Mountain Ave Phase 2

Full reconstruction of one mile of Mountain Avenue from Grant Road to Ft. Lowell Road.  Borderland’s skills were put to the test while installing new sewer under existing low hanging overhead power lines, weaving the new lines under and parallel to existing utilities. It was necessary to suspend in the air existing utilities by strapping them to support I-beams while crossing under them.

Project Details

Location: City of Tucson, Pima County, Arizona
Construction Cost: $7.1 M
Owner: City of Tucson, Department of Transportation
Project Delivery: DBB 79% Self-Performed
Scope: Sewer line and waterline relocations

The Tucson Department of Transportation initiated the Mountain Avenue Demonstration Project in the late 1980s to guide the improvement of Mountain Avenue from Speedway Boulevard to Roger Road, and replace a roadside drainage ditch with a 78-inch drainage pipe underground from Speedway to the Rillito River.

Community Benefits

Mountain Avenue has become one of the City of Tucson’s most popular bicycle boulevards.


  • 6170 tons of Asphaltic Concrete Pavement
  • 2875 tons of Asphaltic Concrete Asphalt Rubber Pavement
  • 22,165 SF of Decorative/Stamped Asphaltic Concrete Pavement
  • 120 LF of 24″-42″ Corrugated Metal Pipe (CMP)
  • 760 LF of 24″-42″ Slotted Corrugated Metal Pipe (CMP)
  • 9465 LF of 24″-96″ Reinforced Concrete Pipe (RCP)
  • 220 LF of 34″x53″ Reinforced Concrete Pipe (RCP)
  • 295 LF of 58″x91″ Reinforced Concrete Pipe (RCP)
  • 8090 LF of 8″-30″ Sewer line (DIP and PVC)
  • 5450 LF of 4″-16″ Water line (DIP and PVC)
  • 17,720 LF of Concrete Vertical Curb and Header
  • 42,575 SF of Concrete Sidewalk
  • 33,865 SF of Decorative Concrete
  • 3,900 LF of Joint Utility Trench
  • 15,800 LF of 2″-5″ Utility Conduit (PVC)
  • Traffic Signal
  • Landscaping
  • Irrigation
  • Relocation of overhead utility lines to underground