Anderson Lake Dam

Unnamed Tr-Sherwood Creek· Mason, Washington· Built 1966· Earth·
High Hazard Recreation Private

Key Takeaway

Anderson Lake Dam is classified as high hazard in Washington. It was completed in 1966 and is 60 years old. Its primary use is recreation. 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 Length240 ft
Dam TypeEarth
Max Storage600 acre-ft
Normal Storage370 acre-ft
Surface Area44 acres
Drainage Area1 sq mi
Max Discharge520 cfs
Year Completed1966 (60 years old)
NID IDWA00114

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: December 30, 2021
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Lakeland Village Community Club

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Anderson Lake Dam?

Anderson Lake Dam 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 Anderson Lake Dam?

Anderson Lake Dam is owned by Lakeland Village Community Club (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Anderson Lake Dam built?

Anderson Lake Dam was completed in 1966, making it 60 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 Anderson Lake Dam?

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

When was Anderson Lake Dam last inspected?

Anderson Lake Dam was last inspected on December 30, 2021. 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.