The Poso Avenue underpass is located between State Route (SR) 43 and J Street. The underpass has four lanes and pedestrian access and will serve as a grade separation taking traffic and pedestrians under the BNSF freight railroad and future high-speed rail tracks. The grade separation also includes three bridges tha twill carry either high-speed rail, BNSF, or vehicle traffic over Poso Avenue.
Poso Avenue Underpass
- Kern, California
- Central Region
- Phase 1
- Fresno to Bakersfield
- Construction Package 4
- Undercrossing
- Location: On Poso Avenue between State Route 43 and J Street in the city of Wasco.
Updates Per Project
May 21, 2024
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