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Delaware Memorial Bridge Toll Collection System Installation

Fully integrated system makes toll collecting more efficient on Delaware’s busiest bridge.
  • Delaware Memorial Bridge toll lanes with new lane signs - Gannett Fleming.

    All toll lanes are now capable of accepting cash, E-ZPass, or both forms of payment.

  • Installing new lane signs at the bridge’s toll plaza - Gannett Fleming.

    New lane signs provide clear direction to drivers passing through the toll plaza.

Delaware River and Bay Authority


New Castle, Delaware

Our Role
Electrical, Structural, Civil

13-lane toll plaza
Construction Cost
$7.6 million
In progress
New Construction
  • State-of-the-art toll collection system provides more efficient service
  • New electronic lane signs allow for quick customization of payment methods
  • Each toll lane is fully equipped to handle multiple forms of payment.

Spanning the Delaware River to connect New Jersey to the First State, the four southbound lanes of the Delaware Memorial Bridge handle more than 17 million vehicles every year. The bridge is a major part of the north-south transportation corridor between New York City and Washington, D.C. To make the crossing faster and more efficient for motorists, the Delaware River and Bay Authority (DRBA) needed to upgrade the bridge’s toll collection system. The existing infrastructure featured select toll lanes accepting only cash and other lanes accepting only E-ZPass. With three-quarters of all drivers now using electronic payment methods, the system was quickly becoming outdated.

To reduce congestion and ensure tolling accuracy, the authority decided to replace the old system with a state-of-the-art Integrated Toll Collection System (ITCS) and add electronic lane signs that clearly show acceptable payment methods. The improvements will allow all of the bridge’s toll lanes to accept cash, E-ZPass, or both forms of payment. The improvements offer DRBA the flexibility to quickly adapt to traffic conditions and easily change the toll collection signs indicating which form of payment is acceptable in each toll lane.

What We Did

As the project’s engineer of record, Gannett Fleming provided electrical, structural, and civil engineering services for this design-build ITCS installation. The firm prepared the electrical and civil construction documents for the removal of the old equipment and installation of the new conduit, cable, fiber infrastructure and tolling equipment, as well as for the removal and replacement of pavement in every lane. Working with Xerox State and Local Solutions, now Conduent, which provided the system technology, the team performed a field survey at the plaza before construction began to identify conduit routing. The survey also showed that the existing sign brackets were still in good condition and could be reused. 

Gannett Fleming developed a traffic control plan so traffic could move safely through the plaza and across the bridge during construction. Because only one of the toll lanes had been built to handle oversize loads, the creative plan featured a way to accommodate oversize vehicles whenever that lane was closed.

Key Features

  • 13 toll lanes equipped to handle various payment methods and improve traffic flow
  • New toll collection system complete with toll tag readers, violation enforcement system cameras, vehicle detection loops, and overhead vehicle classification sensors ensure tolling accuracy
  • Updated electrical wiring, conduit, cabinets, and treadle curb junction boxes meet current electrical code.

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