State Route 520 (SR 520) is a state highway and freeway in the Seattle metropolitan area, part of the U.S. state of Washington. It runs 13 miles (21 km) from Seattle in the west to Redmond in the east. The freeway connects Seattle to the Eastside region of King County via the Evergreen Point Floating Bridge on Lake Washington. SR 520 intersects several state highways, including Interstate 5 (I-5) in Seattle, I-405 in Bellevue, and SR 202 in Redmond.
Sound Transit (ST), officially the Central Puget Sound Regional Transit Authority, is a public transit agency serving the Seattle metropolitan area in the U.S. state of Washington. It operates the Link light rail system in Seattle and Tacoma, regional Sounder commuter rail, and Sound Transit Express bus service. The agency also coordinates the regional ORCA fare card system, which is also used by local transit operators. In 2019, Sound Transit services carried a total of 48 million passengers and averaged over 161,000 riders on weekdays.
The 1 Line, formerly Central Link, is a light rail line in Seattle, Washington, United States, and part of Sound Transit's Link light rail system. It serves 19 stations in the cities of Seattle, SeaTac, and Tukwila, traveling nearly 25 miles (40 km) between Northgate and Angle Lake stations. The line connects the University District, Downtown Seattle, the Rainier Valley, and Seattle–Tacoma International Airport. The 1 Line carried over 26 million total passengers in 2023, with an average of nearly 80,000 daily passengers on weekdays. It runs for 20 hours per day on weekdays and Saturdays, with headways as low as six minutes during peak hours, and reduced 18-hour service on Sundays and holidays.
Link light rail is a light rail rapid transit system serving the Seattle metropolitan area in the U.S. state of Washington. It is managed by Sound Transit in partnership with local transit providers, and consists of three non-connected lines: the 1 Line in King County, which travels for 26 miles (42 km) between Seattle and Seattle–Tacoma International Airport; the 2 Line in King County's Eastside region between Bellevue and Redmond; and the T Line in Pierce County, which runs for 4 miles (6.4 km) between Downtown Tacoma and Tacoma Dome Station. In 2023, the system had a ridership of 23.9 million, or about 70,600 per weekday as of the first quarter of 2024, primarily on the 1 Line. Trains run at frequencies of 6 to 24 minutes.
The Federal Way Link Extension is a planned Link light rail extension of the 1 Line that will travel 7.8 miles (12.6 km) south from Sea-Tac Airport to Federal Way, along the west side of Interstate 5. It was approved in 2008, but scaled back in 2010 to terminate at Kent Des Moines station. The Star Lake and Federal Way Downtown stations were re-instated in 2016, with the passing of Sound Transit 3. The project began construction in 2020 and is expected to open in 2026.
The 2 Line, also known as the East Link Extension, is a light rail line serving the Eastside region of the Seattle metropolitan area in the U.S. state of Washington. It is part of Sound Transit's Link light rail system and runs for 6.6 miles (10.6 km) in the cities of Bellevue and Redmond. The initial segment serves eight stations between South Bellevue and Redmond Technology stations and opened on April 27, 2024. The full line is scheduled to open in 2025 and is planned to include 18 miles (29 km) from west to east and serve twelve stations in Downtown Seattle, Mercer Island, Bellevue, and Redmond. The 2 Line will continue through the Downtown Seattle Transit Tunnel and share stations with the 1 Line through to Lynnwood City Center station.
International District/Chinatown station is a light rail station that is part of the Downtown Seattle Transit Tunnel in Seattle, Washington, United States. The station is located at the tunnel's south end, at 5th Avenue South and South Jackson Street in the Chinatown-International District neighborhood, and is served by the 1 Line of Sound Transit's Link light rail system. The station is located adjacent to Sound Transit headquarters at Union Station, as well as intermodal connections to Amtrak and Sounder commuter rail at King Street Station and the First Hill Streetcar.
University of Washington station is a light rail station on the University of Washington campus in Seattle, Washington, United States. The station is served by the 1 Line of Sound Transit's Link light rail system, which connects Northgate, Downtown Seattle, and Seattle–Tacoma International Airport. University of Washington station is at the intersection of Montlake Boulevard Northeast and Northeast Pacific Street, adjacent to Husky Stadium and the University of Washington Medical Center.
U District station is a light rail station on the 1 Line of Sound Transit's Link light rail system in Seattle, Washington, United States. It is located in the University District neighborhood, near the University of Washington campus. The underground station has two entrances along Brooklyn Avenue Northeast at 43rd and 45th streets.
Roosevelt station is a light rail station located in the Roosevelt neighborhood of Seattle, Washington, United States. It is served by the 1 Line of Sound Transit's Link light rail system, which continues north to Northgate station and south to Downtown Seattle and SeaTac. The underground station consists of a single island platform connected to the surface via a mezzanine and two entrances along 12th Avenue Northeast at Northeast 65th and 67th streets.
Downtown Redmond station is a future Link light rail station on the north side of Redmond Town Center shopping mall in downtown Redmond, Washington. It will be elevated located along Cleveland Street between 164th and 166th avenues.
South Bellevue station is an elevated light rail station located in Bellevue, Washington, United States, an eastern suburb of Seattle. It opened on April 27, 2024, as the western terminus of the 2 Line of Sound Transit's Link light rail system. The station has a park and ride garage with 1,500 stalls and bus service from King County Metro and Sound Transit Express.
East Main station is an at-grade light rail station in Bellevue, Washington, United States. It is served by the 2 Line, part of Sound Transit's Link light rail system, and opened on April 27, 2024.
Bellevue Transit Center (BTC) is a bus station and light rail station in Bellevue, Washington, a suburb of Seattle. It is the main transit hub for the Eastside of King County, serving 20 routes from King County Metro and Sound Transit Express. The transit center is the western terminus of the RapidRide B Line, which runs east to Redmond.
Wilburton station is an elevated Link light rail station in Bellevue, Washington, United States. It is served by the 2 Line, part of Sound Transit's Link light rail system, and opened in April 2024 as part of the line's starter segment. The station serves the area immediately east of Downtown Bellevue, including Lake Bellevue and the Overlake Hospital Medical Center.
The University Link tunnel is a 3.15-mile (5.07 km) light rail tunnel in Seattle, Washington. The twin-bore tunnel carries Link light rail service on the University Link Extension of Central Link, running from the Downtown Seattle Transit Tunnel to University of Washington station via Capitol Hill station. The 21 ft-wide (6.4 m) tunnels are lined with precast gasketed concrete segments connected with steel bolts and was excavated using three tunnel-boring machines in 2011 and 2012. Light rail service began on March 19, 2016.
Redmond Technology station, formerly Overlake Transit Center, is a bus and light rail station in Redmond, Washington, United States. The bus station opened in 2002 adjacent to State Route 520 on the headquarters campus of Microsoft. It was served by Sound Transit Express and King County Metro, as well as Microsoft's private shuttle buses. The light rail station is the eastern terminus of the 2 Line, part of Sound Transit's Link light rail system, and opened on April 27, 2024.
Overlake Village station is a light rail station in Redmond, Washington, United States. It is at-grade station on the 2 Line, part of Sound Transit's Link light rail system. The station serves the Overlake neighborhood and its existing park and ride. Construction began on the station in 2017 and it opened on April 27, 2024.
Sound Transit 3, abbreviated as ST3, was a ballot measure during the November 2016 elections in Seattle, Washington, proposing an expansion of the regional public transit system. The measure was proposed by Sound Transit, which was established by a similar initiative passed in 1996 and expanded by the Sound Transit 2 vote in 2008, who have operated regional transit systems in the Seattle metropolitan area since 1999. On November 8, 2016, Sound Transit 3 was approved by over 54 percent of voters in the Puget Sound region; voters in Pierce County rejected the measure, but the measure passed in King and Snohomish counties, and had an overall majority.
