Lake Leone Dam

Aleutians West Census Area, Alaska· Built 1945· Buttress·
Significant Hazard Water Supply Private

Key Takeaway

Lake Leone Dam is classified as significant hazard in Alaska. It was completed in 1945 and is 81 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Length24 ft
Dam TypeButtress
Max Storage1.7K acre-ft
Normal Storage1.5K acre-ft
Max Discharge400 cfs
Year Completed1945 (81 years old)
NID IDAK00109

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: November 9, 2011
State Regulated: Yes
Regulatory Agency: AKDNR

Ownership

ALEUT CORPORATION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Leone Dam?

Lake Leone 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 Lake Leone Dam?

Lake Leone Dam is owned by ALEUT CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Leone Dam built?

Lake Leone Dam was completed in 1945, making it 81 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 Lake Leone Dam?

Lake Leone Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Lake Leone Dam last inspected?

Lake Leone Dam was last inspected on November 9, 2011. 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.