Specifications include, but are not limited to: Utilities: • Adjust existing sanitary manhole to grade. Highway: • Provide sediment and erosion control as detailed in the plans. • Set up work zone traffic control as detailed in the plans for each phase of construction. • Remove existing drainage structures and pipe. • Construct new drainage structures and pipe as detailed in the plans. • Full depth reconstruction with profile adjustment of Town Line Road over Interstate 90. • Reconstruct shoulders of I-90 and reset concrete barrier as detailed in the plans. • Install guide rail as detailed in the plans. • Build slope protection with geosynthetic reinforced soil system. • Provide signing and pavement markings as detailed in the plans. Bridge Elements: • Remove existing bridge superstructure and substructure to demolition limits shown on the plans. • Excavate existing embankment as required to provide bottom of footing elevation. • Construct reinforced concrete integral abutments and pier on HP pile foundations. • Erect steel girders totaling 228’ in length from centerline of abutment bearings to centerline of abutment bearings. All structural steel is ASTM A709 Grade 50. Structural steel shall be metalized, as described in the plans. • Construct a cast in place reinforced concrete superstructure slab, 67’-1” wide. • Construct concrete fascia barriers with snow fencing, concrete sidewalk, granite curb, approach slabs, and sleeper slabs. Restoration: • Grade, topsoil, and establish turf to limits of work. • Remove all contractor equipment and clean-up site.
