Southbound I-17 Closed in Northern Arizona Due to Weather, Crash

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The southbound lanes of Interstate 17 south of Munds Park, Arizona have been closed due to winter weather conditions and a crash, according to the Arizona Department of Transportation. ADOT is working to clear the roads with snowplows operating around-the-clock, and is advising drivers to expect delays and to leave ample space between their vehicles and the snowplows, as well as to avoid passing the plows.

Why it matters

Interstate 17 is a major highway connecting Phoenix to northern Arizona, so this closure will significantly impact travel in the region during the winter weather event. Ensuring drivers give snowplows the space they need to operate safely is critical for clearing the roads and restoring normal traffic flow.

The details

ADOT has closed the southbound lanes of I-17 south of the Munds Park area due to the combination of winter weather conditions and a reported crash. Snowplows are working continuously to clear the affected areas, but ADOT is warning drivers to expect delays with no estimated time for the highway to reopen. Drivers are advised to leave at least four car-lengths of space between their vehicle and the snowplows, and to never attempt to pass the plows while they are actively clearing the roads.

• The southbound lanes of I-17 were closed on February 18, 2026.

What’s next

ADOT has not provided an estimated time for when the southbound lanes of I-17 will reopen, as the agency continues its around-the-clock snowplow operations to clear the highway.