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Grand Concourse

L.K. Comstock rehabilitated the signal system on NYCT's Grand Concourse Line.
Project Highlights 
  • Installed conventional fixed-block signal system technology
  • Constructed and installed new signal equipment in master signal tower and five relay rooms
  • Performed related architectural civil services
Transit & Systems
New York, New York
Customer 
New York City Transit Authority, part of the Metropolitan Transit Authority
Business Unit 
L.K. Comstock & Company
Project Description 

The $162-million Grand Concourse project rehabilitated the signal and communications systems for the NYCT’s Grand Concourse Line, a key commuter line linking the Bronx with Manhattan.

Project Scope 

L.K. Comstock provided electrical services totaling $83 million and civil architectural services totaling $15 million. This work included replacing the existing electro-mechanical-based signal system (circa 1933) with conventional fixed-block technology. L.K. Comstock constructed and installed signal equipment in a new master signal tower, five relay rooms and a central instrument room and signal power room. The project was completed in 2007.

Unique Features 

While rehabilitating the systems on the line, L.K. Comstock electricians installed approximately 1.5 million feet of signal cable and 270 signals.