Koreis Dam

Tr-Siphon Creek-Offstream· Franklin, Washington· Built 1982· Earth·
Low Hazard Irrigation Private

Key Takeaway

Koreis Dam is classified as low hazard in Washington. It was completed in 1982 and is 44 years old. Its primary use is irrigation.

Physical Details

Dam Length5,900 ft
Dam TypeEarth
Max Storage82 acre-ft
Normal Storage52 acre-ft
Surface Area13 acres
Drainage Area0 sq mi
Max Discharge2 cfs
Year Completed1982 (44 years old)
NID IDWA00484

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

DennisKoreis

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Koreis Dam?

Koreis 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 Koreis Dam?

Koreis Dam is owned by DennisKoreis (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Koreis Dam built?

Koreis Dam was completed in 1982, making it 44 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 Koreis Dam?

Koreis Dam serves the following purposes: Irrigation. 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.