Geotechnical Work at Diridon Station

Notice Cause
Notice Effect
Noise and Vibration
Partial Parking Lot Closure
Start Date
End Date
Map of Diridon Station area with a red construction box highlighting the parking lot between Santa Clara, Montgomery, Crandall, and Cahill Streets.


Contractors will be undertaking extensive soil testing and trenching in one parking lot at Diridon Station to help prepare for VTA's BART Silicon Valley Phase II Project.  

Note: Major construction is expected to begin in late 2022.


Parking lot between Santa Clara, Montgomery, and Cahill Streets.

No on-street activities or detours anticipated. 


July 12 – August 16, 2021

Construction timelines subject to change. 

7 a.m. – 5 p.m., Monday – Friday

No weekend work anticipated.

What to Expect

  • Underground explorations / trenching to assess soil conditions
  • Saw cutting, excavation, and pavement restoration
  • Restoration work (e.g. patching holes and pavement) upon work completion
  • Temporary parking loss
  • Minor dust, noise, and vibration during work hours
  • Heavy machinery on site: excavators, pickup trucks, asphalt paving machines, dump trucks