• Cranbury, NJ
  • New York, NY
  • advantage@aeapc.com

Bronx Whitestone Bridge-Queens Approach Replacement

Bronx Whitestone Bridge-Queens Approach Replacement


Triborough Bridge & Tunnel Authority

Relevant Project Components

    • Experience with IESNA requirements
    • Bridge Lighting
    • Temporary Lighting Design
    • Relocation of 5KV feeder
    • Outdoor/Indoor Lighting Systems
    • Security Lighting Systems
    • Experience with IESNA requirements
    • Medium/low voltage power distribution
    • Metering/switchgear equipment
    • Relaying Protection
    • Post Design Services


AEA has provided engineering services to the Triborough Bridge and Tunnel Authority (TBTA) for Replacement of the Queens Approach at the Bronx-Whitestone Bridge. A thorough review of as-built plans was performed followed by in depth site visits to evaluate existing electrical facilities. Proposed lighting installations included roadway luminaires, underdeck luminaires, and luminaires mounted to the Queens Anchorage room. Proposed roadway lighting was controlled using an existing contactor and integrated into the existing SCADA power monitoring control system. Temporary power plans for roadway lighting were designed to accommodate various staging requirements. Existing medium voltage (5kV) bridge feeders and fiber optic cable between the Queens Meter Room and Queens Anchorage were required to be relocated. Staging was required to accommodate structural installations. To facilitate relocation, the existing 5kV feeders and fiber optic cables were relocated. Temporary 5kV feeders and fiber optic cable were installed and made operational prior to removal of the existing installation. Then, proposed 5kV feeders and fiber optic cable were installed in their final locations. Proposed Intelligent Transportation System installations included Variable Message and Variable Speed Limit signs. Fiber communication was used to operate these signs. The existing suicide phone was relocated and new telephone cables were installed. Proposed panels were specified and design included panel schedules, overcurrent protection devices, and circuiting. Construction details showed location and mounting details of proposed panelboards, layout of Queens Anchorage and Queens Meter rooms, mounting of lighting standards, and mounting of pull boxes. Details for conduit, wiring, and splicing were also provided. Conduit was routed exposed, underground, and through concrete. One line wiring diagrams were included to show electrical distribution. Voltage drop, conduit fill, and load calculations were performed. Provisions were included to protect and maintain electrical equipment to remain. Temporary generator was utilized to provide power during scheduled and unscheduled power disruptions. The aviation and navigation lighting were maintained throughout construction.