South Central Projects

State Route 77 from Tangerine Road to Pinal County Line

ADOT, the Federal Highway Administration and the Regional Transportation Authority are working together to improve traffic flow and enhance safety along SR 77, also known as Oracle Road.

The study evaluated improvements along Oracle Road between Tangerine Road and the Pinal county line that crosses through the Tucson and Oro Valley metropolitan areas, the community of Catalina and Pima and Pinal counties.

Utility relocation work along the project area began spring 2013 and is expected to last through fall 2014.

These are the planned improvements:

  • An additional 12-foot-wide travel lane in each direction for a total of six travel lanes throughout the project area
    • 10-foot-wide shoulders; seven-foot-wide with curb
  • Raised center medians and left-turn lanes in the Catalina area
  • Retaining walls
  • Noise walls
  • Traffic signal improvements
  • Drainage improvements
  • Shared-use path on the east side of Oracle Road from Wilds Road to Eagle Crest Ranch Boulevard
  • Two wildlife crossing structures to allow wildlife to migrate safely, between the Santa Catalina and Tortolita mountains, without crossing the roadway at street level
    • The crossing structures are made possible through RTA funding and are planned to coincide with the ADOT widening project for Oracle Road.