Elmer Dam

Tr-Mason Creek· Clark, Washington· Built 1958· Earth·

High Hazard Irrigation Private

Key Takeaway

Elmer Dam is classified as high hazard in Washington. It was completed in 1958 and is 68 years old. Its primary use is irrigation. 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 Length	760 ft
Dam Type	Earth
Max Storage	38 acre-ft
Normal Storage	0 acre-ft

Surface Area	18 acres
Drainage Area	0 sq mi
Max Discharge	36 cfs
Year Completed	1958 (68 years old)
NID ID	WA01054

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 18, 2023

State Regulated: Yes

Regulatory Agency: Washington Dept of Ecology

Ownership

Pash, Steve & Tina

Private

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Frequently Asked Questions

What is the hazard classification of Elmer Dam?

Elmer 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 Elmer Dam?

Elmer Dam is owned by Pash, Steve & Tina (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Elmer Dam built?

Elmer Dam was completed in 1958, making it 68 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 Elmer Dam?

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

When was Elmer Dam last inspected?

Elmer Dam was last inspected on August 18, 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.