page_title: Washington State Route 99
section_title: Public transit
hierarchical_section_title: Washington State Route 99 / Public transit
caption_attribution_description: A King County Metro RapidRide bus conducting Pre-Revenue Service Simulation.
context_page_description: State Route 99, also known as the Pacific Highway, is a state highway in the Seattle metropolitan area, part of the U.S. state of Washington. It runs 49 miles from Fife in the south to Everett in the north, passing through the cities of Federal Way, SeaTac, Seattle, Shoreline, and Lynnwood. The route primarily follows arterial streets but has several freeway segments, including the SR 99 Tunnel in Downtown Seattle. SR 99 was officially named the William P. Stewart Memorial Highway by the state legislature in 2016, after a campaign to replace an unofficial moniker honoring Confederate president Jefferson Davis.
  SR 99 was originally a section of U.S. Route 99, which was once the state's primary north–south highway. US 99 was created in 1926 and replaced earlier local roads that date back to the 1890s and state roads designated as early as 1913. The highway was moved onto the Alaskan Way Viaduct in 1953, replacing a congested stretch through Downtown Seattle, and other sections were built to expressway standards in the 1950s.
  US 99 was ultimately replaced by the Tacoma–Everett section of Interstate 5, which opened in stages between 1965 and 1969.
context_section_description: SR 99 is a major regional public transit corridor and carries several bus rapid transit routes and a light rail line in SeaTac. The highway features bus lanes and business access and transit lanes (BAT lanes) in several locations to give buses traffic priority while retaining access to right turns.
  Pierce Transit route 500 runs on the SR 99 and Pacific Highway corridor between Tacoma Dome Station and Federal Way Transit Center. Through Federal Way and SeaTac, the highway is served by the RapidRide A Line, an 11-mile (18 km) rapid bus route that debuted in 2010 and features enhanced bus stops and transit signal priority. Sound Transit's Link light rail trains on Central Link run along elevated tracks above or near SR 99 from Angle Lake station to Tukwila International Boulevard station at the SR 518 interchange. The Alaskan Way Viaduct carried several non-stop routes connecting Downtown Seattle to West Seattle (including the RapidRide C Line) and Burien.
  Aurora Avenue carries the RapidRide E Line, which transports 18,000 passengers daily and is the busiest bus route in the King County Metro system. The E Line debuted in 2014, replacing Route 358—itself a replacement for Route 359, a route number that was retired in 1999 after a Metro bus was involved in a shooting and crashed off the Aurora Bridge. The E Line terminates in Downtown Seattle and near the county line at the Aurora Village Transit Center, where Community Transit's route 101 and Swift Blue Line begins. Swift features off-board fare payment and longer spacing between stops, and runs from Shoreline to Everett Station via Evergreen Way. The Everett Mall Way section of SR 99 is served by Everett Transit route 7, which connects the Everett Mall to Downtown Everett and Everett Station.
caption: The RapidRide A Line, operated by King County Metro between Federal Way and Tukwila
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