The Department of Public Works will construct a new 54-inch diameter force main sewer line. The new force main will operate as a parallel system in conjunction with the existing 48-inch force main. The new force main is needed to avert a potential sewage spill that could occur from an overflow or failure of the existing 54-year-old force main.The project objectives are to increase sewage capacity, create pipeline redundancy and allow for maintenance of the system. The performance of the existing force main is of concern because: