Geotechnical work underway on Pacheco Pass

The California High-Speed Rail Authority (Authority) and its contractor Kleinfelder are currently performing geotechnical work along State Route 152 in the Pacheco Pass.  Drilling crews are taking soil and rock samples from several locations within the public right of way. These samples will be used to determine the exact conditions of the ground, hundreds of feet below the surface, where roughly 13 miles of future high-speed rail tunnels are proposed.

While the process to environmentally clear the San Jose to Merced Project Section is still underway, getting a head start on geotechnical investigations is crucial. See why this work is so important and learn more about the history crews are unearthing right here in Northern California.

For more information on the San Jose to Merced Project Section, visit

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