The California’s High-Speed Rail-4 project is one of the most ambitious infrastructure initiatives in the United States. It aims to deliver a sustainable and efficient transportation solution, connecting major cities through high-speed rail.

Spanning a 22-mile corridor between the Tulare/Kern County Line and Poplar Avenue, this project involves multiple key infrastructure components:

  • At-grade embankments
  • Retained fill overcrossings and viaducts
  • Aerial sections of the rail alignment
  • Relocation of four miles of existing Burlington Northern Santa Fe (BNSF) tracks 

As the project progresses, Geoquest USA is supplying engineering expertise and retained fill solutions across a wide portfolio of Reinforced Earth walls.

Key figures:

  • Nearly 300,000 square feet of wall and
  • Over 16,000 linear feet of precast coping, distributed across
  • 10 walls, some reaching 45 feet in height
     

The walls supporting high speed rail are designed to meet the project’s loading specifications, and are engineered to accommodate both sound wall posts and overhead catenary poles, positioned inside and behind the Reinforced Earth fill volume.

Our structures are nearing completion, and the full project completion is anticipated by 2033.

Kudos to the teams on site for their ongoing efforts – you’re helping shape the future of mobility.