Traffic Alerts - I-17 Frontage Road Drainage Improvement

Weekend closures planned at I-17 and Peoria Avenue interchange beginning tonight

I-17 Frontage Rd Construction Update

The Arizona Department of Transportation advises drivers who use Peoria Avenue at Interstate 17 to plan for the final weekend closure at this interchange while crews construct drainage improvements.

ADOT urges you to slow down and use caution around construction personnel and equipment while the following restrictions are in place:

New Restrictions and Closures

Ramp Closures

  • The north- and southbound I-17 off-ramps and the northbound I-17 on-ramp at Peoria Avenue will be closed from 9 p.m. on Friday, Sept 25 until 5 a.m. Monday, Sept. 28.
    • Detour: Drivers can enter and exit I-17 at Dunlap Avenue or Cactus Road.
  • The northbound I-17 off ramp will be closed nightly from 9 p.m. until 5 a.m. beginning Monday, Sept. 14 through Friday, Oct. 2.
  • The southbound I-17 off ramp will be closed nightly from 9 p.m. until 5 a.m. from Monday, Sept. 21 through Friday, Oct. 2.

Frontage Road Closures

  • Both northbound and southbound frontage roads closed between Cactus and Peoria.
    • Detours: Drivers can use 19th or 35th avenues.  Local access available via 25th Avenue or 28th Drive.
  • Northbound frontage road closed to local traffic only between Dunlap and Peoria.
    • Detour: Drivers can use 19th Avenue for through traffic. Additional local access available via 25th Avenue.

Cross-Street Closures and Restrictions

  • East- and westbound Peoria Avenue will be closed between 28th Drive and 25th Avenue from 9 p.m. on Friday, Sept 25 until 5 a.m. Monday, Sept. 28. There will also be additional lane restrictions on eastbound Peoria Avenue between 35th Avenue and 27th Drive, as well as on westbound Peoria Avenue between 19th and 25th avenues, during the road closure.
    • Detour: Drivers can use Cactus Road or Dunlap Avenue to access I-17 via 35th and 19th avenues.
  • Eastbound Peoria Avenue currently has 24-hour lane restrictions between 28th Drive to 25th Avenue through Friday, Oct. 2. The roadway is restricted to two lanes in each direction from 5 a.m. to 9 p.m. and restricted to one lane overnight from 9 p.m. to 5 a.m.
  • Westbound Peoria Avenue currently has 24-hour restrictions between 25th Avenue and 28th Drive from Monday, Sept. 21 through Friday, Oct. 2.  The roadway is restricted to two lanes in each direction from 5 a.m. to 9 p.m. and restricted to one lane overnight from 9 p.m. to 5 a.m. 

Upcoming Closures

Beginning Monday, Sept. 28 at 5 a.m. through early 2021 the following closures will be in place for the next phase of construction between Cactus Road and Peoria Avenue:

  • The southbound I-17 on-ramp at Cactus Road will be closed.
    • Detour: Drivers can use 35th or 19th avenues to Thunderbird Road or Peoria Avenue to access southbound I-17.
  • The southbound I-17 off-ramp at Peoria Avenue will be closed.
    • Detour: Drivers can exit I-17 at Cactus Road and use 35th or 19th avenues to access Peoria Avenue.
  • The southbound I-17 frontage road between Cactus Road and Peoria Avenue will be closed.
    • Detour: Drivers can use 35th and 19th avenues as alternate routes. Local access will be available via 28th Drive.

ADOT is constructing improvements to the storm water drainage system along I-17 between Greenway Road and Dunlap Avenue to reduce the potential for flooding. The improvements include constructing a new storm drain system to direct storm water into the Arizona Canal Diversion Channel, new drainage basins at Thunderbird Road, and removing the existing pump stations at the cross streets.