SR 522 is highlighted in red.
|Auxiliary route of I-5|
|Defined by RCW|
|Maintained by WSDOT|
|Length||24.64 mi (39.65 km)|
State Route 522 (SR 522) is a state highway in the U.S. state of Washington that serves the Seattle metropolitan area. Approximately 25 miles (40 km) long, it connects the city of Seattle to the northeastern suburbs of Kenmore, Bothell, Woodinville, and Monroe. Its western half is primarily an arterial street, named Lake City Way and Bothell Way, that follows the northern shore of Lake Washington; the eastern half is a grade-separated freeway that runs between Woodinville and Monroe. SR 522 connects several of the metropolitan area's major highways, including Interstate 5 (I-5), I-405, SR 9, and U.S. Route 2 (US 2).
The State Highways of Washington in the U.S. state of Washington comprise a network of over 7,000 miles (11,270 km) of state highways, including all Interstate and U.S. Highways that pass through the state, maintained by the Washington State Department of Transportation (WSDOT). The system spans 8.5% of the state's public road mileage, but carries over half of the traffic. All other public roads in the state are either inside incorporated places or are maintained by the county.
In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.
Washington, officially the State of Washington, is a state in the Pacific Northwest region of the United States. Named for George Washington, the first president of the United States, the state was made out of the western part of the Washington Territory, which was ceded by Britain in 1846 in accordance with the Oregon Treaty in the settlement of the Oregon boundary dispute. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is sometimes referred to as Washington State, to distinguish it from Washington, D.C., the capital of the United States, which is often shortened to Washington.
The present-day route of SR 522 was built in stages between 1907 and 1965, beginning with the Red Brick Road from Seattle to Bothell, then part of the Pacific Highway and later US 99. The road later became a branch of Primary State Highway 2 (PSH 2) in 1937, and was extended east to Redmond and North Bend. A branch of the Stevens Pass Highway was built to connect PSH 2 in Bothell and Monroe in 1965, and was incorporated into SR 202 after it was designated in 1964. The Bothell–Monroe highway was re-designated as part of SR 522 in 1970, leaving SR 202 on the Bothell–North Bend highway.
U.S. Route 99 (US 99) was a main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the US–Mexico border to Blaine, Washington, on the U.S.-Canada border. It was assigned in 1926 and existed until it was replaced for the most part by Interstate 5. Known also as the "Golden State Highway" and "The Main Street of California", US 99 was important throughout much of the 1930s as a route for Dust Bowl immigrant farm workers to traverse the state. Large portions are now California's State Route 99 (SR 99), Oregon Route 99, 99W, 99E and Washington's SR 99. The highway connected to British Columbia Highway 99 at the Canada–US border.
Redmond is a city in King County, Washington, United States, located 16 miles (26 km) east of Seattle. The population was 64,291 in a 2017 census estimate. Redmond is commonly recognized as the home of Microsoft and Nintendo of America. With an annual bike race on city streets and the state's only velodrome, Redmond is also known as the "Bicycle Capital of the Northwest".
North Bend is a city in King County, Washington, United States on the outskirts of the Seattle, Washington metropolitan area. The population was 6,739 in a 2016 census estimate.
Since the late 1990s, the SR 522 corridor between Woodinville and Monroe has been partially converted to a freeway to address safety concerns and a growing population. Portions of the highway near Woodinville and Monroe were widened between 2001 and 2014, while other sections near Maltby remain two lanes wide and undivided, with improvement projects left unfunded.
Maltby is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 10,830 at the 2010 census.
SR 522, named Lake City Way within Seattle city limits, begins at an interchange with I-5 in the Roosevelt neighborhood of northern Seattle, east of Green Lake. The interchange only allows movements south towards Downtown Seattle on I-5, and includes a connection to the freeway's reversible express lane system. The highway travels northeast from the interchange, tunneling under the intersection of Roosevelt Way NE and NE 75th Street; the intersection itself is connected to SR 522 by a series of ramps to collector streets. Lake City Way continues northeast through Maple Leaf as a four-lane arterial street before turning north on its approach to Thornton Creek. After crossing the creek, the highway enters the Lake City neighborhood, passing several car dealerships. Lake City itself is a designated urban village, with mixed-use development and apartment buildings that are centered around the intersection of Lake City Way between NE 125th Street and NE 145th Street. At NE 145th Street, SR 522 intersects SR 523 and crosses into Lake Forest Park.
The terms city limit and city boundary refer to the defined boundary or border of a city. The area within the city limit is sometimes called the city proper. The terms town limit/boundary and village limit/boundary mean the same as city limit/boundary, but apply to towns and villages. Similarly, the term corporate limit is a legal name that refers to the boundaries of municipal corporations. In some countries, the limit of a municipality may be expanded through annexation.
Interstate 5 (I-5) is an Interstate Highway on the West Coast of the United States, serving as the region's primary north–south route. It travels 277 miles (446 km) across the state of Washington, running from the Oregon state border at Vancouver, through the Puget Sound region, and to the Canadian border at Blaine. Within the Seattle metropolitan area, the freeway connects the cities of Tacoma, Seattle, and Everett.
Roosevelt is a neighborhood in north Seattle, Washington. Its main thoroughfare, originally 10th Avenue, was renamed Roosevelt Way upon Theodore Roosevelt's death in 1919. The neighborhood received the name as the result of a Community Club contest held eight years later, in 1927.
Beyond Seattle, the highway is named Bothell Way and follows the northern shore of Lake Washington. SR 522 intersects Ballinger Way (SR 104) at the central shopping center in Lake Forest Park, and is joined by the Burke-Gilman Trail, a multi-use trail running along the lakefront on a former railroad grade. Bothell Way continues east along the northern shore of Lake Washington through the city of Kenmore, located on the mouth of the Sammamish River and home to the Kenmore Air Harbor seaplane base. SR 522 travels upriver through a narrow valley that makes a sharp turn north towards Bothell. The highway turns east and continues downhill of the city's downtown business district, staying near the Sammamish River (and the Sammamish River Trail) and intersecting Bothell Way (formerly SR 527). Leaving Bothell, SR 522 then travels around the southern edge of University of Washington Bothell campus and intersects I-405, becoming a grade-separated freeway.
Lake Washington is a large freshwater lake adjacent to the city of Seattle. It is the largest lake in King County and the second largest natural lake in the state of Washington, after Lake Chelan. It borders the cities of Seattle on the west, Bellevue and Kirkland on the east, Renton on the south and Kenmore on the north, and encloses Mercer Island. The lake is fed by the Sammamish River at its north end and the Cedar River at its south.
State Route 104 (SR 104) is a 31.75-mile-long (51.10 km) state highway in the U.S. state of Washington, serving four counties: Jefferson on the Olympic Peninsula, Kitsap on the Kitsap Peninsula, and Snohomish and King in the Puget Sound region. It begins south of Discovery Bay at U.S. Route 101 (US 101) south of Discovery Bay and crosses the Hood Canal Bridge over Hood Canal to the terminus of SR 3 near Port Gamble. SR 104 continues southeast onto the Edmonds–Kingston Ferry to cross the Puget Sound and intersects SR 99 and Interstate 5 (I-5) before ending at SR 522 in Lake Forest Park. SR 104 also has a short spur route that connects the highway to SR 99 at an at-grade signal on the Snohomish–King county line.
The Burke-Gilman Trail is a rail trail in King County, Washington. The 27-mile (43 km) multi-use recreational trail is part of the King County Regional Trail System and occupies an abandoned Seattle, Lake Shore and Eastern Railway corridor.
East of I-405, SR 522 enters Woodinville and follows Little Bear Creek as it turns north away from the city's downtown, intersecting SR 202. The freeway enters Snohomish County and intersects SR 9 south of the Brightwater sewage treatment plant. It continues through several sharp turns that follow the Eastside Rail Corridor, a former railroad grade that runs northeasterly through the predominantly rural area near Grace. In Maltby, the freeway reaches an at-grade intersection with Paradise Lake Road (SR 524) and becomes a two-lane undivided highway. SR 522 travels northeast from Maltby, intersecting Echo Lake Road in a single-point urban interchange, and crosses the Snohomish River into Monroe. Within Monroe, the highway widens to a four-lane freeway with median separation and intersects Main Street in a dogbone interchange near the Monroe Correctional Complex. SR 522 cuts across suburban housing areas in Monroe, and crosses over US 2 and the BNSF Railway near the Evergreen State Fairgrounds. The highway makes a 180-degree turn south to intersect with US 2, where it terminates; the intersection also has a direct offramp for eastbound traffic from SR 522 to eastbound US 2.
Woodinville is a city in King County, Washington, United States. The population was 10,938 at the 2010 census. It is part of the Seattle metropolitan area. There is also a much larger population with Woodinville mailing addresses in adjacent unincorporated areas of King and Snohomish (Maltby) counties. Woodinville has waterfront parks on the Sammamish River, sweeping winery and brewery grounds, and densely wooded residential areas.
State Route 202 (SR 202) is a state highway in the U.S. state of Washington, serving part of the Seattle metropolitan area. It runs southeasterly for 31 miles (50 km) in the Eastside region of King County, serving the cities of Woodinville, Redmond, Fall City, and North Bend. The highway begins at SR 522 in Woodinville, intersects SR 520 in Redmond and SR 203 in Fall City, and terminates at Interstate 90 (I-90) in North Bend. The entire highway is designated as the Cascade Valleys Scenic Byway, a state scenic and recreational highway.
Snohomish County is a county located in the U.S. state of Washington. With an estimated population of 801,633 as of 2017, it is the third-most populous county in Washington, after nearby King and Pierce counties. The county seat and largest city is Everett. The county was created out of Island County on January 14, 1861 and is named for the Snohomish tribe.
The entire route of SR 522 is designated as part of the National Highway System, classifying it as important to the national economy, defense, and mobility. The State of Washington also designates the SR 522 corridor as a Highway of Statewide Significance, which includes highways that connect major communities throughout the state. The highway is the primary route for Seattle-area residents to access Stevens Pass and other parts of the Cascade Mountains. SR 522 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. In 2016, WSDOT calculated that 96,000 vehicles used SR 522 at its interchange with I-405 and 12,000 vehicles used it at its eastern terminus in Monroe, the highest and lowest counts along the highway, respectively.
Logging settlements were established on the northern shore of Lake Washington in the 1860s and 1870s, relying primarily on the water for intercity transportation.The Seattle, Lake Shore and Eastern Railway was built along the lakefront in 1888, connecting Seattle to the new towns of Bothell and Kenmore. By the 1890s, unpaved logging trails had been completed along Lake Washington and the railroad, reaching as far northeast as Maltby.
Bothell businessman and good roads advocate Gerhard Ericksen successfully lobbied the Washington State Legislature to fund the construction of a road from Seattle to Bothell as a State Aid Road and Permanent Highway in 1903. The first section of the highway, traveling 7 miles (11.3 km) from Ravenna Park in Seattle to Lake Forest Park, was completed in 1907 and was pronounced by The Seattle Times as one of the "finest pieces of road to be found anywhere in the United States". From 1911 to 1913, the state and county government paved 4 miles (6.4 km) of the highway between Lake Forest Park and Bothell with bricks. The highway, named the Ericksen Road after its promoter and Bothell Road after the city of Bothell, was opened on January 10, 1914, in an event named the "Boulevard Blowout" that featured 50 automobiles traversing the entire route between Seattle and Bothell. Most of the brick road was replaced in 1934, but a section south of downtown Bothell was preserved and remains known as Red Brick Road Park.
The Bothell Road became part of the Pacific Highway in 1915, forming part of the highway that would continue north from Bothell towards Everett. 99. On October 15, 1927, the North Trunk Highway was opened between Seattle and Everett, providing a shorter and more direct route that would later be designated as US 99 and the Pacific Highway. The Bothell Highway was renovated from Seattle to Lake Forest Park in 1939, including a widening to four lanes and straightening of some segments. Part of the highway in Seattle city limits was renamed to Lake City Way in 1967, after lobbying from Lake City businessmen.In 1922, the original road alignment through modern-day Lake City was bypassed by the new, concrete-paved Victory Way, dedicated in the memory of World War I veterans. The Pacific Highway was incorporated into a new national highway system that was approved by the American Association of State Highway Officials on November 11, 1926, and numbered as US
An unpaved extension of the Bothell Road,traveling along the Sammamish River to Woodinville, Redmond, and Fall City, was designated as a branch of the Sunset Highway (State Road 2) in 1925. The highway was later paved and incorporated into a longer branch of the Sunset Highway (re-designated as Primary State Highway 2) in 1937, running from Downtown Seattle to Fall City. The branch highway was extended to North Bend after the opening of a Sunset Highway bypass in 1941, using the former mainline road.
Another branch of the Bothell Road, from Bothell to the Stevens Pass Highway (Primary State Highway 15) in Monroe, was proposed by the state good roads association in the late 1930s. 8.2-mile-long (13.2 km) Bothell–Monroe Cutoff opened on February 10, 1965, costing $5.3 million (equivalent to $32 million in 2016 dollars) and cutting 20 minutes in travel time between Seattle and the Stevens Pass ski area.In 1941, funding for this segment was rejected by the state senate, in favor of completing the highway between Everett and Monroe first. The Bothell–Monroe Cutoff was designated as a branch of Primary State Highway 15 in 1943, with a provision that the highway would be constructed after the completion of the Everett–Monroe route. Construction of the highway was pushed back to 1961, and it was further delayed by rainy weather. The
In 1963, the Washington State Legislature commissioned a new state highway numbering system to ease confusion over similarly-numbered routes. The new system debuted in 1964, initially with State Route 522 (SR 522) assigned to the branch of Primary State Highway 2 from Seattle to North Bend, and State Route 202 (SR 202) assigned to the branch of Primary State Highway 15 from Woodinville to Monroe. By 1970, SR 522 had been moved to the Bothell–Monroe Cutoff, while SR 202 was moved to the Woodinville–North Bend highway.
The North Seattle section of the Everett–Seattle Freeway (now I-5) opened on August 28, 1963, including access to Bothell Way in the Roosevelt neighborhood. 522 was truncated to I-5, removing Roosevelt Way and Eastlake Avenue from the state highway system. A four-level freeway interchange with I-405 east of Bothell was completed in 1969, creating a connection between SR 522 and SR 202.SR
In 1968, the state highway department proposed the conversion of SR 522 into a freeway bypassing Lake City Way and Bothell Way. The plan drew heavy opposition from local residents, who feared bottlenecks and a reduction in quality of life, and was removed from regional freeway plans in 1973. Freeway plans in Monroe moved forward instead, with the completion of a two-mile-long (3.2 km) bypass to the west of downtown in 1972. SR 522 was moved from its routing on Main Street to the new freeway, which terminated at US 2 and removed a railroad grade crossing from the route.
Since the 1980s, population growth in Monroe and around the SR 522 has resulted in increased traffic congestion and safety issues, including a rise in accidents and crashes. The highway was originally designed for eventual conversion into a four-lane freeway, with leftover right-of-way and bridge approaches built in 1965. :1-1 Between 1980 and 1995, the 10.5-mile-long (16.9 km) stretch of SR 522 between Woodinville and Monroe was the site of over 1,100 accidents and 40 deaths. SR 522 has been named as one of the most dangerous highways in the United States by Reader's Digest in 1995 and Forbes in 2007, among other lists. The rock band "State Route 522" formed in 1995 by local indie rock musician Jake Snider was named for the highway.
In response to the crashes on SR 522, local residents organized a grassroots campaign ("Citizens Rallying for a Safer Highway") to petition the state for safety improvements and a highway widening. In 1993, the state legislature allocated $180 million (equivalent to $278 million in 2016 dollars) in funding towards a five-stage widening project, but the funds were transferred to the general fund at the behest of Governor Mike Lowry. The 1994 supplemental transportation budget included $2 million for engineering studies on SR 522, with construction of a four-lane freeway funded through other means. State lawmakers recommended tolling SR 522 to pay off construction bonds, but the plan was pulled back after opposition from local residents.
Existing state funds were used for the first stages of the SR 522 corridor project, including the addition of median rumble strips and improved pavement markers in 1995, which helped reduce head-on collisions. The city of Monroe replaced the eastern half of SR 522 interchange with Main Street (164th Street Southeast) with a roundabout, the first to be built in Snohomish County, in 2001. The first stage of the corridor project was completed in 2001 and widened a section between SR 9 and Paradise Lake Road (SR 524) in Maltby, at a cost of $22 million. The second stage, a new single-point urban interchange at Echo Lake Road southwest of Monroe, was completed in 2006 at a cost of $37 million. The third stage of the SR 522 corridor project was completed in 2014, widening the highway to four lanes across the Snohomish River and through Monroe to US 2, where a new eastbound offramp was also constructed separately in 2012. A new roundabout at the 164th Street Southeast interchange was also opened as part of the project, completing the dogbone interchange.
The remaining stages of the SR 522 corridor project between Maltby and the Snohomish River were planned to be funded by the Roads and Transit ballot measure in 2007, before it was rejected by local voters. The 2015 state transportation package included $10 million in design funding for an interchange at Paradise Lake Road in Maltby, to be made available in 2025, but construction of the interchange and widening of the remaining segment remains unfunded. The preliminary design options for the future diamond interchange would place the main ramps at either SR 524 or Paradise Lake Road. A coalition of politician and business leaders named "Finish522" was formed in 2018 to lobby the state government for barriers and complete grade separation in the wake of several fatal crashes in the mid-2010s. Long-term plans from WSDOT to address increasing traffic congestion in downtown Monroe include the construction of a highway bypass for US 2 to the north of the city. The project would include a northern extension of SR 522 to intersect the realigned US 2 near Kelsey Street and Chain Lake Road.
The western portion of SR 522, including Lake City Way and Bothell Way, is a major public transit corridor for the region and is served by Sound Transit Express and King County Metro bus routes. Bus lanes were added to sections of SR 522 in Seattle, Lake Forest Park, and Kenmore in the 1990s, and were expanded in the 2000s. In 2002, Sound Transit launched express Route 522, traveling between Downtown Seattle and Woodinville.
Sound Transit plans to run a Stride bus rapid transit line on SR 522 from NE 145th Street to the University of Washington Bothell campus as part of its Sound Transit 3 program, approved in 2016. The line is scheduled to begin service in 2024 and will terminate at the NE 145th Street light rail station in Shoreline. The corridor has also been proposed for forms of rail transit since the mid-20th century, including the failed Forward Thrust ballot measures of 1968 and 1970, the Seattle Monorail Project, and light rail in the Sound Transit long-range plan.
All exits are unnumbered.
|King||Seattle||0.00||0.00||Interchange; westbound exit and eastbound entrance|
|Interchange; westbound exit and eastbound entrance|
|3.21||5.17||Northeast 125th Street||Former SR 513|
|Lake Forest Park||5.85||9.41|
|Bothell||9.77||15.72||Bothell Way – Everett||Former SR 527|
|West end of freeway|
|12.90||20.76||Northeast 195th Street – Duvall||Eastbound exit and westbound entrance|
|||East end of freeway, west end of divided highway|
|||18.58||29.90||Fales Road, Echo Lake Road||Interchange|
|||West end of freeway, east end of divided highway|
|Monroe||24.14||38.85||West Main Street – Monroe|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
Interstate 82 (I-82) is an Interstate Highway in the Pacific Northwest region of the United States that travels through parts of Washington and Oregon. It runs 144 miles (232 km) from Ellensburg, Washington, to Hermiston, Oregon, passing through Yakima and the Tri-Cities. The highway also connects I-90 and I-84, which continue to Seattle and Boise, Idaho, respectively.
Interstate 705 is a short Interstate Highway that is spur route of I-5 located entirely within Tacoma, Washington, United States. I-705 serves as the connector between I-5, Downtown Tacoma, Tacoma's waterfront, North Tacoma, and the Tacoma Dome. I-705 was the last portion of the Interstate Highway System to be constructed in Washington.
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.
State Route 99 (SR 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 (79 km) 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.
State Route 523 is a short Washington state highway located on the city limits of Seattle, Shoreline and Lake Forest Park in King County. The road itself runs 2.45 miles (3.94 km) east from SR 99 past Interstate 5 (I-5) and ends at SR 522; the highway was first established in 1991, but the roadway from I-5 to 5th Avenue Northeast was once the northern section of Secondary State Highway 1J from 1937 until 1964 and later SR 513 from 1964 until 1991.
State Route 900 (SR 900) is a state highway serving part of King County, Washington, United States. It travels 16 miles (26 km) between southern Seattle and the Eastside suburbs of Renton and Issaquah, separated by the Issaquah Alps. The highway terminates to the west at an interchange with Interstate 5 (I-5) in Tukwila and to the east at I-90 in Issaquah, and also has intermediate junctions with I-405 and SR 167 in Renton.
Transportation in Seattle is largely focused on the automobile much like many other cities in western North America; however Seattle is just old enough that its layout reflects the age when railways and trolleys predominated. These older modes of transportation were made for a relatively well-defined downtown area and strong neighborhoods at the end of several former streetcar lines, now mostly bus lines.
State Route 509 (SR 509) is a 35.17-mile-long (56.60 km) state highway in the U.S. state of Washington, connecting Tacoma in Pierce County to Seattle in King County. The highway travels north from Interstate 705 (I-705) in Tacoma to SR 99 south of downtown Seattle. It serves cities along the Puget Sound and west of Seattle–Tacoma International Airport in south King County, including Federal Way, Des Moines, and Burien. SR 509 is part of the National Highway System and is a limited-access highway near the Port of Tacoma and from Burien to its northern terminus in Seattle. Prior to the 1964 highway renumbering, the highway was part of Secondary State Highway 1V (SSH 1V) from Tacoma to Des Moines and SSH 1K from Des Moines to Seattle. SR 509 was re-aligned onto the Burien Freeway in 1968 and the Port of Tacoma bypass in 1997, coinciding with the opening of its interchange with I-705 and the cable-stayed 21st Street Bridge. Various proposals since 1988 have recommended building a freeway extension of SR 509 within the city of SeaTac, connecting the Burien Freeway to I-5, that remains unbuilt.
Interstate 405 (I-405) is a north–south auxiliary Interstate Highway serving the Seattle region of Washington, United States. It bypasses Seattle east of Lake Washington, traveling through the Eastside area of King and Snohomish counties, providing an alternate route to I-5. The 30-mile (48 km) freeway serves the cities of Renton, Bellevue, Kirkland, and Bothell. I-405 terminates at I-5 in Tukwila and Lynnwood, and also intersects several major highways, including SR 167, I-90, SR 520, and SR 522.
State Route 18 (SR 18) is a 28.41-mile-long (45.72 km) state highway in the U.S. state of Washington, serving southeastern King County. The highway travels northeast, primarily as a controlled-access freeway, from an intersection with SR 99 and an interchange with Interstate 5 (I-5) in Federal Way through the cities of Auburn, Kent, Covington, and Maple Valley. SR 18 becomes a two-lane rural highway near Tiger Mountain as it approaches its eastern terminus, an interchange with I-90 near the cities of Snoqualmie and North Bend.
State Route 9 (SR 9) is a 98.17-mile (157.99 km) long state highway traversing three counties, Snohomish, Skagit and Whatcom, in the U.S. state of Washington. The highway extends north from an interchange with SR 522 in the vicinity of Woodinville north through Snohomish, Lake Stevens, Arlington, Sedro-Woolley and Nooksack to become British Columbia Highway 11 (BC 11) at the Canada–US border in Sumas. Three other roadways are briefly concurrent with the route: SR 530 in Arlington, SR 20 in Sedro-Woolley and SR 542 near Deming. A spur route in Sumas serves trucks traveling into British Columbia.
State Route 524 (SR 524) is a suburban state highway in the U.S. state of Washington, located entirely within Snohomish County. It begins at SR 104 in Edmonds and travels east past SR 99, Interstate 5 (I-5), under I-405, past SR 527 and SR 9 to end at SR 522 in Maltby. The road also has two spur routes, one connecting to SR 104 in Edmonds and another connecting to I-5 in Lynnwood.
State Route 203 (SR 203) is a state highway in the U.S. state of Washington that traverses part of King and Snohomish counties. It runs north–south through the Snoqualmie Valley, connecting the cities of Fall City, Carnation, Duvall, and Monroe. The highway terminates to the south at a roundabout with SR 202 near Fall City and to the north at a junction with U.S. Route 2 (US 2) in Monroe.
State Route 527 is a state highway in Snohomish County, Washington. It travels 9 miles (14 km) from north to south, connecting the northern Seattle suburbs of Bothell, Mill Creek, and Everett. The highway intersects Interstate 405 (I-405) at its southern terminus, SR 96 in northern Mill Creek, and I-5 at an interchange with SR 99 and SR 526 in Everett.
State Route 531 (SR 531) is a short state highway in Snohomish County, Washington, United States. It runs from west to east along 172nd Street between Wenberg County Park on Lake Goodwin to a junction with SR 9 in southern Arlington, with an intermediate interchange with Interstate 5 (I-5) in Smokey Point. The highway is the primary access point for the Arlington Municipal Airport and the Smokey Point retail corridor.
State Route 515 (SR 515) is a state highway in the U.S. state of Washington serving suburban King County. The highway travels 8 miles (12.9 km) north from SR 516 in eastern Kent to Renton, where it intersects Interstate 405 (I-405) and SR 900.
Interstate 90 (I-90) is a transcontinental Interstate Highway that runs from Seattle, Washington, to Boston, Massachusetts. It crosses Washington state from west to east, traveling 298 miles (480 km) from Seattle across the Cascade Mountains and into Eastern Washington, reaching the Idaho state line east of Spokane. I-90 intersects several major north–south highways, including I-5 in Seattle, I-82 and U.S. Route 97 (US 97) near Ellensburg, and US 395 and US 2 in Spokane.
U.S. Route 2 (US 2) is a component of the United States Numbered Highway System that connects the city of Everett in the U.S. state of Washington to the Upper Peninsula of Michigan, with a separate segment that runs from Rouses Point, New York, to Houlton, Maine. Within Washington, the highway travels on a 326.36-mile-long (525.23 km) route that connects the western and eastern regions of the state as a part of the state highway system and the National Highway System. US 2 forms parts of two National Scenic Byways, the Stevens Pass Greenway from Monroe to Cashmere and the Coulee Corridor Scenic Byway near Coulee City, and an All-American Road named the International Selkirk Loop within Newport.