Koppert Pond

Lacamas Creek-Offstream· Lewis, Washington· Built 1984· Earth·
High Hazard Recreation Private

Key Takeaway

Koppert Pond is classified as high hazard in Washington. It was completed in 1984 and is 42 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 Length3,820 ft
Dam TypeEarth
Max Storage96 acre-ft
Normal Storage66 acre-ft
Surface Area12 acres
Drainage Area0 sq mi
Max Discharge4 cfs
Year Completed1984 (42 years old)
NID IDWA00500

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: No
Last Inspection: August 14, 2019
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Freece, Warren & Judy

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Koppert Pond?

Koppert Pond 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 Koppert Pond?

Koppert Pond is owned by Freece, Warren & Judy (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Koppert Pond built?

Koppert Pond was completed in 1984, making it 42 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 Koppert Pond?

Koppert Pond 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 Koppert Pond last inspected?

Koppert Pond was last inspected on August 14, 2019. 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.