Gray Hawk Center Dam

TRIB FLINT CREEK - OFFSTREAM· Lake, Illinois· Earth· 8 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Gray Hawk Center Dam is classified as significant hazard in Illinois. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 8 ft (taller than 2.5% in IL)
Dam Length450 ft
Dam TypeEarth
Max Storage19 acre-ft
Normal Storage0 acre-ft
Drainage Area0 sq mi
NID IDIL55044

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: Yes
Last Inspection: June 8, 2018
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

HAMILTON PARTNERS, INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Gray Hawk Center Dam?

Gray Hawk Center 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 Gray Hawk Center Dam?

Gray Hawk Center Dam is owned by HAMILTON PARTNERS, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Gray Hawk Center Dam?

Gray Hawk Center 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 Gray Hawk Center Dam?

Gray Hawk Center Dam has a dam height of 8 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 Gray Hawk Center Dam last inspected?

Gray Hawk Center Dam was last inspected on June 8, 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.