Twin Peaks-Blue Bonnet Road Gravity Sewer

Project Owner: Pima County Regional Wastewater Reclamation Department (PCRWRD)
Project Type: Design-Build
Construction Dates: 09/18 to 02/20

This multi-phased project was for the installation of a gravity sewer line near the Twin Peaks Road/Blue Bonnet Road alignment in order to connect future developments to the gravity sewer system. The line extends north to the PCRWRD Tangerine Pump Station. Significant coordination with PCRWRD, private developers, and stakeholders was required, and the project followed a strict schedule in order to facilitate the construction of planned developments.

This project was divided into three segments:

  • Segment 1 extended from the Tangerine Road Pump Station south to the intersection of Blue Bonnet and Twin Peaks Road. Quantities included 23 manholes (5-foot diameter) and 10,000 LF of 15” sewer, 200 LF of which will be jacked and bored under Twin Peaks Road.

  • Segment 2 extended from the Blue Bonnet and Twin Peaks Road intersection to approximately 200 feet south of the Linda Vista and Hartman Lane intersection. Quantities included 7,181 LF of 15” sewer, 12 manholes (5-foot diameter), and one polymer junction manhole.

  • Segment 3 extended from the end of Segment 2 to just south of the Cortaro Farms and Hartman Lane intersection. Quantities included 8,000 LF of 15” sewer and 22 manholes (5-foot diameter).

As part of this project we also completed the installation of PCRWRD’s first ever SaniTite sewer line. PCRWRD is testing the material for use in sewer line installation projects.

PROJECT AWARDS

2019 Common Ground Award - Metropolitan Pima Alliance
2021 Public Works Project of the Year - Arizona Chapter American Public Works Association
2021 Build Arizona Award - Arizona Chapter Associated General Contractors

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