Inside California’s $35 Billion High-Speed Rail | 171 Miles of Engineering in the Central Valley

How do you build America’s first true high-speed rail system? The California High-Speed Rail – Central Valley is one of the most ambitious transportation projects in the United States. The Central Valley construction program is creating a massive rail corridor designed to connect California’s major cities at speeds of up to 220 mph (354 km/h). In this video, we take you inside the construction process—from massive earthworks and concrete structures to bridges, viaducts, rail systems and the complex engineering required to create a modern high-speed railway. With 171 miles of active construction, dozens of major structures and a project investment reaching tens of billions of dollars, the scale is extraordinary.