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<br /> <br />Transverse Structural System (Ribs) <br />The Bridge Park requires elevation differences for the upper and lower levels (See Bridge Park Concept <br />Typical Section). Transverse rib elements will be made continuous across the bridge section with <br />reinforcing steel passing through the spine webs. The ribs consist of cast-in-place concrete diaphragms <br />within and between FUBs. Precast concrete cantilever brackets will extend from the spine. The bottom <br />elevation of these transverse members will be one-foot four-inches above the bottom of the FUB to avoid <br />conflict with any prestressing strands. Ribs are redundant with multiple load paths provided by <br />continuous slabs and edge wall systems. The rib system creates a shallower and less intrusive bridge <br />appearance since the ribs are integral to the spine and not stacked on top of the beam elements. <br /> <br />72-inch FDOT Standard Florida U Beam (FUB 72) <br />H&H-Designed Johnson Street Bridge with Rib Elements Supporting Pedestrian Walkway