San Francisco Oakland Bay Bridge, San Francisco, CA

Owner: Caltrans
Date of Performance: 2010 - 2012
Project Cost (Est.): $6.2 billion
Project Overview: Preliminary design, low profile street deck, structural design services, preliminary and final design, seismic retrofit, construction staging, project management, Caltrans and FHWA coordination

Following the 7.1 magnitude Loma Prieta earthquake on October 17, 1989, which destroyed the 250-ton upper deck section of the San Francisco Bay Bridge, seismic experts recommended a complete rebuild of the east span. IDC engineers played a critical role as sub-consultants in the PS&E phase, providing essential design skills and bridge expertise. Their contributions were vital, leading to their invitation to join the construction team to bring the project to fruition.