 SR 823 is maintained by the Washington State Department of Transportation (WSDOT), which conducts an annual survey on the state's highways to measure traffic volume in terms of average annual daily traffic.The highway's 2016 traffic volumes ranged from a minimum of 4,500 vehicles at its northern terminus with SR 821 to a maximum of 31,000 vehicles between Yakima and Selah.SR 823 also has a high volume of freight traffic, carrying fruit from the greater Yakima Valley to processing plants in Selah, and is designated as a Strategic Freight Corridor by the state government.