Using trenchless methods to increase life cycle value
Garver provided conceptual and final design and construction phase services for over 1,000 linear feet of 24-inch wastewater interceptor, a dual barrel inverted siphon, and a new Trinity River Authority of Texas (TRA) meter station at Dallas-Fort Worth (DFW) International Airport. This project included the decommissioning of an existing aerial crossing of Bear Creek, modeling the proposed siphon to right-size for average and peak flows, and maintaining cleaning velocities. Trenchless construction methods were used including 140 linear feet bore of the south entrance road as well as installing both barrels, over 330 linear feet each, of the inverted siphon. Polymer concrete junction chambers and manholes were used to provide the greatest project life cycle value.