Williams-Sherman Reservoir, also known as Upper Twelvemile Reservoir, is a privately owned water resource located in Harney, Oregon.
Wind
Humidity
Constructed in 1919, this earth dam reservoir serves primarily for irrigation purposes along the North Fork 12 Mile Creek. With a capacity of 300 acre-feet and a surface area of 22 acres, the reservoir plays a crucial role in supporting agricultural activities in the region.
Despite its low hazard potential, the reservoir is regulated by the Oregon Water Resources Department, ensuring its proper inspection, maintenance, and enforcement of regulations. The dam stands at 25 feet high and has a hydraulic height of 11 feet, with a maximum discharge of 665.5 cubic feet per second. In case of emergencies, the reservoir has an uncontrolled spillway, although specific emergency action plans and risk management measures are yet to be fully documented.
Overall, Williams-Sherman Reservoir is a vital water resource in the region, contributing to the irrigation needs of the area. Its moderate risk rating indicates the importance of regular inspections and adherence to safety guidelines to ensure the continued functionality and safety of the dam. As water resource and climate enthusiasts, this reservoir presents an intriguing case study in balancing water management for agricultural purposes while mitigating potential risks associated with dam infrastructure.
Year Completed |
1919 |
Dam Length |
600 |
Dam Height |
25 |
River Or Stream |
NORTH FORK 12 MILE CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
11 |
Drainage Area |
9.1 |
Nid Storage |
300 |
Structural Height |
25 |
Hazard Potential |
Low |
Nid Height |
25 |
| Location | Reservations | Toilets |
|---|---|---|
Delintment Lake
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Doe Springs
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Pendleton Springs Camp
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Buck Spring .
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