The SR-91 Improvement Project between La Palma and SR-55 will add a new eastbound general-purpose lane, widen bridges and reconstruct interchanges to improve traffic operations. SR‑91 carries more than 300,000 vehicles per day and is a critical connection between Orange County and the Inland Empire, where growing demand has increased congestion and delays.

Jacobs will also deliver construction management services for the I-5 Improvement Project between I-405 and Yale Avenue. This section of I-5 is one of the busiest in Southern California, with average daily traffic exceeding 275,000 vehicles. The project will enhance safety, improve travel times and support economic growth in the region.