Traffic reminder: Pinnacle Peak Road is closed east of Interstate 17 through mid-March

PHOENIX –   The Arizona Department of Transportation (ADOT) wants to remind drivers that they should expect delays and allow extra travel time if commuting in the area near Interstate 17 and Pinnacle Peak Road.

Pinnacle Peak Road just east of I-17 is closed in both directions while construction crews replace a large drainage culvert next to the highway. The closure is scheduled to be in place continuously until the early morning hours of Thursday, March 14.

Work to remove the culvert is occurring 24 hours a day, seven days a week, so ADOT advises drivers to plan ahead for heavy traffic and allow for plenty of extra travel time.

ADOT is maintaining access to I-17 and the frontage roads, however, many drivers in the area must use alternate routes until Pinnacle Peak Road re-opens next month.

Businesses and schools located south of Pinnacle Peak Road between I-17 and 23rd Avenue are accessible from 19th Avenue. ADOT advises drivers to watch for law enforcement officers directing and monitoring traffic at Pinnacle Peak Road and 23rd Avenue this week as drivers get accustomed to the temporary detour route.

Removal of the culvert is occurring in conjunction with the $50 million project to reconstruct the I-17 traffic interchanges at Pinnacle Peak and Happy Valley roads.

Schedules are subject to change based on weather and other unforeseen factors. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or go to and select Projects from the drop-down menu. For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except when driving.