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| Bridges Now and Then posted "View of the Hawk Falls Bridge under construction. The image is from July 26, 1956." (Courtesy of the Pennsylvania State Archives) |
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| modjeski |
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| modjeski "The Hawk Falls Bridge Replacement Project is progressing, with construction estimated to commence in 2021. The replacement Hawk Falls Bridge will be a 720’ [219m] long steel structure featuring a 480’ [146m] deck arch span flanked by four 60’ [18.3m] deck plate girder spans. As with the current bridge, the new bridge will carry two traffic lanes in each direction, but it will also provide 12’ wide outside shoulders and 6’ wide median shoulders. Three welded, steel box arch ribs will be utilized to create an aesthetically pleasing structure that spans the deep Mud Run Valley located within Hickory Run State Park" |
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| modjeski_replacement "Nearly 3,500 tons of structural steel were used, with most external components made of uncoated weathering steel. This material blends with the site’s natural color palette and offers a durable, low-maintenance solution. Vierendeel struts between the arches, and the absence of spandrel column bracing creates a more open, graceful appearance, ensuring the bridge harmonizes with its surroundings." |
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| pahistoricpreservation, courtesy of the Pennsylvania Turnpike Commission "The bridge consists of a 738-foot [225m], three-span, continuous deck truss, with a single-span I-beam approach at each end. It was one of the tallest bridges on the Pennsylvania Turnpike system, with its road surface approximately 195 feet [59.4m] above Mud Run." The replacement was supposed to be done by 2025. I'm writing this in Apr 2026 and it is not done. |
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| rettew |
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| aisc |
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| hillintl |
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| lsc-pagepro "The arch ribs were erected using cranes located behind the abutments. Modjeski & Masters" |
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| lsc-pagepro "The arch rigs' box section had to be large enough for an inspector to walk upright wearing a hardhar. Theresa Davies" |
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