Orchards Block 96 Reservoir Dam, located in Walla Walla, Washington, is a privately owned earth dam constructed in 2001 for irrigation purposes.
Wind
Humidity
The dam stands at a hydraulic height of 32 feet and a structural height of 28 feet, with a maximum storage capacity of 58 acre-feet. The reservoir covers a surface area of 5.44 acres and drains an area of 0.13 square miles, with a maximum discharge capacity of 360 cubic feet per second into the Snake River.
This high-hazard potential dam is regulated by the Washington Department of Ecology and undergoes regular inspections, with the last assessment in October 2018 rating its condition as satisfactory. The emergency action plan for the dam was last revised in January 2019, ensuring preparedness for any unforeseen events. The dam's primary purpose of irrigation plays a crucial role in supporting agricultural activities in the region, highlighting the importance of its maintenance and operation.
Overall, Orchards Block 96 Reservoir Dam serves as a vital water resource infrastructure in the area, providing essential irrigation water for agricultural activities along the Snake River. With its strategic location and significant storage capacity, the dam plays a crucial role in water management and supports the local economy. Continuous monitoring and maintenance efforts ensure the dam's safety and reliable operation, contributing to sustainable water resource management in Walla Walla, Washington.
Year Completed |
2001 |
River Or Stream |
Snake River |
Primary Dam Type |
Earth |
Surface Area |
5.44 |
Hydraulic Height |
32 |
Drainage Area |
0.13 |
Nid Storage |
58 |
Structural Height |
28 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
32 |
Walla Walla River Near Touchet
|
832cfs |
Mill Creek At Walla Walla
|
165cfs |
Mill Creek At Five Mile Rd Br Nr Walla Walla
|
634cfs |
Tucannon River Near Starbuck
|
160cfs |
Mill Creek Near Walla Walla
|
53cfs |
Palouse River At Hooper
|
645cfs |