K2h Farms Mcnary No 1 Reservoir

Columbia River-Offstream· Benton, Washington· Built 1980· Earth·
Low Hazard Irrigation Private

Key Takeaway

K2h Farms Mcnary No 1 Reservoir is classified as low hazard in Washington. It was completed in 1980 and is 46 years old. Its primary use is irrigation.

Physical Details

Dam Length1,600 ft
Dam TypeEarth
Max Storage125 acre-ft
Normal Storage87 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge250 cfs
Year Completed1980 (46 years old)
NID IDWA00399

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: October 23, 1998
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

K2H Farms

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of K2h Farms Mcnary No 1 Reservoir?

K2h Farms Mcnary No 1 Reservoir 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 K2h Farms Mcnary No 1 Reservoir?

K2h Farms Mcnary No 1 Reservoir is owned by K2H Farms (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was K2h Farms Mcnary No 1 Reservoir built?

K2h Farms Mcnary No 1 Reservoir was completed in 1980, making it 46 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 K2h Farms Mcnary No 1 Reservoir?

K2h Farms Mcnary No 1 Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was K2h Farms Mcnary No 1 Reservoir last inspected?

K2h Farms Mcnary No 1 Reservoir was last inspected on October 23, 1998. 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.