Concrete Bridge-Tunnel Has No Deck
Paul A. deNapoli
|Issue:||"Civil Engineering Magazine", April 1977, n. 4 v. 47|
Engineers solve the problem of how to economically span a single track railroad without interrupting train traffic. Highway fill was placed over post-tensioned precast concrete arch sections placed over an operational railroad track. This method of construction proved cost effective and avoided any interference with railroad traffic. This design also permitted the engineer to carry the typical roadway section over the bridge thus avoiding the undesirable side effects of typical bridge decks.
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