A gravity sewer is an underground pipe used to move wastewater by sloping pipes between manholes, using the difference in elevation to keep the fluid moving. 

When gravity sewer reaches a low point underground and gravity can no longer assist in moving fluid, a pump station is installed to pump the sewage up to a higher elevation, to another pump station, or directly to a wastewater treatment facility. 

 A force main is an underground pipe that uses a pump to move sewage through the system. 

Many of the construction activities can be done within the public right-of-way, which will minimize the impacts to traffic. However, when traffic impacts cannot be avoided, every effort will be made to limit lane closures to single-lane only. 

On-site signage will be used during construction and when traffic impacts are anticipated. As best possible, those affected will be notified of road closures in advance via digital signage or other methods. Signs may appear as early as 30 days ahead of a planned closure or route detour.