Project Detail

Ivy City Substation & Transmission Line

Washington, DC

Scope of Work

Cianbro provided the construction, testing, and commissioning of a new 138 – 12 kV, 25 Hz, single-phase substation at the Ivy City Yard in Washington DC. The project included a five – mile long, 138 kV transmission line extension.

Project Details

  • Substation construction included:
    • Installed 138 kV transmission line terminations and motor operated disconnect switches
    • Installed traction power transformers
    • Installed 12 kV disconnect switches and circuit breakers, cabling, and feeders
    • Installed substation control building with relay control panels, auxiliary power, lighting, grounding, steel erection, wiring and terminations
    • Erected 164 tons of structural steel provided by Cianbro Fabrication & Coating
    • Performed site work including demolition, grading, drainage, utilities, and access road construction
  • Transmission Line construction included:
    • Drilled pole foundations
    • Installed 66 new steel transmission line poles, transmission line conductors, static wire, insulators, jumpers, and terminations
    • Removed and replaced existing transmission line conductors, static wire and all supporting assemblies

Lean, Innovative, and Unique Project Solutions

The project was on Amtrak’s Northeast Cooridor which is a live, heavily used route with trains traveling in both directions at speeds reaching 125 mph.