Specifications include, but are not limited to: The project consists of Concrete slab replacement and Concrete pavement preservation activities in various locations on I 81 NB/SB from Exit 185 (Central Scranton Expressway) to Exit 186 (E Drinker Street) & on I 84 E/W from I 81 to Exit 2 (Elmhurst, PA 435) in the City of Scranton and Dunmore Borough, Lackawanna County. Concrete Slab Replacement includes the removal of existing concrete slabs, installation of subbase, new pavement joints, pavement patching joints, and new precast concrete slabs, regular concrete or accelerated concrete, based on location. Pavement preservation activities include dowel bar retrofits, sealing of the longitudinal and transverse joints, and diamond grinding of the new concrete pavement for a smoother ride. All work is confined to the existing highway. There will be no guiderail work, signing work, rumble strips, or shoulder work.