I-17 101 traffic interchange

Final phase of ADOT SR 77 repaving project beginning in Tucson area

Final phase of ADOT SR 77 repaving project beginning in Tucson area

May 10, 2023

Crews replacing worn pavement between Ina Road and Rillito River Bridge

TUCSON – The Arizona Department of Transportation is set to begin the final phase of a project repaving 10 miles of State Route 77 between Tucson and Oro Valley. On Sunday night, May 14, crews will begin replacing about 3 miles of worn pavement between Ina Road and the Rillito River Bridge just south of River Road. 

As has been the case with most major work on the $34 million project, the paving will occur overnight to minimize restrictions and delays.

As the project continues through July, motorists can expect work to take place between 7 p.m. and 6 a.m. Sunday through Thursday nights, with the exception of the Memorial Day and the Fourth of July holiday weekends. 

Crews will begin with southbound SR 77 at Ina Road and move south and one lane at a time. Once they reach the Rillito River Bridge, work will begin on the northbound lanes. Motorists should expect an uneven driving surface and lowered speed limits. 

One lane will remain open in each direction at all times. However, eastbound and westbound traffic will be detoured as crews work at the intersections of Ina, Orange Grove, Rudasill and River roads.

The project also has improved safety and traffic flow SR 77 between Interstate 10 and Miracle Mile, as well as on Oracle Road between Miracle Mile and Calle Concordia: The improvements include:

  • Reconstructing and repave the roadway from River Road to Calle Concordia
  • Adding dual left turn lanes to the intersection of Magee and Oracle roads
  • Adding LED street lights between River and Ina roads
  • Constructing ADA-approved ramps, sidewalks and driveways between River and Magee roads to improve pedestrian safety
  • Installing a storm drain system from River to Orange Grove roads
  • Reconstructing driveways, sidewalks and sidewalk ramps between I-10/Miracle Mile and River Road
  • Improving signals and intersections between River and Ina roads
  • Improving roadway drainage
  • Relocating utilities

Throughout the project, ADOT has maintained access to the roughly 1,100 businesses in the corridor.

For more information about the project, please visit azdot.gov/SR77.