Interstate 405 South - Lynnwood to Bellevue

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Interstate 405
Interstate 405 South
The freeway along SR 525 south ends where Interstate 405 begins.
The freeway along SR 525 south ends where Interstate 405 begins.
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Exit 26 to SR 527 is the first of three exits to the city of Bothell from I-405 south.
Exit 26 to SR 527 is the first of three exits to the city of Bothell from I-405 south.
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SR 527 travels nine miles north to Trashers Corner, Mill Creek, and I-5/SR 526 at Exit 189 in Everett.
SR 527 travels nine miles north to Trashers Corner, Mill Creek, and I-5/SR 526 at Exit 189 in Everett.
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The lone Snohomish County exit from Interstate 405 south is the six-ramp parclo interchange with SR 527 (Bothell Way) north and Bothell Everett Highway south.
The lone Snohomish County exit from Interstate 405 south is the six-ramp parclo interchange with SR 527 (Bothell Way) north and Bothell Everett Highway south.
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Distance sign posted eight miles north of Kirkland on Interstate 405. Bellevue and Renton round out the regular control cities for the freeway loop.
Distance sign posted eight miles north of Kirkland on Interstate 405. Bellevue and Renton round out the regular control cities for the freeway loop.
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A cloverstack interchange connects I-405 with SR 522 at Exits 23 B/A in one mile. SR 522 joins Bothell with Woodinville and Maltby in Snohomish County as a limited access route.
A cloverstack interchange connects I-405 with SR 522 at Exits 23 B/A in one mile. SR 522 joins Bothell with Woodinville and Maltby in Snohomish County as a limited access route.
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Interstate 405 crosses the King County line south ahead of Exit 24.
Interstate 405 crosses the King County line south ahead of Exit 24.
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Meeting the I-405 next is NE 195th Street east of Ross Road and Beardslee Boulevard. Beardslee Boulevard angles southwest from Exit 24 to the Bothell city center.
Meeting the I-405 next is NE 195th Street east of Ross Road and Beardslee Boulevard. Beardslee Boulevard angles southwest from Exit 24 to the Bothell city center.
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Exit 23 A loops onto SR 522 east to Woodinville. SR 522 ends in Monroe at U.S. 2. Connections with U.S. 2 lead travelers across Stevens Pass in the Cascade Mountains to Wenatchee.
Exit 23 A loops onto SR 522 east to Woodinville. SR 522 ends in Monroe at U.S. 2. Connections with U.S. 2 lead travelers across Stevens Pass in the Cascade Mountains to Wenatchee.
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SR 522 travels west from Exit 23 B to the University of Washington Bothell, Downtown Bothell, Kenmore, Lake Forest Park and Interstate 5 in Seattle.
SR 522 travels west from Exit 23 B to the University of Washington Bothell, Downtown Bothell, Kenmore, Lake Forest Park and Interstate 5 in Seattle.
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SR 202 begins at the exchange joining SR 522 and 131st Avenue NE iin Woodinville nearby. The state route meanders east along Woodinville Duvall Road from the city center to SR 203 at Duvall.
SR 202 begins at the exchange joining SR 522 and 131st Avenue NE iin Woodinville nearby. The state route meanders east along Woodinville Duvall Road from the city center to SR 203 at Duvall.
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Leaving the Sammamish River Valley, I-405 advances south to the diamond interchange (Exit 22) with NE 160th Street near Kingsgate.
Leaving the Sammamish River Valley, I-405 advances south to the diamond interchange (Exit 22) with NE 160th Street near Kingsgate.
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NE 160th Street leads southwest from Exit 22 as Juanita Woodinville Way NE to 100th Avenue NE at Kirkland.
NE 160th Street leads southwest from Exit 22 as Juanita Woodinville Way NE to 100th Avenue NE at Kirkland.
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A six-ramp parclo interchange at Exit 20 joins I-405 south with NE 124th Street in the Totem Lake Mall area of Kirkland.
A six-ramp parclo interchange at Exit 20 joins I-405 south with NE 124th Street in the Totem Lake Mall area of Kirkland.
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2023/24 road work added a half dogbone interchange (Exit 21) at NE 132nd Street to provide congestion relief for Exit 20 to NE 124th Street.
2023/24 road work added a half dogbone interchange (Exit 21) at NE 132nd Street to provide congestion relief for Exit 20 to NE 124th Street.
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The Express Lane exit for NE 128th Street leaves Interstate 405 south ahead of the NE 132nd Street under crossing. This ramp was constructed in 2006.
The Express Lane exit for NE 128th Street leaves Interstate 405 south ahead of the NE 132nd Street under crossing. This ramp was constructed in 2006.
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Exit 20 for NE 124th Street departs Interstate 405 south at NE 128th Street. NE 124th Street heads west to Juanita and east to Sammamish Valley.
Exit 20 for NE 124th Street departs Interstate 405 south at NE 128th Street. NE 124th Street heads west to Juanita and east to Sammamish Valley.
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Originally collector distributor roadways separated from I-405 at Exit 18 for the cloverleaf interchange with NE 85th Street. These permanently closed in 2024.
Originally collector distributor roadways separated from I-405 at Exit 18 for the cloverleaf interchange with NE 85th Street. These permanently closed in 2024.
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The I-405/Northeast 85th Street Interchange and Inline BRT Station Project reconstructs the cloverleaf at Exit 18 into a three-level dogbone interchange. The middle level accommodates transit, pedestrians and cyclists. Work on the $234.4 million project started in December 2022 and runs through January 2027 (WSDOT, 2025).
The I-405/Northeast 85th Street Interchange and Inline BRT Station Project reconstructs the cloverleaf at Exit 18 into a three-level dogbone interchange. The middle level accommodates transit, pedestrians and cyclists. Work on the $234.4 million project started in December 2022 and runs through January 2027 (WSDOT, 2025).
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NE 85th Street was part of SR 908 between SR 202 and the Redmond city center until June 2010 (AARoads Wiki, 2023).
NE 85th Street was part of SR 908 between SR 202 and the Redmond city center until June 2010 (AARoads Wiki, 2023).
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NE 85th Street west of I-405 was also once part of SR 908. The western section was decommissioned in 1992 (AARoads Wiki, 2023). SR 908 followed Central Way west from NE 85th Street to Lake Street and Lake Washington Boulevard NE south.
NE 85th Street west of I-405 was also once part of SR 908. The western section was decommissioned in 1992 (AARoads Wiki, 2023). SR 908 followed Central Way west from NE 85th Street to Lake Street and Lake Washington Boulevard NE south.
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The former loop ramp from I-405 south to NE 85th Street east. NE 85th Street runs east to Rose Hill in east Kirkland, becoming Redmond Way at the city line to SR 202.
The former loop ramp from I-405 south to NE 85th Street east. NE 85th Street runs east to Rose Hill in east Kirkland, becoming Redmond Way at the city line to SR 202.
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A folded diamond interchange (Exit 17) follows between Interstate 405 and NE 70th Place in Kirkland. NE 70th Place/ NE 70th Street lead east to Snyders Corner at the Redmond city line. Westward, NE 72nd Place / NE 68th Street continue the street to Feriton and Houghton.
A folded diamond interchange (Exit 17) follows between Interstate 405 and NE 70th Place in Kirkland. NE 70th Place/ NE 70th Street lead east to Snyders Corner at the Redmond city line. Westward, NE 72nd Place / NE 68th Street continue the street to Feriton and Houghton.
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Southbound I-405 enters Bellevue ahead of Exit 14 to SR 520. The freeway on SR 520 is a major commuting corridor between Redmond and Seattle.
Southbound I-405 enters Bellevue ahead of Exit 14 to SR 520. The freeway on SR 520 is a major commuting corridor between Redmond and Seattle.
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A cloverstack interchange (Exit 14) joins I-405/SR 520 in a valley between the Ashwood and Northrup neighborhoods.
A cloverstack interchange (Exit 14) joins I-405/SR 520 in a valley between the Ashwood and Northrup neighborhoods.
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SR 520 stretches 12.82 miles between I-5 in Seattle and SR 202 in Redmond.
SR 520 stretches 12.82 miles between I-5 in Seattle and SR 202 in Redmond.
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SR 520 previously crossed the Evergreen Point Floating Bridge, an outdated and narrow span over Lake Washington opened in 1963. Road work along SR 520 widened the freeway to the east and completely rebuilt the corridor westward with a new floating bridge and several cut and cover tunnels.
SR 520 previously crossed the Evergreen Point Floating Bridge, an outdated and narrow span over Lake Washington opened in 1963. Road work along SR 520 widened the freeway to the east and completely rebuilt the corridor westward with a new floating bridge and several cut and cover tunnels.
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Vehicles carrying hazardous materials are prohibited from SR 520 west due to the lids at Clyde Hill, Hunts Point, Medina and Seattle.
Vehicles carrying hazardous materials are prohibited from SR 520 west due to the lids at Clyde Hill, Hunts Point, Medina and Seattle.
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Two lanes leave Interstate 405 south to SR 520 at Exit 14 in a half mile. Yarrow Point and Clyde Hill lie to the west. The Redmond city center is 7.5 miles to the northeast.
Two lanes leave Interstate 405 south to SR 520 at Exit 14 in a half mile. Yarrow Point and Clyde Hill lie to the west. The Redmond city center is 7.5 miles to the northeast.
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Tolls were implented along SR 520 west across Lake Washington in 2011. Toll collection helped cover the costs with building the new six lane crossing over the lake and overall corridor improvements between I-405 and I-5.
Tolls were implented along SR 520 west across Lake Washington in 2011. Toll collection helped cover the costs with building the new six lane crossing over the lake and overall corridor improvements between I-405 and I-5.
07/19/23
Interstate 405 partitions with the ramps to SR 520 ahead of the Downtown Bellevue exits for NE 8th Street and NE 4th Street.
Interstate 405 partitions with the ramps to SR 520 ahead of the Downtown Bellevue exits for NE 8th Street and NE 4th Street.
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References:

AARoads Wiki. (2023, September 8). Washington State Route 908. AARoads Wiki. Retrieved September 18, 2025, from https://wiki.aaroads.com/wiki/Washington_State_Route_908

Washington State Department of Transportation (WSDOT). (2025, September 12). I-405/Northeast 85th Street Interchange and Inline BRT Station Project. WSDOT. https://wsdot.wa.gov/construction-planning/search-projects/i-405-northeast-85th-street-interchange-and-inline-brt-station-project

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Connect with:

Interstate 5Interstate 5
Washington State Route 520State Route 520
Washington State Route 525State Route 525

Page Updated Thursday September 18, 2025.