Project Name:
CTA Dan Ryan Track Renewal & Station Improvements Project
Start/Scheduled Date of Completion:
October 2012 - Jun 1 2014
SQN's Role on Project:
Project Management & Field Engineering
Project Scope:
The Project consisted of full depth reconstruction of the Red Line Dan Ryan Branch, originally built in 1969, from the 16th St. Portal to 95th St. Interlocking, and including the double track incline structure north of Cermak Junction and the 18th St. Connector to the Orange Line. The Red Line scope, which was performed during an unprecedented 154 day extended line cut, included replacement of ties, running rail, contact rail system, drainage system, ballast, subgrade and the underground ductbank system including cables for signal and communications. The contract also included reinstallation of the signal system components along with the existing contact rail as auxiliary negative rail. Work within the existing interlockings consisted of surfacing, track realignment, contact rail replacement, minor drainage improvements and installation of new signal cables. Various architectural, civil, structural, mechanical and electrical improvements were made at all eight stations along the Dan Ryan Branch and elevators were installed at three stations making the entire South Red Line fully accessible.
Total Project Budget:
Project Delivery Method:
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