furnishing all work necessary for the construction of a new pedestrian underpass under the Union Pacific Railroad at the Uptown Amtrak Station, Joliet Sub MP 124.10, connecting a proposed North Plaza and South Plaza. The improvements include excavation and construction of a proposed box culvert underpass structure. The box culvert work includes expedited construction of the underpass using precast sections, built under staged construction with the closure of one track per stage. Work also includes the addition of a tiered seating area in the South Plaza with a performance space, trail and decorative lighting, retaining walls, landscaping, removal and replacement of the Amtrak platform, MEP work, fiber installation, a pump station to ensure drainage for the underpass and plazas, and all other work required to complete the project according to the plans and specifications. A location map is shown on the cover of the construction plans.
