Tullamore Dam

SEAVEY DRAINAGE DITCH· Lake, Illinois· Built 1994· Earth· 17 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Tullamore Dam is classified as high hazard in Illinois. It was completed in 1994 and is 32 years old. 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 17 ft (taller than 22.3% in IL)
Dam Length600 ft
Dam TypeEarth
Max Storage106 acre-ft
Normal Storage20 acre-ft
Max Discharge1,000 cfs
Year Completed1994 (32 years old)
NID IDIL50260

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: May 31, 2023
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

MUNDELEIN PARK & RECREATION DISTRICT

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Tullamore Dam?

Tullamore 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 Tullamore Dam?

Tullamore Dam is owned by MUNDELEIN PARK & RECREATION DISTRICT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Tullamore Dam built?

Tullamore Dam was completed in 1994, making it 32 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 Tullamore Dam?

Tullamore 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 Tullamore Dam?

Tullamore Dam has a dam height of 17 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 Tullamore Dam last inspected?

Tullamore Dam was last inspected on May 31, 2023. 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.