Traffic Alerts - I-17 TI Reconstruction - Happy Valley and Pinnacle Peak

Plan for northbound I-17 closure this weekend between Deer Valley and Jomax roads

Drivers who use Interstate 17 in north Phoenix should plan for travel delays during northbound freeway closures this weekend for paving work.

Closures and restrictions through Oct. 2

  • Northbound I-17 will be closed from Deer Valley to Jomax roads from 2 a.m. Saturday (Sept. 26) to 3 a.m.  Monday (Sept. 28) for pavement improvements. Happy Valley and Pinnacle Peak Road will remain open in both directions at I-17. 
    • Detour: Drivers can use northbound 19th Avenue between Deer Valley and Jomax roads.
  • The northbound frontage road between Charlotte Drive and Happy Valley Road will be closed from Sunday, Sept. 27 through late October.
    • Detour: Traffic may use Charlotte Drive to Farmer’s Way to access Happy Valley Towne Center or continue to 23rd Avenue to access Happy Valley Road.

Interstate 17 from Pinnacle Peak to Happy Valley roads

North-and southbound I-17 will have overnight lane restrictions from 9 p.m. to 5 a.m. beginning Monday, Sept. 28 through the morning of Friday, Oct. 2.

  • Northbound I-17 will be restricted to one lane from 9 p.m. on Monday (Sept. 28) until 5 a.m. Tuesday (Sept. 29).

 Ramp closures

  • The northbound I-17 off-ramp at Pinnacle Peak Road will be closed from 9 p.m. to 11 p.m. Monday (Sept. 28).
  • The northbound I-17 on-ramp at Pinnacle Peak Road will be closed from 11 p.m. Monday (Sept. 28) to 3 a.m. Tuesday (Sept. 29).
  • The northbound I-17 off-ramp at Happy Valley Road will be closed from 3 a.m. to 5 a.m. Tuesday (Sept. 29).
  • The southbound I-17 on-ramp at Pinnacle Peak will be closed from 9 p.m. Tuesday (Sept. 29) to 5 a.m. Wednesday (Sept. 30).

Happy Valley Road

Happy Valley Road west of I-17 will be restricted to one lane with a flagging operation from 12 a.m. to 1 a.m. Wednesday (Sept. 30).

Through October 2020

  • The northbound I-17 on-ramp and the southbound I-17 off-ramp at Happy Valley Road is closed.  
  • The southbound frontage road is closed between Jomax and Happy Valley roads, and the northbound frontage road is closed between Happy Valley Road and Agave. 
    • Detour: Traffic can use the Jomax Road interchange for I-17 access via 19th Avenue.  

Countdown to Happy Valley Road new interchange opening

ADOT anticipates an October opening of the new Diverging Diamond Interchange (DDI) at Happy Valley Road. View a simulation of how traffic will flow through the new interchange.

I-17 Happy Valley and Pinnacle Peak Construction Flyer

Drivers should slow down in the construction zone and use caution while restrictions are in place.

Stay Informed!

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By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.

Online: Submit a question or comment through the ADOT website. Visit azdot.gov/Contact and then select Projects from the dropdown menu.

For real-time highway conditions statewide, follow ADOT on Twitter  (@ArizonaDOT), visit az511.gov or call 511, except while driving.