Stamford Yard Catenary Improvements

This Connecticut Department of Transportation (CTDOT) design project is a replanned effort originating with the Stamford Center Island project that will replace all antiquated catenary structures in Stamford Yard, extend yard tracks, improve the passenger and maintenance of way yards, relocate and construct new crossovers, reconstruct retaining walls, replace yard sheds, replace catenary structure disconnect switches, and add car cleaning stations. This project includes additional scope transferred from the nearby Stamford Maintenance of Equipment Facility project (0301-0509) to illuminate Tracks 7 and 9 and provide CCTV connectivity and additional scope transferred from the nearby Atlantic Street Bridge Improvements project (301-0163) to provide signal redesign.

Garg Consulting Services, Inc. (Garg) is providing civil engineering, electrical engineering, power distribution, and lighting design services for the illumination of Upper Yard Tracks 7 and 9 and replacement of two sheds between sections of the yard. Tasks include, but are not limited to:

• Design of new high-mast lighting and controls, including foundation and structural pole, photometric analyses, and supplemental lighting mounted on new catenary structures—including attachment details—as required to meet illumination requirements.
• Lighting design calculations, conduit and conductor sizing calculations, and additional work as needed to demonstrate compliance with relevant codes and railroad and CTDOT requirements.
• Design of the lighting power system from railroad AC feeders, including a new catenary-pole-mounted transformer and pad-mounted panelboards.
• Design of power distribution upgrades for new maintenance sheds between the upper and lower areas of Stamford Yard.
• Complete 60% Design Development, 90% Contract Documents, 100% Final Design Documents, and the FDP for the Catenary Improvements for Electrical divisions and subsets.
• Electrical construction cost estimates for all submissions.
• Field review of the proposed design and utility interfaces with existing conditions and rail yard equipment and development of relevant demolition plans.
• Ongoing utility and railroad coordination, including consideration of existing overhead 115kV Eversource transmission lines.