Wallace Dam

TR- EAST NISHNABOTNA RIVER· Pottawattamie, Iowa· Built 2004· Earth· 33 ft tall

Key Takeaway

Wallace Dam is classified as low hazard in Iowa. It was completed in 2004 and is 22 years old. Its primary use is fire protection.

Physical Details

Dam Height 33 ft (taller than 63.3% in IA)
Dam Length460 ft
Dam TypeEarth
Max Storage63 acre-ft
Normal Storage22 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed2004 (22 years old)
NID IDIA03766

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
State Regulated: Yes

Ownership

Allica Wallace

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wallace Dam?

Wallace 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 Wallace Dam?

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

When was Wallace Dam built?

Wallace Dam was completed in 2004, making it 22 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 Wallace Dam?

Wallace 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 Wallace Dam?

Wallace 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.

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.