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Building better bridges: Lehigh alumni recognized by NSBA

A group of structural engineers were recognized nationally for their on an innovative steel girder used to build a western Pennsylvania bridge.

The National Steel Bridge Alliance (NSBA), part of the American Institute of Steel Construction (AISC), gave a merit award for short span steel bridges to a team that included Lehigh’s Advanced Technologies for Large Structural Systems (ATLSS) Engineering Research Center.

The two-span bridge was a built by the Pennsylvania Department of Transportation (PennDOT). It supports traffic over the Tionesta Creek in the town of Lynch Village, located just over two hours northeast of Pittsburgh.

The team’s concrete-filled tubular flange girder (CFTFG) maintains the strength and safety of a conventional steel girder bridge while making it more efficient to construct, while supporting the inner structure of the bridge.

ATLSS director Richard Sause, and Bong-Gyun Kim ’05 Ph.D. developed the design concept for the Lynch Village Bridge. Sause, alongside graduate student Haiying Ma and Eric Putnam ’09, ’10 M.S. then worked with engineers from Michael Baker Jr. Inc. of Moon Township, Pa. and PennDOT, as well as general contractor Francis J. Palo Inc. of Clarion, Pa. on final design and construction.

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