![]() Support columns will be installed on top of the drilled shafts, which will support the new track structure.The contractor will drill deep shafts, about 60-80 feet below ground, and fill with concrete.Following demolition, Walsh-Fluor will build new track foundation columns on the east side of the CTA track structure.Demolition of the Lawrence, Argyle, Berwyn and Bryn Mawr stationhouses will begin. ![]() The project’s contractor will install access ramps to allow transfer of equipment and materials from street level to track level.This includes major demolition of part of the east side of the embankment wall for 1.5 miles and 11 bridges over cross streets in Uptown and Edgewater. The CTA’s contractor, Walsh-Fluor, will demolish the northbound Red and Purple Line track structures (the two easternmost tracks).Images: Google Maps, CTAĭemolition of 100-year-old track structure and four Red Line stationhouses The current Argyle station design and the future one. ![]()
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