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

Southbound I-17 closure planned this weekend between Jomax and Deer Valley roads

Drivers who use Interstate 17 in north Phoenix should plan for heavy travel delays during the southbound freeway closure this weekend for paving work.

Closures and restrictions through Sept. 25

  • Southbound I-17 will be closed from Jomax to Deer Valley roads from 2 a.m. Saturday (Sept. 19) to 3 a.m.  Monday (Sept. 21) for pavement improvements.
    • Detour: Drivers can use southbound 19th Avenue between Jomax and Deer Valley roads or consider exiting in advance of the closure and using alternate routes via westbound State Route 74, eastbound Carefree Highway or southbound Loop 303.

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. 21 through the morning of Friday, Sept. 25.
  • Northbound I-17 will be restricted to one lane nightly on Tuesday (Sept. 22) through Thursday (Sept. 24) nights.
  • Southbound I-17 will be restricted to one lane nightly on Monday (Sept. 21) through Thursday (Sept. 24) nights.

 Ramp closures

  • The southbound I-17 on-ramp at Happy Valley Road will be closed from 9 p.m. Monday (Sept. 21) to 1 a.m. Tuesday (Sept. 22).
  • The southbound I-17 off-ramp at Pinnacle Peak Road will be closed from 11 p.m. Monday (Sept. 21) to 3 a.m. Tuesday (Sept. 22).
  • The southbound I-17 on-ramp at Pinnacle Peak will be closed from 3 a.m. to 5 a.m. Tuesday (Sept. 22).

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

Closures and restrictions through Sept. 20

  • Southbound I-17 will be closed from Jomax to Deer Valley roads from 9 p.m. Friday (Sept. 11) to 9 p.m. Saturday (Sept. 12) for pavement improvements.
    • Detour: Drivers can use southbound 19th Avenue between Jomax and Deer Valley roads.  
  • Northbound I-17 will be closed from Deer Valley to Jomax roads from 9 p.m. Saturday (Sept. 12) to 9 p.m. Sunday (Sept. 13) for pavement improvements.
    • Detour: Drivers can use northbound 19th Avenue between Deer Valley and Jomax roads.

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 Sunday, Sept. 13 through morning of Friday, Sept. 18.

  • Northbound I-17 will be restricted to one lane nightly on Sunday (Sept. 13) through Wednesday (Sept. 16) nights.
  • Southbound I-17 will be restricted to one lane nightly on Friday (Sept.11) through Thursday (Sept. 17) nights.

Happy Valley Road at Interstate 17

  • The southbound I-17 on-ramp at Happy Valley Road will be closed overnight from 9 p.m. to 5 a.m. on Monday, (Sept.  14) and Wednesday (Sept. 16).
  • The northbound I-17 off-ramp at Happy Valley Road will be closed nightly from 9 p.m. to 5 a.m. Tuesday (Sept. 15) through Thursday (Sept. 17) nights.

Pinnacle Peak Road at Interstate 17

  • Westbound Pinnacle Peak Road will be closed from 23rd Avenue to 29th Avenue from 9 p.m. on Tuesday, Sept. 15 until 5 a.m. Wednesday, Sept. 16.

Ramp closures and restrictions:

Through mid-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.

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

Stay Informed!

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