Rimrock Dam

REPUBLICAN RIVER-TR· Geary, Kansas· Earth· 25 ft tall

High Hazard Recreation Local Government

Key Takeaway

Rimrock Dam is classified as high hazard in Kansas. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height	25 ft (taller than 46.5% in KS)
Dam Length	450 ft
Dam Type	Earth
Max Storage	85 acre-ft
Normal Storage	53 acre-ft

Surface Area	6 acres
Drainage Area	1 sq mi
Max Discharge	11 cfs
NID ID	KS00727

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes

Last Inspection: May 27, 2015

State Regulated: Yes

Regulatory Agency: KS Dept. of Agriculture

Ownership

JUNCTION CITY, CITY OF

Local Government

Nearby Dams

Dam KS00731

Geary, KS

Low Hazard 33 ft

Breakneck Lake

Riley, KS

Low Hazard 25 ft

Dam KS00725

Geary, KS

Low Hazard 23 ft

Moon Lake

Geary, KS

Low Hazard 26 ft

Farm Pond

Geary, KS

Low Hazard 16 ft

Fourmile Creek Roadfill Dam

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High Hazard 29 ft

Milford Dam

Geary, KS

High Hazard

Dam KS07165

Dickinson, KS

Low Hazard 39 ft

Frequently Asked Questions

What is the hazard classification of Rimrock Dam?

Rimrock Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Rimrock Dam?

Rimrock Dam is owned by JUNCTION CITY, CITY OF (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Rimrock Dam?

Rimrock 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 Rimrock Dam?

Rimrock Dam 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.

When was Rimrock Dam last inspected?

Rimrock Dam was last inspected on May 27, 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.