Watson Reservoir
Watson Reservoir is an earth dam located in Crook County, Oregon, built in 1970. It carries a Low hazard potential classification.
About Watson Reservoir
The primary purpose of Watson Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Hamilton Ranch (private). It impounds the Watson Creek near Post.
The dam stands 34 feet tall and stretches 900 feet across, creates a reservoir covering 103 acres, has a maximum storage capacity of 2,102 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1970, the structure is well into its service life at over 50 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 06/22/2017.
At 34 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Oregon |
| County | Crook |
| Nearest City | Post |
| River/Stream | Watson Creek |
| Coordinates | 44.16137, -120.10536 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 32 ft |
| Dam Length | 900 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 2,102 acre-ft |
| Max Storage | 2,102 acre-ft |
| Normal Storage | 2,102 acre-ft |
| Surface Area | 103 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 1,250 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | HAMILTON RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/22/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00521 |
| Federal ID | OR00521 |
| More Info | State Dam Safety Program |