Cranberry Lake Stormwater Detention Dam

Cranberry Creek· Mason, Washington· Built 1990· Earth·
High Hazard Flood Risk Reduction Private

Key Takeaway

Cranberry Lake Stormwater Detention Dam is classified as high hazard in Washington. It was completed in 1990 and is 36 years old. Its primary use is flood risk reduction. 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 Length290 ft
Dam TypeEarth
Max Storage3.4K acre-ft
Normal Storage3.1K acre-ft
Surface Area450 acres
Drainage Area7 sq mi
Max Discharge655 cfs
Year Completed1990 (36 years old)
NID IDWA00594

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: August 10, 2023
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Lake Limerick Country Club Inc

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cranberry Lake Stormwater Detention Dam?

Cranberry Lake Stormwater Detention 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 Cranberry Lake Stormwater Detention Dam?

Cranberry Lake Stormwater Detention Dam is owned by Lake Limerick Country Club Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cranberry Lake Stormwater Detention Dam built?

Cranberry Lake Stormwater Detention Dam was completed in 1990, making it 36 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 Cranberry Lake Stormwater Detention Dam?

Cranberry Lake Stormwater Detention Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Cranberry Lake Stormwater Detention Dam last inspected?

Cranberry Lake Stormwater Detention Dam was last inspected on August 10, 2023. 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.