Weekend I-405 closures will affect Bellevue-area travel Aug. 7-10
Northbound I-405 and associated ramps near Bellevue are identified for a major-construction closure beginning Friday, Aug. 7, and continuing into the early hours of Monday, Aug. 10, according to the approved construction schedule record.
The weekend work is expected to affect Bellevue-area travel by creating detours and delays for commuters and other people using the regional highway network. The closure is transportation construction activity, not an action by Bellevue city government.
What the schedule identifies
The schedule covers Aug. 7 through Aug. 10, 2026. It specifically identifies northbound I-405 and associated ramps in Bellevue as part of the closure period.
The work is set to begin Friday and extend through the weekend, with the closure running into Monday morning. That timing places the construction period across the weekend travel window and into the start of the workweek.
The available record does not establish that every northbound I-405 lane will be closed. It identifies northbound I-405 and ramps, but the exact ramp-by-ramp limits were not available in the approved material.
Why it matters for Bellevue travel
I-405 is part of the regional highway network used by Bellevue commuters and by travelers moving through the area. A closure involving northbound lanes and associated ramps can require people to change routes during the construction period.
The approved handoff expects detours and travel delays, but it does not provide a traffic-delay estimate. It also does not provide specific detour directions. Those details matter because the effect on a trip will depend on which ramps are included and how long each portion of the work remains closed.
For Bellevue residents, workers and visitors, the practical consequence is that northbound travel plans may be affected from Friday evening through the weekend and into Monday morning. The schedule does not identify a separate closure affecting all Bellevue streets or city transportation facilities.
Details still to be confirmed
The accessible record used for this report did not include an official Washington State Department of Transportation notice with the exact closure boundaries or reopening time. It also did not confirm the precise detour routes or estimate the expected delays.
Those limits are important distinctions. The available information supports reporting that northbound I-405 and associated ramps near Bellevue are included in the Aug. 7-10 construction schedule. It does not support publishing an exact ramp list, a precise reopening hour or a claim that all northbound lanes will be shut.
The City of Bellevue’s official calendar confirms the city context, including a regular City Council meeting on Aug. 4, 2026, but that municipal record does not establish the highway closure details. The closure is therefore best understood as a regional construction event affecting Bellevue travel, rather than a Bellevue council decision or city-government project.
Additional transportation information is needed to establish the final ramp-by-ramp limits, detour directions and reopening time before those details can be reported as confirmed.
Sources
- Heads up: Major construction projects across the Puget Sound region (Aug. 7-10), Reddit user post citing regional construction information
- City Council Regular Meeting, August 4, 2026, City of Bellevue, Washington
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