Annapolis, MD

Bay Bridge 5kV Electrical Improvements

Scope of Work

Cianbro is responsible for the supply, installation, commissioning, cutover, and warranty on a new resilient remotely monitored and controlled 5kV feeder system. This project involves the installation of cable, related equipment, a SCADA system, and new support structures. The project also entails the removal and disposal of the existing cable and switchgear, as well as modifications to the utility feeds from Baltimore Gas and Electric and Delmarva Power, including the replacement of power transformers on both the East and West ends of the bridge.

Project Details
  • Install new structural steel supports for a 5kV, 480V cable
  • Install 23 new platforms for electrical equipment
  • Perform directional boring (East and West abutments)
  • Install concrete pads with electrical equipment
  • Install a prefabricated precast building
  • Install a new 5kV and 480V cable on the south Bridge
  • Install a new 5kV cable on the North Bridge
  • Install electrical equipment
  • Demolish existing 5kV cable and equipment
  • Install new integrated supervisory control and data acquisition (SCADA) system
Lean, Innovative and Unique Project Solutions
Cianbro is utilizing the Last Planner System for Lean construction scheduling. Additionally, suspended scaffolding is being utilized to provide access to work areas when egress via roadway and water is restricted and/or limited due to weather and other circumstances.
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P.O. Box 1000
Pittsfield, ME 04967

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