Silicon Valley Subway Cost Poised to Surge to $12.2 Billion

The price tag on the long-awaited subway project linking Silicon Valley to parts of the San Francisco Bay Area is poised to jump to $12.2 billion, according to a new estimate released Wednesday, making it one of the costliest transportation projects in the country.

The price is more than a third higher than the previous estimate and a 77% increase from a 2020 $6.9 billion projection. Subway planners attribute the increases to inflation. The Santa Clara Valley Transportation Authority, which is managing the project, is looking to the federal government to make up much of the higher costs as they compete with transit agencies for federal infrastructure dollars.