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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 analysis to replace this rigid-frame structure with a two-span bridge and accommodate future widening of the mainline. In addition to the structure design, RETTEW developed…
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This is the pilot bridge replacement project for the Pennsylvania Turnpike Commission’s (PTC) Bridge Information Modeling (BIM) and Digital Delivery Program, which includes developing a 3D model. The existing bridge was a single-span steel beam bridge, and we are proposing a two-span composite prestressed spread box-beam bridge. This project is part of a $1.5 million…
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In 2021, Quarryville Borough received total grant funding of $20,000 through WalkWorks, a partnership between the Pennsylvania Department of Health and the Pennsylvania Downtown Center, and the Pennsylvania Department of Conservation and Natural Resources to develop an active transportation plan for the Borough. Active transportation is any self-propelled, human-powered mode of transportation, such as walking…
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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 Road. Construction involved minor structural repairs to the masonry pier, steel handrail and stringers, and painting the entire superstructure. RETTEW specified an innovative Termarust© paint…
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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. We provided services for roadway and bridge design; performed environmental due diligence; developed erosion and sediment control plans; and provided bid documents, construction administration, and…
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Based on a previously prepared roadway safety audit, Pennsylvania Department of Transportation (PennDOT) District 8-0 requested safety enhancements at 13 locations along a 3.9-mile-long section of SR 0241’s two-lane roadway. Improvements included enhancing sight distance; updating signage, signals, and pavement markings; improving the alignment to eliminate an S-curve; and modifying an intersection to incorporate a…
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The Pocono Raceway, a major tourist attraction, draws huge crowds of motorsports fans. During special events, traffic is restricted to one lane on SR 0115, creating problems for local residents and obstructing emergency vehicles. The intersection of SR 0115 and SR 0903 is unconventional and has become a high-crash area. The area is environmentally sensitive,…
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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 bridge, numerous emergency repairs were needed to keep the bridge in service. The bridge is in a high-traffic area prone to flooding, so extra caution…
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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 previously closed because of collapsed abutments, and Mill Road Bridge was restricted by a steel plate over a portion of the failed deck. These failing…
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SR 0056, a four-lane limited-access highway that winds through the heart of the City of Johnstown, required rehabilitation. The project included multiple repairs to concrete and bituminous roadway, three bridges, and two retaining walls, and it needed to be completed in an aggressive timeframe. A rockslide at the north end of the project closed the…
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RETTEW NEWSROOM
Check out our latest updates on industry trends, corporate news, employee accomplishments, and community support.
Go to NewsroomCritical Infrastructure: What’s at Stake?
Societal and economic systems help make the world go round. Everyone uses energy, communication, water, and other infrastructure…
Read MoreRETTEW Board of Directors Member Changes
Mark Lauriello, our CEO Emeritus, is retiring from RETTEW sometime this year, and consequently, he has stepped down…
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