Rockman Pond Dam 1

TR- GRASSY CREEK· Union, Illinois· Built 1973· Earth· 34 ft tall
Low Hazard Fish And Wildlife Pond Recreation Private

Key Takeaway

Rockman Pond Dam 1 is classified as low hazard in Illinois. It was completed in 1973 and is 53 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 34 ft (taller than 73.9% in IL)
Dam Length550 ft
Dam TypeEarth
Max Storage83 acre-ft
Normal Storage60 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Max Discharge226 cfs
Year Completed1973 (53 years old)
NID IDIL40146

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: September 10, 2019
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

BARRETT ROCKMAN;BARRETT ROCKMAN

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Rockman Pond Dam 1?

Rockman Pond Dam 1 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 Rockman Pond Dam 1?

Rockman Pond Dam 1 is owned by BARRETT ROCKMAN;BARRETT ROCKMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Rockman Pond Dam 1 built?

Rockman Pond Dam 1 was completed in 1973, making it 53 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 Rockman Pond Dam 1?

Rockman Pond Dam 1 serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Rockman Pond Dam 1?

Rockman Pond Dam 1 has a dam height of 34 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 Rockman Pond Dam 1 last inspected?

Rockman Pond Dam 1 was last inspected on September 10, 2019. 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.