Wastewater Treatment Plant Influent Sewer Line Replacement

Because of a deteriorated sewer main, the City of Hughes Springs hired KSA to replace approximately 1,850 linear feet of six and eight inch gravity sewer line. The deteriorated sewer main caused an increase of groundwater infiltration and inflow, which added stress to the wastewater system.
 
Before design began, we surveyed and mapped the existing system to assess the damage and develop a viable replacement plan. The influent sewer line was replaced by means of directional drill, open cut and boring with standard dimension ratio (SDR) 26 polyvinyl chloride (PVC) and high density polyethylene (HDPE) pipe gravity sewer line. We also included new manholes. The existing alignment of the sewer line appeared to route beneath an existing house, so we proposed alternative installation methods to minimize impact to the house and surrounding trees. We negotiated with the Kansas City Southern Railroad on behalf of the City of Hughes to eliminate the permit fees associated with crossing the railroad. These negotiations resulted in a 10% reduction of overall project costs.
 
Construction went smoothly. While maintaining sewer service to existing users, we provided construction administration services as well as part time project representative services to monitor progress.