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Rehabilitation of Circuit Breaker Houses

New York, New York

Market Sector

Rail and Transit


Passenger and Transit, Stations, Yards and Terminals, Systems, Yards and Terminals

Services Provided

Construction Management, Construction Engineering and Inspection



T.Y. Lin International (TYLI), as managing partner in a joint venture, provided Consultant Construction Management (CCM) services to New York City Transit (NYCT) for the rehabilitation of four NYCT circuit breaker houses. The purpose of the project was to provide increased resiliency for these vital NYCT systems following damage by Superstorm Sandy.

The CCM team began with site visits and a constructability review of pre-final bid documents. TYLI’s constructability comments and directives improved the bidding phase of the project, enhanced safety with confined space construction protocols, and identified cost and schedule savings.

Project scope comprised numerous architectural improvements, including a new roof membrane; special coatings on exterior walls; the provision of dielectric floor coatings and the installation of new stainless-steel doors; structural improvements, with a new gabled roof; concrete roof rehabilitation; caulking and other waterproofing measures for underground vaults; electrical repairs to lighting and controls; and new heating systems.

The project required that facilities remained in service during construction. Protection of the sensitive, high-current electrical equipment was also crucial.

Project Highlights:

  • The CCM team approved and enforced the work safety plans, which considered technical and safety issues related to electrical hazards and confined spaces.
  • TYLI performed constructability reviews identifying cost and schedule savings
  • Work was performed effectively and safely in an active rail yard, without incident or impact to rail operations.
  • TYLI oversaw concurrent work at multiple, ongoing sites.