Diehl Dam

TR- WALNUT CREEK· Ringgold, Iowa· Built 1991· Earth· 31 ft tall

Key Takeaway

Diehl Dam is classified as low hazard in Iowa. It was completed in 1991 and is 35 years old. Its primary use is fire protection.

Physical Details

Dam Height 31 ft (taller than 53.8% in IA)
Dam Length425 ft
Dam TypeEarth
Max Storage57 acre-ft
Normal Storage29 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1991 (35 years old)
NID IDIA02664

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
Regulatory Agency: IOWA DNR

Ownership

Lorene Diehl

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Diehl Dam?

Diehl 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 Diehl Dam?

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

When was Diehl Dam built?

Diehl Dam was completed in 1991, making it 35 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 Diehl Dam?

Diehl 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 Diehl Dam?

Diehl Dam has a dam height of 31 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.