Lake Minterwood Dam

Tr-Puget Sound· Pierce, Washington· Built 1967· Earth·
Low Hazard Recreation Private

Key Takeaway

Lake Minterwood Dam is classified as low hazard in Washington. It was completed in 1967 and is 59 years old. Its primary use is recreation.

Physical Details

Dam Length345 ft
Dam TypeEarth
Max Storage185 acre-ft
Normal Storage130 acre-ft
Surface Area42 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1967 (59 years old)
NID IDWA00116

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

Minterwood Homeowners Assn

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Minterwood Dam?

Lake Minterwood 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 Lake Minterwood Dam?

Lake Minterwood Dam is owned by Minterwood Homeowners Assn (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Minterwood Dam built?

Lake Minterwood Dam was completed in 1967, making it 59 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 Lake Minterwood Dam?

Lake Minterwood Dam serves the following purposes: Recreation. 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.