Sunheaven Farms Reservoir

Columbia River-Offstream· Benton, Washington· Built 1986· Earth·
Low Hazard Irrigation Private

Key Takeaway

Sunheaven Farms Reservoir is classified as low hazard in Washington. It was completed in 1986 and is 40 years old. Its primary use is irrigation.

Physical Details

Dam Length2,470 ft
Dam TypeEarth
Max Storage100 acre-ft
Normal Storage66 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Year Completed1986 (40 years old)
NID IDWA00497

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

R. Munn Land Co LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sunheaven Farms Reservoir?

Sunheaven Farms 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 Sunheaven Farms Reservoir?

Sunheaven Farms Reservoir is owned by R. Munn Land Co LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sunheaven Farms Reservoir built?

Sunheaven Farms Reservoir was completed in 1986, making it 40 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 Sunheaven Farms Reservoir?

Sunheaven Farms Reservoir 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.