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TBM Maintenance at the Grand Av. Arts/Bunker Hill Station


Wednesday, June 14, 2017: Scope of work expanded and duration extended to August 5, 2017.


Regional Connect Constructors (RCC) will perform tunnel construction activities from the Grand Av Arts/Bunker Hill Station site to the tunnel’s terminus at the intersection of Flower St at 4th St.

Work is anticipated to continue Friday, June 2, for approximately two months. Tunnel mining will have the following shifts: 5 am to 3 pm; 3 pm to 1:30 am; and 1:30 am to 5 am (as needed), Monday through Saturday. Sundays as needed.


Activities include: power hose/wash TBM equipment, housekeeping, steel rail install to support TBM crossing, crane usage. Locomotive usage and assembling segments. Tunnel activities are not expected to generate perceptible noise nor vibration.

What to Expect

Activities will take place at the bottom of the excavated station. Backup alarms will be modified.

All work will be contained within the staging yard.

Program Notes

Eat, Shop, Play Local

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