CASE STUDY Delaware: Urgent Action on Bridge The Delaware Department of Transportation (DelDOT) notified Intelligent Infrastructure Systems (IIS) and Pennoni of the need for an emergency, hands-on inspection of the superstructure and substructure of Spans 11 through 14 and Pier 15 of Bridge 1-813. The bridge, located in Wilmington, Delaware, is composed of twin structures carrying northbound and southbound Interstate 495 traffic. It features independent multi-beam superstructures and independently supported hammerhead piers under each half of the structure and carries 90,000 vehicles per day. Within 40 minutes of being alerted to the problem by DelDOT, IIS engineers were on site to assess the condition of the bridge. Trans- verse rotations up to 4 percent from their original posit

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