California High Speed Rail, Design-Build Packages 2 and 3, Central Valley, CA

Owner: CHSRA
Date of Performance: 2015 - 2018
Estimated Project Cost: $1.9 billion
Project Overview: This project involves the design and construction of high-speed rail and highway bridges, focusing on structural and seismic analysis, construction staging, and bridge widening. Key activities include nonlinear behavior analysis, structural design, and coordination with Caltrans for project management, design plan checks, permitting, and local agency coordination.

Construction Package 2-3 (CP 2-3) extends the California high-speed rail system over 60 miles from East American Avenue in Fresno to about one mile north of the Tulare-Kern County line. It includes approximately 36 grade separations—such as viaducts, underpasses, and overpasses—across Fresno, Tulare, and Kings counties. The estimated contract value exceeds $1 billion, encompassing the Fresno to Bakersfield section of the project.

As a subconsultant to Jacobs, IDC provides staff augmentation to support the structural design work for the HSR Packages 2 & 3 Design-Build delivery package. IDC engineers collaborate closely with Jacobs' structural engineers, handling tasks such as structure type selection, preliminary design, independent checks, and final PS&E for several structures within the project area. Together, IDC and Jacobs aim to develop cost-effective and easily constructible structure types for builders.