Pebble Creek Dam

PEBBLE PARK· Winnebago, Illinois· Built 1984· Earth· 21 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Pebble Creek Dam is classified as high hazard in Illinois. It was completed in 1984 and is 42 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 21 ft (taller than 32.8% in IL)
Dam Length900 ft
Dam TypeEarth
Max Storage242 acre-ft
Normal Storage0 acre-ft
Max Discharge6,167 cfs
Year Completed1984 (42 years old)
NID IDIL50052

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: April 27, 2021
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

CITY OF LOVES PARK

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pebble Creek Dam?

Pebble Creek 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 Pebble Creek Dam?

Pebble Creek Dam is owned by CITY OF LOVES PARK (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Pebble Creek Dam built?

Pebble Creek Dam was completed in 1984, making it 42 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 Pebble Creek Dam?

Pebble Creek 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 Pebble Creek Dam?

Pebble Creek Dam has a dam height of 21 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 Pebble Creek Dam last inspected?

Pebble Creek Dam was last inspected on April 27, 2021. 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.