I-17

A short section of Pinnacle Peak Road is open as planned east of the Interstate 17 interchange in north Phoenix following work that began last month to replace a concrete drainage culvert under the roadway.

Learn more about work to replace a box culvert at I-17 and Pinnacle Peak Road and why it's critical to a project to create a modern diamond interchange there.

PHOENIX – A short section of Pinnacle Peak Road east of the Interstate 17 interchange in north Phoenix will be closed for just over three weeks starting early Tuesday, Feb. 19, while crews remove and replace a concrete drainage culvert. The road is scheduled to reopen March 14.

This year will be filled with highway system improvements for northern Arizona travelers, including the start of the latest Arizona Department of Transportation project expanding US 93 to four-lane divided highway between Wickenburg and Interstate 40.

Do you know what to do when there's a wrong-way driver? Read further to find out.

The enduring mystery of the Mystery Tree has returned to I-17 near Sunset Point.

Our wrong-way vehicle alert system being tested along a stretch of I-17 in Phoenix has earned a special award for innovation.

Sunset Point is ADOT's busiest rest area and is known to drivers on Interstate 17 for its grand vistas. But it also is home to another unique feature - a sundial memorial to fallen ADOT employees.

With Arizona Department of Transportation projects improving Interstate 17 and Interstate 40 around Flagstaff approaching a winter hiatus, the area now has upgraded bridge decks, two new bridges and 20 total miles of rebuilt roadway. There are also many more miles of fresh pavement, with additional paving to come when warmer temperatures return.

The Arizona Department of Transportation’s original plan for improving the Interstate 17 bridges at Willard Springs Road south of Flagstaff called for replacing the decks in both directions over two summers, ending well into 2019. The project that’s underway, however, is replacing the bridges in their entirety by the end of November – at no additional cost.

As the Arizona Department of Transportation advances projects that will add capacity to Interstate 17 north of the Phoenix area, drivers can help improve safety and reduce delays today by avoiding speeding, aggressive driving, distraction from things like cellphones and other behaviors that lead to crashes.

An Arizona Department of Transportation project that’s rebuilding 5 miles of Interstate 40 near Williams has been ranked in the nation’s top 10 by Roads & Bridges, a construction industry publication.

It took a century to turn the old, sleepy Black Canyon stagecoach route into the super highway we know as Interstate 17.

Phoenix-area drivers are used to seeing freeway entrance-ramp meters with alternating green and red traffic lights during weekday rush hours. But some of the red lights in Interstate 17 ramp meters also play a role as part of the pilot wrong-way vehicle detection system being tested by the Arizona Department of Transportation.

This month's Driving Safety Home focuses on an innovative option to improve Interstate 17 north of Phoenix.

As we reported this week, results from the I-17 wrong-way detection and warning system have been promising.

Interstate 17 will close overnights at the I-17/I-40 interchange in Flagstaff for the next two weeks while crews set up support structures in order to replace the I-40 bridge decks.

ADOT is replacing pavement on northbound Interstate 17 in the high country.

The transition ramp from Interstate 17 northbound to Interstate 40 westbound is closed for construction until the end of the year.

An Arizona Department of Transportation project scheduled to start Monday, April 30, will deliver a smoother driving surface along 28 miles of northbound Interstate 17 leading to Flagstaff, a stretch battered by repeated cycles of freeze and thaw during the winter.