Lucky Friday No 3

SOUTH FORK COEUR D ALENE RIVER COEUR D ALENE RIVER· Shoshone, Idaho· Built 1979· 102 ft tall
Significant Hazard Tailings Private

Key Takeaway

Lucky Friday No 3 is classified as significant hazard in Idaho. It was completed in 1979 and is 47 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 102 ft (taller than 93.1% in ID)
Dam Length3,400 ft
Normal Storage1.1K acre-ft
Surface Area25 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1979 (47 years old)
Year Modified2009
NID IDID00390

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: July 30, 2020
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lucky Friday No 3?

Lucky Friday No 3 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 Lucky Friday No 3?

Lucky Friday No 3 is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lucky Friday No 3 built?

Lucky Friday No 3 was completed in 1979, making it 47 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 Lucky Friday No 3?

Lucky Friday No 3 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lucky Friday No 3?

Lucky Friday No 3 has a dam height of 102 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 Lucky Friday No 3 last inspected?

Lucky Friday No 3 was last inspected on July 30, 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.