The California High-Speed Rail (CHSR) project includes the planning, design, construction and operation of the first high-speed rail program in the nation, initially proposed to run from San Francisco to the Los Angeles basin in under three hours at speeds of over 200 miles per hour. The CHSR Authority divided the first 30 miles of the First Construction Segment into four sections of design-build contracts. Construction Package 4 (CP4), located within the counties of Tulare and Kern is approximately 22 miles in length.
Geocon joined the Louis Berger Group, Inc. Design-Build team, which was pre-qualified to submit a proposal to provide design-build services for CP4. The proposed CP4 alignment includes embankment sections as well as retained fill, bridges, and elevated structures. This project also includes numerous secondary transverse vehicular bridges (grade separations) at select local street intersections. The project requires shallow and deep foundations, earth retaining structures, and earthwork embankments for the proposed improvements. Geocon prepared three draft preliminary Geotechnical Design Memorandums (GDM), one each for the civil, structures, and grade separation components of the baseline design to aid in preliminary project design and bidding.