Alerts FINAL UPDATE: Delay at Steuart and Mission has cleared. The 2, 6, 9, 14, & 14R resuming regular service.(More: 20 in last 48 hours)

Central Subway Tunnel Boring Machine Time Lapse

Wednesday, December 24, 2014

Tunnel boring machines Big Alma and Mom Chung hole-through and extraction at the North Beach retrieval shaft.

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