Expect weeks of delays on I-40 in Flagstaff as crews complete 10-mile paving project

PHOENIX – Drivers on a segment of Interstate 40 in northern Arizona should expect delays for several weeks as crews complete a pavement project, transportation officials said.

Alternating lane restrictions on I-40 between I-17 and Walnut Canyon Road in Flagstaff will start Thursday and last through mid-August, according to the Arizona Department of Transportation.

Motorists traveling over the 10-mile stretch should plan for delays of up to 30 minutes or more between 6 a.m. and 6 p.m. weekdays through Aug. 19, ADOT said.

The configuration of the restrictions will change as the work progresses, with sections of roadway limited to one way in each direction and the speed limit reduced to 45 mph in work zones.

The paving is the final phase of a $16.4 million improvement project, which started in spring 2021.

The project included milling and replacing the pavement along the freeway and on the ramps at four interchanges, repairing bridge decks, and replacing barriers and guardrails as needed.

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