Lake Ronnie Dam

TRIB ROCKHOUSE CREEK· Monroe, Illinois· Built 1952· Earth· 17 ft tall
Low Hazard Recreation Private

Key Takeaway

Lake Ronnie Dam is classified as low hazard in Illinois. It was completed in 1952 and is 74 years old. Its primary use is recreation.

Physical Details

Dam Height 17 ft (taller than 22.3% in IL)
Dam Length480 ft
Dam TypeEarth
Max Storage130 acre-ft
Normal Storage94 acre-ft
Year Completed1952 (74 years old)
NID IDIL00265

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: June 8, 2015
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

LAKE RONNIE, INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Ronnie Dam?

Lake Ronnie 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 Lake Ronnie Dam?

Lake Ronnie Dam is owned by LAKE RONNIE, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Ronnie Dam built?

Lake Ronnie Dam was completed in 1952, making it 74 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 Lake Ronnie Dam?

Lake Ronnie 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 Lake Ronnie Dam?

Lake Ronnie 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 Lake Ronnie Dam last inspected?

Lake Ronnie Dam was last inspected on June 8, 2015. 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.