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CRAIG

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March 28, 2025


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Craig is a private water resource structure located in remote Washington, Idaho, designed by USDA NRCS for irrigation purposes. This earth dam, constructed in 1978, stands at a height of 18.2 meters and has a storage capacity of 68 acre-feet. The dam spans 750 meters and is situated on an unnamed stream called Tennison Creek, in the Walla Walla District. Despite its low hazard potential and fair condition assessment, the dam is regulated by the Idaho Department of Water Resources, with inspection, enforcement, and permitting responsibilities falling under the state jurisdiction.

With a drainage area of 1.1 square kilometers and a maximum discharge capacity of 129 cubic meters per second, Craig serves as a vital water management infrastructure in the region. Its controlled by an uncontrolled spillway, 35 meters wide, providing necessary safety measures. The dam's inspection frequency is set at 5 years, with the last assessment conducted in June 2018. Although classified as having a moderate risk level, with a risk factor of 3, Craig continues to play a crucial role in supporting irrigation activities in the area. As a climate and water resource enthusiast, monitoring the condition and management of structures like Craig is essential for ensuring sustainable water use in the face of changing environmental conditions.

Year_Completed 1978
Dam_Height 18.2
River_Or_Stream UNNAMED STREAM TENNISON CREEK
Dam_Length 750
Surface_Area 13
Hydraulic_Height 15.1
Drainage_Area 1.1
Nid_Storage 68
Hazard_Potential Low
Foundations Rock, Soil
Nid_Height 18
       

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