Armstrong Park Flood Control Reservoir Dam

KLEIN CREEK - OFFSTREAM· DuPage, Illinois· Earth· 22 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Armstrong Park Flood Control Reservoir Dam is classified as high hazard in Illinois. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 22 ft (taller than 35.1% in IL)
Dam TypeEarth
Max Storage114 acre-ft
Normal Storage0 acre-ft
NID IDIL55159

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: November 16, 2020
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

DUPAGE COUNTY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Armstrong Park Flood Control Reservoir Dam?

Armstrong Park Flood Control Reservoir Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Armstrong Park Flood Control Reservoir Dam?

Armstrong Park Flood Control Reservoir Dam is owned by DUPAGE COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Armstrong Park Flood Control Reservoir Dam?

Armstrong Park Flood Control Reservoir 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 Armstrong Park Flood Control Reservoir Dam?

Armstrong Park Flood Control Reservoir Dam has a dam height of 22 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 Armstrong Park Flood Control Reservoir Dam last inspected?

Armstrong Park Flood Control Reservoir Dam was last inspected on November 16, 2020. 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.