Shipman Reservoir Dam

TRIB COOP BRANCH· Macoupin, Illinois· Built 1967· Earth· 36 ft tall
Significant Hazard Water Supply Private

Key Takeaway

Shipman Reservoir Dam is classified as significant hazard in Illinois. It was completed in 1967 and is 59 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 36 ft (taller than 78.2% in IL)
Dam Length385 ft
Dam TypeEarth
Max Storage218 acre-ft
Normal Storage114 acre-ft
Surface Area13 acres
Drainage Area1 sq mi
Max Discharge1,873 cfs
Year Completed1967 (59 years old)
NID IDIL01042

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: Yes
Last Inspection: February 25, 2021
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

VILLAGE OF SHIPMAN

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Shipman Reservoir Dam?

Shipman Reservoir 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 Shipman Reservoir Dam?

Shipman Reservoir Dam is owned by VILLAGE OF SHIPMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Shipman Reservoir Dam built?

Shipman Reservoir Dam was completed in 1967, making it 59 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 Shipman Reservoir Dam?

Shipman Reservoir Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Shipman Reservoir Dam?

Shipman Reservoir Dam has a dam height of 36 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 Shipman Reservoir Dam last inspected?

Shipman Reservoir Dam was last inspected on February 25, 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.