Whitestone Lake Dam

Tr-Okanogan River· Okanogan, Washington· Built 1930· Rockfill·
Low Hazard Irrigation Recreation Private

Key Takeaway

Whitestone Lake Dam is classified as low hazard in Washington. It was completed in 1930 and is 96 years old. Its primary use is irrigation.

Physical Details

Dam Length375 ft
Dam TypeRockfill
Max Storage2.7K acre-ft
Normal Storage2.1K acre-ft
Surface Area192 acres
Drainage Area14 sq mi
Max Discharge825 cfs
Year Completed1930 (96 years old)
NID IDWA00326

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
Last Inspection: March 15, 2004
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Whitestone Mounatin Orchard Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Whitestone Lake Dam?

Whitestone Lake 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 Whitestone Lake Dam?

Whitestone Lake Dam is owned by Whitestone Mounatin Orchard Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Whitestone Lake Dam built?

Whitestone Lake Dam was completed in 1930, making it 96 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 Whitestone Lake Dam?

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

When was Whitestone Lake Dam last inspected?

Whitestone Lake Dam was last inspected on March 15, 2004. 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.