BOLTON- BOXBOROUGH- HARVARD- LITTLETON- PAVEMENT PRESERVATION ON I-495

This project consists of milling and placing a Ultra Thin Bonded Overlay on Interstate 495 in the towns of Berlin, Bolton, Boxborough, and Harvard. Additional work includes adjusting drainage structures, repairing guardrail, and new pavement markings. The project begins at the Berlin/Bolton town line (mm 67.6±). The project ends at the Boxborough/Littleton town line (mm 77.0±). The total length of this project is approximately 9.4 miles. The bridge work consists of full depth pavement removal, joint rehabilitation, full depth and/or partial depth deck repairs, and railing/parapet repairs. Joint rehabilitation work will be required for all bridge joints, and, in general, consists of slab-over backwall construction at all abutments and a pre-compressed seal joint at all piers. The locations of full and partial depth deck repairs will be as directed by the Engineer. There are also several locations where the existing bridge railing is either damaged, or missing, and requires replacement in-kind.