![]() Here, riders transferred to the Market-Frankford Line for Center City and did the reverse from 13th Street in Center City. All stations underwent deep cleaning, repairs, graffiti removal and repainting, and workers repaired some spall, or crumbling concrete, on the tunnel walls and checked for any other signs of damage, according to Kate O’Connor, the Chief Engineer for Buildings and Bridges.ĭuring the tunnel closure, trolley routes 10, 11, 13, 34 and 36 used the emergency surface trackage to 40th and Market Street. In addition, the usual cleaning and flushing of pipes and drains was performed, switching equipment was repaired and tested and maintenance of the signal system was done. Worn rail was replaced at curves throughout the tunnel and four miles of new overhead wire was hung. Work in the tunnel included the demolition and reconstruction of the entire eastbound platform at 22nd Street Station, including the replacement of the track bed. “About 200 day-shift workers and about 150 workers on the night shift will swarm the tunnel”. “We run around the clock for a 16-day window,” said Dave Montvydas, Chief Engineer for SEPTA’s Engineering, Maintenance and Construction Division. and continuing through July 25 at 5 a.m., the 10 the annual Transit Tunnel Blitz closed down the Center City Trolley Tunnel that runs from 13th Street to 40th Street so major work could be performed without interruption.
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