Venado Grande Lake Dam

TRIB MACKINAW RIVER· Tazewell, Illinois· Built 1975· Earth· 44 ft tall
Significant Hazard Recreation Private

Key Takeaway

Venado Grande Lake Dam is classified as significant hazard in Illinois. It was completed in 1975 and is 51 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 44 ft (taller than 87.3% in IL)
Dam Length415 ft
Dam TypeEarth
Max Storage1.2K acre-ft
Normal Storage776 acre-ft
Year Completed1975 (51 years old)
NID IDIL00993

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: No
Last Inspection: April 19, 2021
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

VENADO LAKE HOMEOWNERS ASSOCIATION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Venado Grande Lake Dam?

Venado Grande Lake 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 Venado Grande Lake Dam?

Venado Grande Lake Dam is owned by VENADO LAKE HOMEOWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Venado Grande Lake Dam built?

Venado Grande Lake Dam was completed in 1975, making it 51 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 Venado Grande Lake Dam?

Venado Grande Lake 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 Venado Grande Lake Dam?

Venado Grande Lake Dam has a dam height of 44 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 Venado Grande Lake Dam last inspected?

Venado Grande Lake Dam was last inspected on April 19, 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.