State Highway (SH) 161, the President George Bush Turnpike Western Extension (PGBT WE), provides a new, approximately 11.5-mile link between SH 183, I-30, and I-20 as part of a western loop around Dallas through the cities of Irving and Grand Prairie south of Dallas-Fort Worth International Airport. In April 2008, the Texas Department of Transportation (TxDOT) agreed to a concession with NTTA in perpetuity (with revenue and capital improvement cost sharing after 52 years) to own, operate, and complete project.

The new toll road is being constructed in four phases:  Phase 1: An interchange with SH 183 and service roads from North Carrier Parkway to I-20, constructed by TxDOT (open); Phase 2: Two toll lanes in each direction from SH 183 to Egyptian Way, constructed by TxDOT (open); Phase 3: Services roads and a third toll lane in each direction from Conflans Road to North Carrier Parkway, constructed by TxDOT (open); and Phase 4: Two toll lanes in each direction from North Carrier Two toll lanes in each direction from North Carrier Parkway to I-20 with interchanges at I-30 and I-20 (I-20 open). All major interstate connections to the Chisholm Trail Parkway are complete.

SH 161 serves as a major link within the Dallas-Fort Worth regional transportation network, reducing congestion along adjacent corridors and improving the travel experience in surrounding communities. Overall, the project ensures smoother and more efficient traffic flow of workers and goods by creating a parallel route to the currently congested State Highway 360.