located in Gorst that travels west from SR 16 to southbound SR 3. The spur route was added to the state highway system in 1988 after SR 16 was re-aligned to avoid traffic signals in Gorst. WSDOT included the road in its annual AADT survey in 2012 and calculated that between 4,100 and 8,600 vehicles used the spur route. Alternate route SR 16 AR is an unsigned alternate route serving traffic passing through the eastbound toll plaza (rather than using electronic toll collection) approaching the Tacoma Narrows Bridge in Pierce County. The route was added to the state highway system in 2007 after the completion of the eastbound Tacoma Narrows Bridge on July 15. WSDOT included the road in its annual AADT survey in 2012 and calculated that 9,100 vehicles used the alternate route. Exit list References External links Highways of Washington State 016 Transportation in Pierce County, Washington Transportation in Kitsap County, Washington