SR 80: San Pedro Bridge Replacement Project in St David

SR 80: San Pedro Bridge Replacement Project in St David



The Arizona Department of Transportation is performing a bridge repair project on State Route 80 in St David, spanning the San Pedro River. The work will consist of removing the existing San Pedro River Bridge and replacing it with a continuous three span welded steel plate girder bridge. Additional work includes replacing guardrail and pavement markings.

What to expect during construction

  • Motorists should prepare for delays during peak travel times.
  • One lane will remain open at all times.
  • Traffic will be shifted during construction to allow crews to work on one side of the bridge at a time. 
  • Temporary traffic signals at bridge access points will be used to regulate traffic in each direction.
  • A 10-foot vehicle width restriction will be in place.
  • Work is scheduled to occur from 5 a.m. to 3 p.m. Monday - Friday

Project Timeline

Work on this project is expected to be completed by fall  2024.

Schedule subject to change based on weather or other unforeseen factors.


For oversized loads above the 10-foot vehicle width restriction, please use alternate routes. Consider using  SR 90 to  SR 82.

Stay Informed


ADOT welcomes your questions or comments. Please feel free to contact us in any of the following ways:

  • Online: Submit a question or comment  please email [email protected] 
  • By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
  • By mail: Write to ADOT Community Relations, 1221 S. Second Ave. Tucson, AZ 85713. 
  •  For information about current project-related restrictions and closures, please visit or call 511, except while driving.

ADOT will provide more information about project schedules and potential traffic impacts as information becomes available. Stay informed about traffic restrictions before they occur by signing up to receive timely traffic alerts by email.