Lone Tree Section 23 Tails Dam

HUMBOLDT RIVER-OS· Humboldt, Nevada· Built 1996· Earth· 180 ft tall
Significant Hazard Flood Risk Reduction Tailings Other Private

Key Takeaway

Lone Tree Section 23 Tails Dam is classified as significant hazard in Nevada. It was completed in 1996 and is 30 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 180 ft (taller than 96.8% in NV)
Dam Length9,622 ft
Dam TypeEarth
Max Storage20.0K acre-ft
Normal Storage17.8K acre-ft
Surface Area245 acres
Drainage Area0 sq mi
Max Discharge10 cfs
Year Completed1996 (30 years old)
NID IDNV10272

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: Yes
Last Inspection: July 7, 2022
State Regulated: Yes
Regulatory Agency: NEVADA DWR

Ownership

Goldcorp DEE LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lone Tree Section 23 Tails Dam?

Lone Tree Section 23 Tails Dam 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 Lone Tree Section 23 Tails Dam?

Lone Tree Section 23 Tails Dam is owned by Goldcorp DEE LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lone Tree Section 23 Tails Dam built?

Lone Tree Section 23 Tails Dam was completed in 1996, making it 30 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 Lone Tree Section 23 Tails Dam?

Lone Tree Section 23 Tails Dam serves the following purposes: Flood Risk Reduction, Tailings, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lone Tree Section 23 Tails Dam?

Lone Tree Section 23 Tails Dam has a dam height of 180 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 Lone Tree Section 23 Tails Dam last inspected?

Lone Tree Section 23 Tails Dam was last inspected on July 7, 2022. 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.