Title: Interstate 405 (Washington) - Wikipedia
Headings: Interstate 405 (Washington)
Interstate 405 (Washington)
Contents
Route description
Tukwila to Bellevue
Bellevue to Lynnwood
History
Corridor program
Transit service
Exit list
References
External links

Content: Average daily traffic volumes on I-405 in 2016 ranged from a minimum of 76,000 at its southern terminus in Tukwila to 209,000 in Downtown Bellevue. Approximately 86 percent of peak-direction lane miles on I-405 are rated as "routinely congested" by WSDOT and the highway accounted for over 30 percent of delays on the Seattle area's urban freeways from 2013 to 2017. The freeway has a system of high-occupancy vehicle lanes (HOV lanes) from Tukwila to Downtown Bellevue that become high-occupancy toll lanes (HOT lanes) from Bellevue to Lynnwood. The HOT lanes are controlled through a series of designated access points and direct ramps located along I-405. Tolls are collected electronically through Good to Go transponders by overhead sensors or via license plate cameras for mail billing with a surcharge. The variable weekday toll rates are set according to traffic congestion, ranging from $0.75 to a maximum of $10, while weekends and federal holidays are toll-free. HOT lane tolls are waived for high-occupancy vehicles with three or more passengers during peak periods and two or more passengers during the mid-day when using the "FlexPass" that can toggle between tolled and HOV modes. Tukwila to Bellevue
I-405 begins as a continuation of State Route 518 (SR 518) at a multi-level junction with I-5 in Tukwila, northeast of Seattle–Tacoma International Airport. The eight-lane freeway gains a set of HOV lanes, directly connected to I-5, and travels around the north side of the Southcenter Mall, at the center of Tukwila's retail district. The mall is served by a set of auxiliary ramps around the periphery of the I-5/SR 518 interchange.