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State Route 531 (SR 531) is a short Washington state highway in Snohomish County. It extends east , from Wenberg County Park in the community of Lake Goodwin, to SR 9 in southeast Arlington. SR 531 intersects Interstate 5 (I-5), and passes the Arlington Airport. The route connects I-5 to SR 9, Smokey Point, and Wenberg County Park. The Washington State Legislature approved SR 531's current route in 1991. Since then, construction projects, arranged by the Washington State Department of Transportation (WSDOT), have turned this small road into an arterial street. Even though the Washington State Legislature and WSDOT approved SR 531 in 1991, they erected no signs until April 1, 1992, when the law creating the road took effect. The road now used by SR 531 has existed as a separate route since at least 1911. A map dating from 1911 shows that 172nd Street, then known simply as Lakewood Road and Edgecomb Road, extended east from its current intersection with SR 9 to the banks of the South Fork Stillaguamish River. ==Route description== State Route 531 runs about , from Wenberg County Park to State Route 9 south of Arlington. The route links the communities of Lake Goodwin, North Lakewood (also known as Lakewood), Smokey Point, and Edgecomb. It also passes four schools in the Lakewood School District, as well as Weston High School in the Arlington School District. The road intersects four major arteries: Forty-Five Road, Interstate 5, Smokey Point Boulevard (formerly known as U.S. Route 99), and 67th Avenue, before ending at SR 9. WSDOT found that, based on average annual daily traffic (AADT) data, about 35,000 motorists utilize the road daily at the I-5 interchange. Starting at Wenberg County Park, the route runs north along East Lake Goodwin Road until it intersects Lakewood Road. From there, SR 531 travels east along Lakewood Road around Lake Ki before reaching Forty-Five Road. Here, Lakewood Road becomes the main artery of North Lakewood and Smokey Point, 172nd Street. Continuing east, SR 531 intersects 11th Avenue. After intersecting 11th Avenue, SR 531 becomes the northern boundary of the Lakewood High School campus. SR 531 continues east from 11th Avenue to 16th Drive, shortly after entering Marysville city limits. Soon thereafter, the road intersects 19th Drive, which connects the southeastern section of North Lakewood with SR 531. Continuing east across a double track, the highway intersects 27th Avenue, which connects the road with Lakewood Crossing, a shopping center in Lakewood. SR 531 then continues further east to the interchange with I-5. After leaving the interchange with I-5, along with North Lakewood and Marysville city limits,〔 SR 531 continues east to Smokey Point Boulevard (formerly U.S. Route 99) in Smokey Point. The road then maintains straight east, passing Weston High School and Arlington Municipal Airport before intersecting 67th Avenue. From 67th Avenue, SR 531 travels east to a suburban community of Edgecomb. The road curves northeast and then southeast while on a hill. SR 531 travels east past the Arlington Gun Range and Gleneagle, a large housing area, before ending at an intersection with SR 9. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Washington State Route 531」の詳細全文を読む スポンサード リンク
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