Salmon Creek

Salmon Creek, Gastineau Inlet· City and Borough of Juneau, Alaska· Built 1914· Arch· 170 ft tall

Key Takeaway

Salmon Creek is classified as high hazard in Alaska. It was completed in 1914 and is 112 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 170 ft (taller than 91.8% in AK)
Dam Length648 ft
Dam TypeArch
Max Storage18.0K acre-ft
Normal Storage12.0K acre-ft
Surface Area165 acres
Drainage Area5 sq mi
Max Discharge810 cfs
Year Completed1914 (112 years old)
NID IDAK00003

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: July 19, 2022
State Regulated: No

Ownership

Alaska Electric Light and Power Company

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Salmon Creek?

Salmon Creek is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Salmon Creek?

Salmon Creek is owned by Alaska Electric Light and Power Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Salmon Creek built?

Salmon Creek was completed in 1914, making it 112 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 Salmon Creek?

Salmon Creek serves the following purposes: Hydroelectric, Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Salmon Creek?

Salmon Creek has a dam height of 170 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 Salmon Creek last inspected?

Salmon Creek was last inspected on July 19, 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.