Easterday Reservoir
Easterday Reservoir is an earth dam located in Malheur County, Oregon, built in 1948. It carries a Low hazard potential classification.
About Easterday Reservoir
The primary purpose of Easterday Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bill Williams (private). It impounds the Granite Creek near Riverside.
The dam stands 16 feet tall and stretches 2,350 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 1,243 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.
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 08/23/2011. That was over 14 years ago.
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Location
| State | Oregon |
| County | Malheur |
| Nearest City | Riverside |
| River/Stream | Granite Creek |
| Coordinates | 43.52054, -118.00625 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 14 ft |
| Dam Length | 2,350 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 1,243 acre-ft |
| Max Storage | 1,243 acre-ft |
| Normal Storage | 1,044 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 350 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BILL WILLIAMS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/23/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00172 |
| Federal ID | OR00172 |
| More Info | State Dam Safety Program |