State: AZ
Description: In February 2018, Chandler’s potable water distribution system experienced a large water main break northeast of Price Road and the Loop 101/202 Santan Freeway interchange. This water line was accessed, repaired, and recently put back into service. Findings from a subsequent water line assessment raised concerns about a large 66-inch sewer line that also exists adjacent to these water lines crossing under the freeway. This sewer line transmits wastewater flows from north Chandler south to the Ocotillo Water Reclamation Facility for treatment. This large sewer line was installed at the same time as the water main crossing during the construction of the freeway interchange. The city’s 2018 Water, Wastewater, and Reclaimed Water Master Plan also analyzed this 66-inch sanitary sewer freeway crossing and system redundancy. The evaluation noted the lack of redundancy for the sanitary sewer system crossing the freeway from north to south and the need in the near future to rehabilitate the existing freeway sewer crossing. The project includes installing a redundant 66-inch diameter gravity sewer line that crosses the Loop. 202 Santan Freeway. The 66-inch diameter gravity sewer line segment is approximately 800 linear feet in length of which 650 feet will be routed within a new steel casing as it crosses the Loop 202 Santan Freeway. In addition, this project includes rerouting of several 48-inch diameter gravity sewer lines that are approximately 2,000 linear feet in length and four (4) junction structures for connecting the existing gravity sewer lines to the proposed redundant 66-inch gravity sewer line. Further, the project services will include cured-in-place pipe (CIPP) lining of existing 66-inch diameter sewer, 48-inch diameter sewer, and 30-inch diameter sewer.
Location: Chandler, AZ
