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West Donegal Township closed Newville Road Bridge in the 1990s because of excessive corrosion in its asphalt-filled metal deck pans. After receiving federal funding administered through the Pennsylvania Department of Transportation (PennDOT) for the project, the Township selected RETTEW to develop a new bridge and approach roadway that met both PennDOT and Amtrak design criteria….
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Closed to traffic for more than three years following an inspection that deemed it unsafe, residents and community members of German Township had to avoid the Harrison County Road 51 Bridge and travel miles out of their way to get to their homes, schools, and businesses. The detour not only delayed emergency responders to the…
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After being deemed structurally deficient due to its age and deteriorating condition, Quimby Bridge — a concrete encased steel beam bridge built in 1915 on Pusey Mill Road over the east branch of Big Elk Creek — was in need of replacement. One of the many challenges surrounding this site was its environmental sensitivity, including…
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Eden Road Bridge — also known as Big Conestoga #7 — had a deteriorating bridge deck, failing abutments, cracking structure, rotation, and settlements that were all significant concerns. Since the bridge is one of the most heavily-traveled bridges owned by the County, it was becoming more and more critical for them to replace it. As…
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The SR 0038 Bridge over Connoquenessing Creek was a 76-foot-long concrete T-beam bridge deemed structurally deficient by the Pennsylvania Department of Transportation (PennDOT). Because of noticeable surface erosion and deterioration, and foundational issues caused by heavy traffic volume and faulty drainage, PennDOT decided to replace the defective bridge. They turned to RETTEW to design the…
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The SR 0611 Bridge was severely deteriorated and deemed structurally deficient, and the required replacement bridge involved complex environmental analysis. Many sensitive features were present around the bridge including a county park, a scenic highway, the Delaware Canal State Park, an aqueduct bridge carrying the Delaware Canal over Fry’s Run, and a stone-arch bridge listed…
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The existing SR 0722 Bridge and dam over Lititz Run was integral in the operations of the nearby Oregon Mill, which is listed on the National Register of Historic Places. Structurally deficient and functionally obsolete, however, the existing SR 0722 Bridge needed to accommodate modern-day traffic demands. The backwater condition resulting from the dam served…
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Built in 1916 as a one-lane, reinforced-concrete tied-arch structure carrying Auction Road over Big Chiques Creek in Penn and Rapho Townships, Auction Road Bridge was one of only four reinforced-concrete through-arch-style bridges remaining in the commonwealth eligible for listing on the National Register of Historic Places. However, the historically significant structure was no longer able…
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This food manufacturer was looking to expand their plant with various site and facility improvements. After RETTEW completed a 3D model of the proposed improvements under a previous contract, the client engaged us for this first phase of design. The project includes a new hygienics building, relocation of the existing engineering building, and relocation of…
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Our client, the largest wholesale fertilizer distributor in the northeast and mid-Atlantic, wanted to expand their feed mill at its current location, rather than moving operations to a new site. The plan allowed the client to use an existing rail spur and realize cost savings in the expansion process. The construction needed to take place…
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Read MoreRETTEW to Host Preventing Falls in Construction Program on May 7
Join us for an informative and engaging event as part of OSHA’s 2024 National Safety Stand-Down. This hybrid gathering…
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