SR 24 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 busiest section of the highway, at its interchange with I-82, carried a daily average of 23,000 vehicles in 2016; the least busiest section of the highway, northeast of the Vernita Bridge, carried only 1,100 vehicles. A short section between I-82 and Faucher Road in Moxee is designated as a MAP-21 arterial under the National Highway System, a network of roads identified as important to the national economy, defense, and mobility.