WALTHAM- INTERSTATE MAINTENANCE & RELATED WORK ON I-95.

The I-95 resurfacing project begins at the Weston/Waltham town line (MM 40.65). The project then continues north in the town of Waltham ending at the Waltham/Lexington town line (MM 44.78). The length of project is 21,810-feet or 4.131 miles. The highway mainline with be resurfaced as well as the ramps within the limits of work. The work shall consist of: Full width 1.5 inch asphalt pavement micromilling and overlaying with hot mixed asphalt (HMA); 2.25 inch superpave intermediate and 1.5 inch asphalt rubber gap graded friction course. All mainline HMA courses (base, intermediate, friction) on this project shall be warm mix technology; Removing and discarding guardrail; Upgrading guardrail and end treatments; Excavating the existing median and replacing with a paved high speed shoulder with concrete tall wall safety shape barrier; Removing and discarding the existing median granite edging; Installing bridge rail to highway guardrail transitions; Adjusting and rebuilding drainage structures within the roadway surface; Installing hook lock frames and grates on existing and proposed catch basins; Installing drainage structures in the newly constructed high speed shoulder; Constructing storm water improvements including wet ponds and gravel detention basins; Handling, stabilizing, disposal and re-using of contaminated soils from the highway median; Installing anti-fatigue rumble strips on the high speed and low speed shoulders; Installing pavement markings and slotted pavement markers; Traffic management including temporary concrete barriers; Installing traffic data collection stations Installing replacing scored concrete with milled rumble strips; Placing pavement milling mulch for shoulders and incidental items of work as required by the Engineer.