Helmet Peak Traffic Interchange at Sahuarita Road/Interstate 19 Pima Mine to Duval Mine Road


The Arizona Department of Transportation is completing a bridge re-deck and pavement preservation project located on Interstate 19 in the Southcentral District, Pima County within the Towns of Sahuarita and Green Valley.

  • Helmet Peak Bridge Deck replacement at Sahuarita Road
  • 2” mill and replace 3-1/2” AC and ½” of AR-ACFC
  • New guardrail installation


  • Start of Construction: Winter 2021
  • Estimated Completion: Fall 2022

Key Elements of the Project

  • Bridge re-deck
  • Milling and pavement replacement
  • New guardrail
  • New signing and striping
  • Bridge Overlay Work

Stay Informed

Schedules are subject to change based on weather and other unforeseen factors. Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email. For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at www.az511.gov, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.