On August 3, 2023, the California High-Speed Rail Authority (Authority), in collaboration with California Rail Builders and the city of Wasco, celebrated the completion of the Poso Avenue grade separation project.
The Poso Avenue underpass is located between State Route (SR) 43 and J Street and has four lanes and pedestrian access. It will serve as a grade separation, taking traffic and pedestrians under the BNSF freight railroad and future high-speed rail tracks.
Completion of the Poso Avenue Underpass was met with much excitement, especially by the community of Wasco. Representatives from the high-speed rail Authority came together with City of Wasco and Kern County officials to celebrate the opening of the grade separation with a press conference in August. The underpass is located between State Route 43 and J Street and was designed with four lanes and pedestrian access. In addition, three bridges were built to go over the Poso Avenue Underpass including bridges to carry the BNSF railroad, vehicular traffic over Poso Avenue at J Street, and future high-speed rail lines. The grade separation is now open to traffic and pedestrians, allowing both to