In July 1973, the California Department of Transportation—now known as Caltrans—was established to unify a wide range of transportation functions across the state under a single entity. Five decades later, Caltrans continues its mission to deliver a best-in-class experience for all Californians, regardless of the mode of travel they choose.

As the state's primary transportation agency, Caltrans plays a pivotal role in maintaining and improving California's vast transportation network. It oversees more than 50,000 miles of highways and freeways, manages approximately 13,000 bridges and tunnels, and operates numerous transportation facilities.

Over the years, Caltrans has undertaken significant infrastructure projects, including the iconic San Francisco-Oakland Bay Bridge, which was reconstructed after the 1989 Loma Prieta earthquake, and the massive and ambitious Interstate Highway System throughout California. This extensive network of highways greatly facilitated the movement of people and goods across the state and contributed significantly to California's economic growth.

With a large workforce of about 20,000 engineers, technicians, and support staff, Caltrans continues to strive for safer and more efficient transportation solutions, contributing to the state's economic growth and mobility

“This golden anniversary honors our current culture and values, which reflect a department more prepared than ever to face the challenges of the future. We are now inspired to deliver even more positive results in the next 50 years.”

To honor the milestone, Caltrans has released an update to its official website "History" page, tracing the state’s transportation roots from 1895 when the Bureau of Highways was formed to chronicle key developments and noteworthy projects that span to the present day.

Caltrans' 50 years of achievements are also the highlights of a new video narrated by Caltrans Director Tony Tavares.