Jack Freeman

TR CHEYENNE· Ziebach, South Dakota· Built 1960· Earth· 25 ft tall
Low Hazard Irrigation Private

Key Takeaway

Jack Freeman is classified as low hazard in South Dakota. It was completed in 1960 and is 66 years old. Its primary use is irrigation.

Physical Details

Dam Height 25 ft (taller than 57.4% in SD)
Dam Length600 ft
Dam TypeEarth
Max Storage315 acre-ft
Normal Storage129 acre-ft
Max Discharge1,500 cfs
Year Completed1960 (66 years old)
NID IDSD00526

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
State Regulated: Yes
Regulatory Agency: DANR

Ownership

JACK FREEMAN

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jack Freeman?

Jack Freeman 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 Jack Freeman?

Jack Freeman is owned by JACK FREEMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Jack Freeman built?

Jack Freeman was completed in 1960, making it 66 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 Jack Freeman?

Jack Freeman serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Jack Freeman?

Jack Freeman has a dam height of 25 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.

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.