This project consists of the removal and replacement of up to 160 feet of 24-inch sewer main located on the east side of Highway 95 North of Merrill Ave and South of Rio Rancho Blvd. The existing sewer main was constructed of 24-inch HDPE and shall be replaced with 24-inch SDR35 PVC. This section of sewer main has been crushed due to infiltration of dirt and rock between the 36-inch ADS sleeve and the 24-inch HDPE. An emergency replacement project was initiated in December 2023 which replaced approximately 103 feet of pipe. A temporary connection was made using a concrete encasement to prevent any sewage loss, and to prevent any further damage to the existing main. This concrete encasement is located approximately 103 feet south of MH-15921 and must be removed to make connection to the existing SDR35 PVC. The pipe replacement for this project will continue from this point to the south, up to 160 feet in length. The end point of this replacement will be determined by the Bullhead City Utilities Department Project Manager. Before starting the replacement of this pipeline, bypass pumping must be installed per the City’s bypass pumping requirements and per the bypass pumping plan provided by the contractor. A water main bypass must be installed per plan to reduce the possibility of any water outage during this project. All temporary pipes and fittings must be disinfected during installation per ANSI/AWWA Standard C651-14. A sample port must be installed on the bypass line and a BAC-t test will be collected by the Bullhead City Water Quality Specialist. This Bac-t test must “pass” prior to opening the bypass.
