas, Iowa· Built 1965· Earth· 33 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Evans/Heston Dam is classified as low hazard in Iowa. It was completed in 1965 and is 61 years old. Its primary use is fire protection.

Physical Details

Dam Height 33 ft (taller than 63.3% in IA)
Dam Length350 ft
Dam TypeEarth
Max Storage84 acre-ft
Normal Storage57 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1965 (61 years old)
NID IDIA00598

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: October 10, 1960
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Jay Evans & Harry Heston

Private

Nearby Dams

Evans Dam

Lucas, IA

Low Hazard 18 ft

Black Dam

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Low Hazard 30 ft

Pierce Dam

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Low Hazard 31 ft

Ripperger Dam

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Low Hazard 8 ft

Kent Dam

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Low Hazard 35 ft

Mc Cormick Dam

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Low Hazard 35 ft

Morris Dam

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Low Hazard 26 ft

Kent Dam

Lucas, IA

Low Hazard 32 ft

Frequently Asked Questions

What is the hazard classification of Evans/Heston Dam?

Evans/Heston 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 Evans/Heston Dam?

Evans/Heston Dam is owned by Jay Evans & Harry Heston (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Evans/Heston Dam built?

Evans/Heston Dam was completed in 1965, making it 61 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 Evans/Heston Dam?

Evans/Heston Dam serves the following purposes: 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 Evans/Heston Dam?

Evans/Heston Dam has a dam height of 33 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 Evans/Heston Dam last inspected?

Evans/Heston Dam was last inspected on October 10, 1960. 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.