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Conechella Strikes Puget Sound, Major Seattle-Area Highways Face Closures and Delays August 22-25

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Published on August 23, 2025
Conechella Strikes Puget Sound, Major Seattle-Area Highways Face Closures and Delays August 22-25Source: Unsplash/Zac Gudakov

Brace yourselves, Puget Sound drivers. Starting yesterday night, through Monday morning, you'll be navigating through a maze of roadwork and highway closures. The Washington State Department of Transportation (WSDOT) has dubbed this massive undertaking 'Conechella,' as crews will be out in full force across multiple highways engaging in construction, preservation, and maintenance efforts.

The Kirkland to Renton stretch of Interstate 405 is hitting a major tempo change with lane and ramp closures that include the southbound on-ramp at Northeast 85th Street being shut down entirely, but that's not all, the highway will also be reduced by one lane during daytime hours, and parts of it will be closed entirely during the witching hours of 11:30 p.m. to 5 a.m. Meanwhile, for I-5 enthusiasts, northbound lanes in Tukwila will narrow down to practically a single-file line for signal maintenance, and if you're cruising through Fife, the paving party means I-5 narrows down to one lonely lane overnight.

Over at SR 99, the concert of closures continues with the southbound Aurora Bridge losing two lanes in the early hours for bridge inspections and the SR 99 tunnel taking an overnight break from the usual traffic riffs. The Washington State Department of Transportation encourages travelers to plan ahead, and as reported on their website, "travelers are encouraged to check travel times on the Travel Center map, WSDOT mobile app and following the agency’s social media accounts." And while any music festival might bring a joyous uproar, 'Conechella' is one event commuters might not be so eager to attend.

Reasons for this tightly packed schedule of closures are firmly rooted in practicality, with the Washington State Department of Transportation stating through its site that there's no "good weekend" for this sort of thing — plus, Seattle's short summer weather window is like a VIP pass that expires too soon. The work is essential to keep the region's infrastructure in tune, and unforeseen encores in the form of additional closures may happen if the weather doesn't play along with the planned performances. For those who might plan on dodging the traffic, taking transit, carpooling, or setting sail on the state ferries could be the ticket to avoiding the backstage chaos.

This isn't the full lineup of disruptions, though, so attendees of 'Conechella' should stay on top of travel updates and consider flipping their usual trip routine as Washington State Department of Transportation puts it. With multiple acts performing on the concrete stage, this weekend could very well turn the greater Puget Sound into a sprawling backstage of detours and delays, so chart your course accordingly, and perhaps leave a little early for your headline destination.

Seattle-Transportation & Infrastructure