Traffic Alerts - SR 189: International Border to Grand Avenue

SR189 Freeway - Ramping up for the future

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Plan for overnight lane and ramp closures on Interstate 19 and State Route 189 in Nogales starting March 28

Drivers in Southern Arizona should plan ahead for nighttime full closures of northbound and southbound I-19 and SR 189, and the on-and-off ramps at SR 189 and I-19 beginning Sunday, March 28. All closures will begin at 8 p.m. and be lifted by 5 a.m. the following morning.

The closures starting Sunday, March 28 through Thursday, April 1, are as follows;

  • Southbound SR189  from I-19 to North Industrial Park Drive
  • Northbound SR189  from North Frank Reed Road to I-19 
  • SouthboundI-19  at Grand Avenue
  • The southboundI-19  off-ramp to SR189 

The closures taking place the nights of Thursday, April 1, Monday, April 5 and Tuesday, April 6, are as follows;

  • The southbound I-19 off-ramp at SR 189 and the northbound I-19 on-ramp at SR 189 
  • NorthboundI-19 near SR 189 (the night of Thursday, April 1,ONLY) 
  • Frank Reed Road at SR 189; drivers will have access to areas east of SR189 by using Shell Drive.  

Detour: Drivers can use can use Grand or Western avenues. 

Work is occurring in conjunction with the SR 189 improvement project between the international border and Grand Avenue in Nogales

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 while driving.