Valley Stream Substation Design

Client: Long Island Rail Road
Location: Long Island, N.Y.
Construction Cost: $14 million

Our firm provided design services to Long Island Rail Road, an agency of the Metropolitan Transportation Authority, for the replacement of the Valley Stream substation building and equipment. This substation feeds four main line tracks and two far rockaway branch tracks for 750V direct current (DC) 3rd Rail Traction Power.

Our firm’s design included new dual, 34-kV primary feeders, alternating current switchgear and rectifier transformers, rectifiers, DC switchgear, remote control, battery and battery charger, DC duct banks, and feeders. One 150-kVA motor-generator frequency converter set for signal power was included in the design.

Designs:

• Substation building, including motor-generator (MG) set
• Substation equipment, including MG set
• Incoming utility dual feeders
• DC duct banks and feeders
• Employee facility building
• New parking lot.

Services Provided:

• Conceptual design
• 30 percent, 50 percent, and 90 percent, and final design
• Construction estimates
• Specifications
• Project management
• Environmental study
• Construction sequence development with no adverse effect on railroad operations
• Bid-cycle support
• Site surveying
• Test borings and geotechnical analysis
• Environmental assessment
• Permits and easements
• Site clearing.