Specifications include, but are not limited to: Preconstruction survey and as-built plans; •Site preparation, site access and staging area development; •Design, furnishing and installing temporary structures; •Design, furnish, install, maintain and remove erosion control measures, temporary dewatering and stream diversion measures; •Removal and disposal of existing steel deck beam, timber deck single track railroad bridge located at MP 14.42 of the Middleboro Subdivision in Taunton, MA; •Removal and disposal of existing stone abutments and wingwalls; •Remove and dispose of existing timber retaining walls; •Remove and stockpile existing streambed substrate for reuse as backfill as backfill in riprap channel through culvert; •Furnish and install crushed stone base course wrapped in geotextile filter fabric •Design, procurement and installation of new reinforced precast concrete box culvert, wingwalls, wingwall footings, and cutoff walls at MP 14.42; •Furnish and install cast-in-place concrete wildlife passage shelf inside culvert and rip-rap between box baffles; •Furnish and Install compacted gravel borrow backfill behind wingwalls and sides of box culvert; •Furnish and install geoweb approach slabs under trackbed on either side of the box and 2” ballast mat on over the box culvert