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Warren County, Ohio

The Jeremiah Morrow Bridge carries I-71 over the Little Miami River between Columbus and Cincinnati, Ohio. The new bridge replaces a deck truss bridge built in 1965. The two new cast-in-place segmental concrete box girder structures provide for three 12′ lanes of traffic in each direction. The project consists of twin, parallel concrete segmental bridges 2,252′ in length. The new northbound and southbound bridges have typical span lengths of 440′ and end spans of 229′ and 270′. The widths of each concrete box girder superstructure are 55′, and vary in depth from 12′ to 25′. The 200′ tall cast-in-place piers have a hollow box shape at the base and twin walls at the upper portion. The superstructure is built in balanced cantilever using self-advancing form travelers.

Corven Engineering Role: Corven Engineering provided segmental bridge construction engineering services to Kokosing. This work included the development of integrated shop drawings for the cast-in-place superstructure segments; construction analysis; post-tensioning stressing data; step-by-step erection procedures; review of falsework design; geometry control manual; three dimensional segment geometry and casting software; engineering support during construction.

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