This document is the case study for the Dallas Fort Worth International Airport End-Around Taxiway. A drainage system for the end arounds discussed.

Dallas Fort Worth International Airport (DFW) became the only U.S. airport with an end-around taxiway at both ends of a runaway. This task was accomplished with the completion of its Northeast End-Around Taxiway Project. The end-around taxiway is designed to enhance airfield safety and efficiency and reduces aircraft taxi times.

Phasing for the drainage portion of the project was challenging as a primary requirement was to ensure the project would result in net-zero in flow-rate and velocity at each of the impacted outfalls. Austin Bridge and Road experienced difficulties procuring underdrain materials, so it received approval from the engineer to use alternate materials. Jacobs Engineering chose ADS HDPE pipe. More than 12,000 feet of pipe was installed along the proposed taxiway. The pipe was shipped from ADS Texas manufacturing plants allowing the project to stay on time and within budget.

The installation was done in 2018-22 using 5,180’ (1,579 m) ADS N-12® 8” (200 mm) pipe.

Photographs of the project are included.