Weekend Closure of SR 51 to Snarl Phoenix Airport Traffic

ADOT shutting down southbound lanes for pavement repairs, forcing drivers to find alternate routes to Sky Harbor.

Apr. 10, 2026 at 10:05pm

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A highly stylized, geometric illustration depicting the sweeping curves and towering scale of a major highway interchange, conveying the sense of grandeur and complexity of the transportation infrastructure in a major metropolitan area.The impending closure of a key Phoenix freeway will test the resilience of the region's transportation network and challenge travelers to find creative ways to navigate the congestion.Phoenix Today

The Arizona Department of Transportation is closing southbound State Route 51 from 9 p.m. Friday to 5 a.m. Monday, cutting off a key route into downtown Phoenix and Phoenix Sky Harbor International Airport. Drivers are urged to use southbound I-17 as the main alternate route and brace for heavy traffic near the closure, which will also impact several nearby on-ramps.

Why it matters

With SR 51 feeding directly into the I-10 'mini-stack' near Sky Harbor, the closure could turn routine airport trips into slow crawls, especially with ongoing construction at the airport. Travelers are advised to build in extra time and consider park-and-ride or PHX Sky Train options to avoid terminal traffic.

The details

ADOT is closing southbound SR 51 between Indian School Road and I-10 so crews can remove the top layer of asphalt as part of a pavement improvement project. The southbound SR 51 on-ramps at Glendale Avenue, Bethany Home Road and Highland Avenue will also be closed, along with some nearby ramps on I-17 and Loop 101. An eastbound I-10 closure at Perryville Road on Saturday could send even more drivers to alternate routes.

  • The closure will be in effect from 9 p.m. Friday to 5 a.m. Monday.
  • Crews will be working on the SR 51 pavement rehabilitation project, which started in March and spans about 9.5 miles from I-10 to Shea Boulevard.

The players

Arizona Department of Transportation

The state agency responsible for managing Arizona's transportation infrastructure, including the closure and rehabilitation work on SR 51.

Phoenix Sky Harbor International Airport

The major airport serving the Phoenix metropolitan area, which is located near the SR 51 closure and will be impacted by the increased traffic congestion.

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What’s next

For up-to-the-minute conditions, closures and detour details, check AZ 511 and sign up for alerts so you can pivot to the quickest route before you hit the freeway.

The takeaway

This weekend's SR 51 closure highlights the ongoing challenges of infrastructure maintenance and construction in a major metropolitan area, especially when it impacts critical transportation hubs like Sky Harbor Airport. Travelers will need to plan ahead and explore alternative routes and modes of transportation to avoid the anticipated traffic snarls.