Tucson Spectrum – Site Infrastructure

Borderland negotiated, value-engineered, and performed all the site work for this 113-acre shopping center, one of the largest open-air retail centers in the western United States.

The project included complete site civil work for a master-planned regional mall (965,732 square-foot retail center), including clearing, mass grading, underground utilities, drainage improvements, con-arch bridges, paving, soil cement bank protection along Santa Cruz River, river park pathways, and new traffic signals.

Project Details

Location: City of Tucson, Pima County, Arizona
Construction Cost: $16.5 M
Owner: DDR Corp. (developed and sold by Barclay Group)
Project Delivery: DBB
Scope: Clearing, mass grading, drainage, wet and dry utilities, on-site and off-site paving improvements, and major channel improvements to the Santa Cruz River

Community Benefits

Flood control improvements included soil cement bank protection along the Santa Cruz River.


  • 500,000 CY of excavation
  • 7,000 LF of 24” water main
  • 30,000 LF of dry utilities
  • 30,000 CY of soil-cement bank protection
  • Multi-use path along the Santa Cruz River that is part of The Loop, Pima County’s bike and pedestrian path system