Jim Walter Dam

Trib to Ninemile Creek· Adair, Iowa· Built 2018· Earth· 26 ft tall
Low Hazard Grade Stabilization Recreation Private

Key Takeaway

Jim Walter Dam is classified as low hazard in Iowa. It was completed in 2018 and is 8 years old. Its primary use is grade stabilization.

Physical Details

Dam Height 26 ft (taller than 24.7% in IA)
Dam Length386 ft
Dam TypeEarth
Max Storage23 acre-ft
Normal Storage11 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge179 cfs
Year Completed2018 (8 years old)
NID IDIA04305

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

Jim Walter

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jim Walter Dam?

Jim Walter 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 Jim Walter Dam?

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

When was Jim Walter Dam built?

Jim Walter Dam was completed in 2018, making it 8 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 Jim Walter Dam?

Jim Walter Dam serves the following purposes: Grade Stabilization, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Jim Walter Dam?

Jim Walter 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.

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.