Walt Whitman Bridge Corridor Rehabilitation

Best Street Lighting/Traffic Signal Project



Carr & Duff was the electrical subcontractor to the general contractor JPC Group, Inc. for this – Award Winning – comprehensive heavy highway and structural project for the DRPA.

The Walt Whitman Bridge is one of the largest bridges on the east coast – a single-level suspension bridge spanning the Delaware River from Philadelphia, Pennsylvania to Gloucester City, New Jersey.

There were two primary sections of work areas for this project.  One was on the Walt Whitman Bridge and the other was the Pennsylvania Approach, which consists of I-76 Schuylkill Expressway from the bridge toll booths to approximately 2.5 miles west of the bridge.

The bridge work portion consisted of replacing six of the ten existing bridge gantries along with their associated total of twenty-three static guide sign lights, eighty-four lane use control signals, six variable speed limit signs, six cameras, six supervisory control and data acquisition (SCADA) cabinets, and six electric power centers.  All the new traffic signal equipment installed on the gantries are operated remotely from the DRPA Police Radio Dispatch office through the new fiber optic system installed underneath the bridge.

For the 2.5 mile approach portion in Pennsylvania, there were fifteen existing overhead road structures replaced.  Of these fifteen structures, ten received new Intelligent Transportation System (ITS) devices consisting of a total of six variable message signs, seven variable speed limit signs, eleven lane use control signals, and fourteen ITS cabinets for power, communication, and control of the new devices. In addition to the ITS devices on the PA Approach, two hundred twenty-five 30-foot LED pole lights for roadway lighting we installed along the corridor and its associated ramps.

This project extends the serviceability of the corridor through the improvements, increase safety for motorists traveling through the area, as well as improve the DRPA’s ability to effectively manage and maintain their facilities.