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Association for Bridge Construction and Design (Pittsburgh Chapter)
Information and resources for bridge design, bridge technology, and historic bridges.
National Steel Bridge Alliance - NSBA
Industry organization of businesses and agencies interested in the development, promotion and construction of cost effective steel bridges. Provides publications, software, and newsletter archive.
Post-Tensioning Institute - PTI
Research, specifications, design recommendations and provision of publications and education. Features conferences, seminars and workshops, and software.
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