Call F03: Job JSL0053 Route I-270/I-255 ST LOUIS County. 7 Bridge rehabilitations at the I-255/I-55 Interchange, the total length of improvement being 0.699 miles.

The work includes roadway items such as brush clearing, removal of improvements, excavation, aggregate base, concrete pavement, curb, drain basin, rock blanket, slope protection, impact attenuators, changeable message signs, traffic control, temporary traffic barriers, pavement markings, mobilization, railroad plan submittal, surveying and staking, and slab jacking. Guardrail/guard cable items include MGS guardrail, vertical concrete barrier transitions, end anchors, bridge approach transitions, and crashworthy end terminals. Signal items include traffic signal maintenance and programming. ITS items include MoDOT ITS assets relocation. Bridge-specific work for seven bridges includes hydro demolition, removal of concrete wearing surface, deck repair, barrier removal, approach slab work, supplementary wearing surface material, latex modified concrete wearing surface, diamond grinding, barrier installation, substructure repair, full depth repair, cleaning and epoxy coating, reinforcing steel, protective coating, vertical drains, half-sole repair, epoxy pressure injecting, dowel bar retrofit, fiber reinforced polymer wrap, concrete crack filler, segmental expansion joint systems, and removal of existing bearings.