Rehabilitation work will include shoring, re-pointing and re-bedding joints, and re-setting stone masonry for the downstream end of the southern barrel. Other work required for this project includes: erecting temporary traffic control measures, sawcutting pavement above the arch, placing excavation support, excavating existing native fills, and placing a light-weight reinforced cast-in-place concrete backing on the arch, repaving repair to match existing grades and removing all temporary traffic control and superstructure shoring measures.