Three Rivers Mill Pond Dam

Sauk River-Offstream· Snohomish, Washington· Built 1946· Earth·

Key Takeaway

Three Rivers Mill Pond Dam is classified as low hazard in Washington. It was completed in 1946 and is 80 years old. Its primary use is fire protection.

Physical Details

Dam Length1,000 ft
Dam TypeEarth
Max Storage56 acre-ft
Normal Storage42 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1946 (80 years old)
NID IDWA00204

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Hampton Lumber Mills WA Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Three Rivers Mill Pond Dam?

Three Rivers Mill Pond Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Three Rivers Mill Pond Dam?

Three Rivers Mill Pond Dam is owned by Hampton Lumber Mills WA Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Three Rivers Mill Pond Dam built?

Three Rivers Mill Pond Dam was completed in 1946, making it 80 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 Three Rivers Mill Pond Dam?

Three Rivers Mill Pond Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

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.