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Bridge 1-813 carries approximately 90,000 vehicles a day on northbound and southbound Interstate 495 in Wilmington, Delaware. After transverse rotations were observed causing median barriers to be out of alignment by as much as 17 inches, Pennoni’s Intelligent Infrastructure Systems (IIS) provided emergency inspection and monitoring to determine the cause. It was determined that a large earth embankment placed adjacent to the structure, caused compression of the underlying soft soils and lateral pressure on the bridge foundations. Tilt sensors were installed to continuously monitor rotations via real-time data collection. The bridge was re-opened to traffic within two months.
Pennoni provided civil/site services for the I-95 CAP project along the Delaware River Waterfront. The I-95 Central Access Philadelphia (I-95 CAP) pro...
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Pennoni provided structural engineering and construction administration services to support the development of a mixed-use property on Front Street in...
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Pennoni provided structural design, and construction administration services for this 4-story, 10,000-SF mixed-use, multifamily apartment building in ...
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