Adel Milldam

NORTH RACCOON RIVER· Dallas, Iowa· Built 1927· Gravity· 15 ft tall
Low Hazard Water Supply Local Government

Key Takeaway

Adel Milldam is classified as low hazard in Iowa. It was completed in 1927 and is 99 years old. Its primary use is water supply.

Physical Details

Dam Height 15 ft (taller than 4.4% in IA)
Dam Length252 ft
Dam TypeGravity
Max Storage1.4K acre-ft
Normal Storage1.3K acre-ft
Surface Area170 acres
Drainage Area2,281 sq mi
Max Discharge0 cfs
Year Completed1927 (99 years old)
NID IDIA01267

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

City of Adel

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Adel Milldam?

Adel Milldam 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 Adel Milldam?

Adel Milldam is owned by City of Adel (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Adel Milldam built?

Adel Milldam was completed in 1927, making it 99 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 Adel Milldam?

Adel Milldam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Adel Milldam?

Adel Milldam has a dam height of 15 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.