 Griffin Avenue turns southeast and intersects Porter Street, the southern terminus of SR 169, before traveling to an intersection with Roosevelt Avenue, signed as SR 410, where SR 164 ends.Every year, the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume.This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year.