Oak Lake Estates Dam

TRIB LOST CREEK· Tazewell, Illinois· Built 1978· Earth· 30 ft tall
Low Hazard Recreation Private

Key Takeaway

Oak Lake Estates Dam is classified as low hazard in Illinois. It was completed in 1978 and is 48 years old. Its primary use is recreation.

Physical Details

Dam Height 30 ft (taller than 61.3% in IL)
Dam Length400 ft
Dam TypeEarth
Max Storage150 acre-ft
Normal Storage100 acre-ft
Year Completed1978 (48 years old)
NID IDIL50093

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: May 4, 2023
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

LEE LANGEBERG

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Oak Lake Estates Dam?

Oak Lake Estates 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 Oak Lake Estates Dam?

Oak Lake Estates Dam is owned by LEE LANGEBERG (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Oak Lake Estates Dam built?

Oak Lake Estates Dam was completed in 1978, making it 48 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 Oak Lake Estates Dam?

Oak Lake Estates Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Oak Lake Estates Dam?

Oak Lake Estates Dam has a dam height of 30 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 Oak Lake Estates Dam last inspected?

Oak Lake Estates Dam was last inspected on May 4, 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.