Walsh Construction is part of the joint venture constructing a new second railroad track and other improvements within a 26.6-mile section of NICTD's existing South Shore Line between Gary and Michigan City, Indiana. Construction elements include a new separated two-track right-of-way in Michigan City, replacing the current street-running tracks, a new overhead contact system, new or modified railroad signals and control systems, reconstruction of at-grade crossings including new and modified grade crossing warning equipment, culvert replacements, passenger platform upgrades at five stations, and additional surface parking lots. Four new railroad bridges will be constructed for the new second track.