Icon Materials Pond 4

White River - Offstream· King, Washington· Built 1997· Earth·
Significant Hazard Water Supply Tailings Private

Key Takeaway

Icon Materials Pond 4 is classified as significant hazard in Washington. It was completed in 1997 and is 29 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Length3,600 ft
Dam TypeEarth
Max Storage200 acre-ft
Normal Storage0 acre-ft
Surface Area30 acres
Drainage Area0 sq mi
Max Discharge125 cfs
Year Completed1997 (29 years old)
NID IDWA00683

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes
Last Inspection: November 14, 2023
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Icon Materials

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Icon Materials Pond 4?

Icon Materials Pond 4 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Icon Materials Pond 4?

Icon Materials Pond 4 is owned by Icon Materials (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Icon Materials Pond 4 built?

Icon Materials Pond 4 was completed in 1997, making it 29 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 Icon Materials Pond 4?

Icon Materials Pond 4 serves the following purposes: Water Supply, Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Icon Materials Pond 4 last inspected?

Icon Materials Pond 4 was last inspected on November 14, 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.