Rock Creek

ROCK CREEK NORTH BOULDER CREEK· Owyhee, Idaho· Built 1965· 37 ft tall
Significant Hazard Irrigation Private

Key Takeaway

Rock Creek is classified as significant hazard in Idaho. It was completed in 1965 and is 61 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 37 ft (taller than 68.4% in ID)
Dam Length475 ft
Normal Storage1.2K acre-ft
Surface Area74 acres
Drainage Area54 sq mi
Max Discharge2,050 cfs
Year Completed1965 (61 years old)
NID IDID00237

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: June 5, 2019
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Rock Creek?

Rock Creek 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 Rock Creek?

Rock Creek is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Rock Creek built?

Rock Creek was completed in 1965, making it 61 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 Rock Creek?

Rock Creek 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 Rock Creek?

Rock Creek has a dam height of 37 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 Rock Creek last inspected?

Rock Creek was last inspected on June 5, 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.