Under an open-end agreement with Pennsylvania Department of Transportation District 3-0, RETTEW prepared preliminary engineering, final design, and a final cost estimate within 1 percent of the bid for the...
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Replacing this twin-barrel arch bridge on a heavily traveled corridor posed significant challenges because of the limited crossings of the waterway and the need to maintain traffic flow. RETTEW designed...
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RETTEW worked with Lancaster County for more than a decade to prioritize rehabilitation and replacement of their structurally deficient bridges. The Big Conestoga #1 Bridge was the last remaining bridge...
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RETTEW performed the design of this $3.1 million overhead bridge project carrying Nissley Drive (renamed Baker Avenue as part of the project) over the turnpike mainline. We completed an alternative...
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This was the pilot bridge replacement project for the Pennsylvania Turnpike Commission’s (PTC) Bridge Information Modeling (BIM) and Digital Delivery Program, which included developing a 3D model. The existing bridge...
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RETTEW was selected by Lancaster County to provide bridge engineering as well as environmental and construction services for the rehabilitation and painting of Big Conestoga #9 Bridge on Rock Hill...
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As part of our Engineer of Record position with Lancaster County, RETTEW was responsible for rehabilitating this historically sensitive iron truss structure to address issues flagged in routine inspection reports....
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This existing 58-foot-long steel I-beam bridge in Cheltenham Township was structurally deficient and needed to be replaced because of excessive deterioration. In fact, throughout the course of designing the new...
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Two small bridges in West Cocalico Township, one over Little Cocalico Creek and one over a tributary to Cocalico Creek, were deteriorating and needed repairs. Horseshoe Trail Road Bridge was...
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The SR 2047 (U.S. 219 Business) Bridge over Flaugherty Creek is a stone masonry arch bridge listed on Pennsylvania’s Historic Bridge Inventory, and was deemed structurally deficient after 100 years...
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