Hennepin Station West Ash Pond Dam

Putnam, Illinois· Earth·
Significant Hazard Other Public Utility

Key Takeaway

Hennepin Station West Ash Pond Dam is classified as significant hazard in Illinois. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam TypeEarth
Normal Storage0 acre-ft
NID IDIL50698

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: November 11, 2020
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

DYNEGY

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hennepin Station West Ash Pond Dam?

Hennepin Station West Ash Pond 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 Hennepin Station West Ash Pond Dam?

Hennepin Station West Ash Pond Dam is owned by DYNEGY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Hennepin Station West Ash Pond Dam?

Hennepin Station West Ash Pond Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Hennepin Station West Ash Pond Dam last inspected?

Hennepin Station West Ash Pond Dam was last inspected on November 11, 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.