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Location: Baltimore, MD
Owner: Maryland Transit Administration (MTA)
Client: Delta Railroad Construction
Contract Value: $2,000,000
Year Completed: 2016
Sector: Rail & Mass Transit

▪︎ Traction Power Systems
▪︎ Train Control Systems
▪︎ Construction in Active Rail System

The project team performed all traction power and automatic train control work to facilitate replacement of three interlockings on the Baltimore Metro system. Our work began with removal of traction power and automatic train control equipment and cabling from the track. Following demolition and installation of new special trackwork, C3M reinstalled traction power and automatic train control equipment, including switch machines, snowmelter cases and associated switch heater elements, third rail heater cabinets, impedance bonds, and associated conduit and wire. All work was accomplished during a 21-day shutdown of the track section containing the interlockings.

C3M received a Certificate of Appreciation from MTA in recognition of its excellent performance on this challenging project.


  • Certificate of Appreciation in recognition of outstanding teamwork and valuable contributions towards a successful completion of the Metro Interlockings Project, August 2016
  • Maryland Quality Initiative (MdQI) - Award of Excellence for Projects over $5 Million - 2016 

“I would like to thank…C3M Power Systems for the exemplary performance in completing all three Interlocking and two additional signal locations in record time and under less than ideal conditions. That was definitely a Gold Medal Performance.”

— Teisha Dearing
Program Management and Controls,
AECOM on behalf of Maryland Transit Administration