Cinnabar

UNNAMED STREAMS COVE CREEK· Washington, Idaho· Built 1975· 26 ft tall
Low Hazard Irrigation Private

Key Takeaway

Cinnabar is classified as low hazard in Idaho. It was completed in 1975 and is 51 years old. Its primary use is irrigation.

Physical Details

Dam Height 26 ft (taller than 46.3% in ID)
Dam Length480 ft
Normal Storage173 acre-ft
Surface Area22 acres
Drainage Area2 sq mi
Max Discharge274 cfs
Year Completed1975 (51 years old)
NID IDID00421

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: May 7, 2020
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

North Cove Creek

Washington, ID

Low Hazard 26 ft

Paddock Valley

Washington, ID

High Hazard 49 ft

Soulen Auxiliary Dike

Washington, ID

Low Hazard 7 ft

Soulen Main Dam

Washington, ID

Significant Hazard 18 ft

Crane Creek Main Dam

Washington, ID

High Hazard 64 ft

Crane Creek Dike

Washington, ID

High Hazard 25 ft

Little Crane Creek

Washington, ID

Low Hazard 33 ft

Indian Creek Pond

Payette, ID

Significant Hazard 28 ft

Frequently Asked Questions

What is the hazard classification of Cinnabar?

Cinnabar 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 Cinnabar?

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

When was Cinnabar built?

Cinnabar was completed in 1975, making it 51 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 Cinnabar?

Cinnabar 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 Cinnabar?

Cinnabar has a dam height of 26 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 Cinnabar last inspected?

Cinnabar was last inspected on May 7, 2020. 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.