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Construction Activities at the 1st/Central & Mangrove Yards


Thursday, March 1: The duration of this activity has been extended through August 2018.


Regional Connector Constructors (RCC) will continue to perform construction and maintenance activities to support ongoing tunneling operation efforts at the following locations:

  • 1st/Central Station Yard
  • Mangrove Yard, located at the northeast corner of the 1st/Alameda intersection

Work is anticipated to continue Wednesday, August 30, 2017, and last through August 2018.

Anticipated work hours:

24 hours a day, Monday through Saturday, under the following shifts:

  • 7 am to 3 pm
  • 3 pm to midnight
  • Midnight to 7 am, as needed
  • Sunday shifts will be scheduled as needed


Activities include: equipment assembly/disassembly, housekeeping, steel rail installation, crane and locomotive operations, and tunnel segment assembly.

What to Expect

Work will take place within the Mangrove Yard. No additional traffic closures will be in place.

Program Notes

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