Progress Park Dam

TR- Iowa River· Johnson, Iowa· Built 2005· Earth· 23 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Progress Park Dam is classified as significant hazard in Iowa. It was completed in 2005 and is 21 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 23 ft (taller than 13.3% in IA)
Dam Length1,455 ft
Dam TypeEarth
Max Storage288 acre-ft
Normal Storage86 acre-ft
Surface Area15 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed2005 (21 years old)
NID IDIA03517

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: June 26, 2018
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Cedar Development

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Progress Park Dam?

Progress Park Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Progress Park Dam?

Progress Park Dam is owned by Cedar Development (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Progress Park Dam built?

Progress Park Dam was completed in 2005, making it 21 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 Progress Park Dam?

Progress Park Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Progress Park Dam?

Progress Park Dam has a dam height of 23 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 Progress Park Dam last inspected?

Progress Park Dam was last inspected on June 26, 2018. 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.