Engineering for Gravity Sewers & Force Mains
Gravity Sewer Design
WithersRavenel has designed gravity sewer varying in size from 8 inches to 42 inches and ranging in length from a few hundred feet to several miles long. We can develop construction plans for bore-and-jack and pipe bursting projects as well as traditional open cut construction, and we work with clients to select the best approach based on their site conditions and constraints.
Force Main Design
In addition to conveying wastewater from a pump station to an interceptor or treatment plant at a higher elevation, force mains may also be necessary to cross a drainage divide or when installation for a gravity sewer is cost-prohibitive. WithersRavenel has designed force mains to address the challenges posed by rocky and hilly terrain, wetland and riparian buffers, limited right-of-way, and existing utility conflicts.