Bagnall Dam

TR-ALLOWAY CREEK· Jasper, Iowa· Built 1960· Earth· 26 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Bagnall Dam is classified as low hazard in Iowa. It was completed in 1960 and is 66 years old. Its primary use is fire protection.

Physical Details

Dam Height 26 ft (taller than 24.7% in IA)
Dam Length341 ft
Dam TypeEarth
Max Storage25 acre-ft
Normal Storage18 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1960 (66 years old)
NID IDIA00544

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 15, 1963
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Wayne Bagnall

Private

Nearby Dams

Kolls Dam

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Low Hazard 29 ft

Mariposa Lake Dam

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Low Hazard 25 ft

Sietmann Dam

Marshall, IA

Low Hazard 22 ft

Triple B Dam 2

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Low Hazard 32 ft

Harsha Dam

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Significant Hazard 28 ft

Mason Dam

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Low Hazard 22 ft

Rodgers Dam

Jasper, IA

Low Hazard 34 ft

Axtell Dam

Jasper, IA

Low Hazard 31 ft

Frequently Asked Questions

What is the hazard classification of Bagnall Dam?

Bagnall 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 Bagnall Dam?

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

When was Bagnall Dam built?

Bagnall Dam was completed in 1960, making it 66 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 Bagnall Dam?

Bagnall 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 Bagnall Dam?

Bagnall Dam has a dam height of 26 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 Bagnall Dam last inspected?

Bagnall Dam was last inspected on October 15, 1963. 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.