Sunheaven Farms Reservoir is an earth dam located in Benton County, Washington, built in 1986. It carries a Low hazard potential classification.
Dam profile
NID height · 13 ft13 ft tall and 2,470 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sunheaven Farms Reservoir
The primary purpose of Sunheaven Farms Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by R. Munn Land Co LLC (private). It impounds the Columbia River-offstream.
The dam stands 13 feet tall and stretches 2,470 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1986, the structure is 40 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Washington |
| County | Benton |
| River/Stream | Columbia River-offstream |
| Coordinates | 46.06788, -119.55266 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Length | 2,470 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 66 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 60 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | R. Munn Land Co LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00497 |
| Federal ID | WA00497 |
| More Info | State Dam Safety Program |