Joliet West Side Wastewater Treatment Plant Dam

DES PLAINES RIVER - OFFSTREAM· Will, Illinois· Earth· 25 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Joliet West Side Wastewater Treatment Plant Dam is classified as low hazard in Illinois. Its primary use is flood risk reduction.

Physical Details

Dam Height 25 ft (taller than 42.6% in IL)
Dam Length1,000 ft
Dam TypeEarth
Max Storage77 acre-ft
Normal Storage0 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
NID IDIL55049

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

Ownership

CITY OF JOLIET

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Joliet West Side Wastewater Treatment Plant Dam?

Joliet West Side Wastewater Treatment Plant 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 Joliet West Side Wastewater Treatment Plant Dam?

Joliet West Side Wastewater Treatment Plant Dam is owned by CITY OF JOLIET (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Joliet West Side Wastewater Treatment Plant Dam?

Joliet West Side Wastewater Treatment Plant 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 Joliet West Side Wastewater Treatment Plant Dam?

Joliet West Side Wastewater Treatment Plant Dam has a dam height of 25 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 Joliet West Side Wastewater Treatment Plant Dam last inspected?

Joliet West Side Wastewater Treatment Plant 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.