SCDOT SC-7 Bridge Replacement, Charleston, SC

SCDOT SC7 Bridge Replacement
Charleston, SC

Prior to construction of the massive South Carolina Port Access Project in Charleston, two significant bridges in the area that spanned the primary railroad corridor were in dire need of renovation. US 78 at King Street extension and Rivers Avenue was an old aqueduct bridge built in the late 1920s and the SC-7 Bridge (Cosgrove Avenue), which was constructed in the mid-1950s. Because the SC-7 bridge was the detour for the US 78 bridge closure, the bridges had to be built linear – three years later and despite demolition of half of the existing structure over three live railroad tracks and an existing operational concrete plant, the project bridge and its profile achieved signature status.