The concrete barricades are required to establish appropriate "clear zone” and are put in place by the USACE’s contractor prior to the work beginning. The area behind the barriers will be used as storage for excavated material, and with the narrow dimensions of the area, the work will abut the roadway very closely. Establishing the required clear zone for motorists necessitated placement of the barriers into a small section of the beginning of the turn lane, which then gradually flares back toward the shoulder as the lane continues onto northbound George Washington Highway North. These barricades prevent motorists from driving accidentally into an area where active excavation will take place. Unfortunately, due to the work occurring immediately adjacent to the west end of the bridge, there simply is not enough available shoulder area to set the barricades back further, and therefore they must occupy a section of the turn lane itself. The barriers are expected to remain in place to the end of the year, 2023.