Roadway Warnings – ADOT’s Weekend Freeway Travel Advisory

The on- and off-ramps at Interstate 17 and Happy Valley Road in north Phoenix are scheduled to be closed from Friday night through Saturday afternoon (Nov. 21) for construction work, according to the Arizona Department of Transportation. Drivers should allow extra travel time and consider alternate routes while the following weekend freeway restrictions are in place:

  • All Interstate 17 on- and off-ramps at Happy Valley Road in north Phoenix closed from 9 p.m. Friday to 5 p.m. Saturday (Nov. 21) for work to open additional lanes at the new diverging diamond interchange. Happy Valley Road also closed in both directions between 23rd and 29th avenues. DETOUR: Alternate routes include Pinnacle Peak or Jomax roads. Drivers can also use 19th or 43rd avenues for north-south travel while the Happy Valley Road interchange is closed. Note: Southbound I-17 on-ramp at Happy Valley Road closed overnight from 9 p.m. Sunday to 5 a.m. Monday (Nov. 23). Westbound Happy Valley Road also narrowed to one lane between 23rd and 29th avenues Sunday night.
  • Westbound Loop 101 (Pima Freeway) closed overnight at 56th Street in north Phoenix from 9 p.m. Sunday to 5 a.m. Monday (Nov. 23) for widening project. DETOUR: Traffic will detour along the off- and on-ramps at 56th Street. Please allow extra travel time and be prepared to slow down and merge safely when approaching and traveling through work zones. Note: Eastbound Loop 101 is scheduled to be closed at 56th Street from 9 p.m. Monday to 5 a.m. Tuesday (Nov. 24).
  • State Route 347 narrowed to one lane in either direction overnight in areas between I-10 and Hathaway Avenue in the Maricopa area from 8 p.m. to 5 a.m. Sunday through Friday nights (through Dec. 24) for pavement maintenance. Work will take place within 3-mile segments each night. DETOUR: Please allow extra travel time and use caution in all work zones while crews are sealing pavement cracks.

Real-time highway conditions are available on ADOT’s Arizona Traveler Information site at, by calling 511 and through ADOT’s Twitter feed, @ArizonaDOT.