Ritchey Farm Reservoir is an earth dam located in Washington County, Oregon, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 300 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 Ritchey Farm Reservoir
The primary purpose of Ritchey Farm Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Treesap LLC Dba: Hines Growers (private). It impounds the Forest Grove Effluent near Forest Grove.
The dam stands 12 feet tall and stretches 300 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 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. The most recent inspection on record was 10/06/2017.
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Location
| State | Oregon |
| County | Washington |
| Nearest City | Forest Grove |
| River/Stream | Forest Grove Effluent |
| Coordinates | 45.51278, -123.13639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 300 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 6 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Treesap LLC Dba: Hines Growers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/06/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR02826 |
| Federal ID | OR02826 |
| More Info | State Dam Safety Program |