Blue Ridge Parkway - Laurel Fork Bridge Replacement

he purpose of this announcement is to determine the availability and capability of qualified sources for the replacement of Laurel Fork bridge located in Ashe County, North Carolina. The existing Blue Ridge Parkway (BLRI) Laurel Fork bridge is a 5-span, two-girder steel bridge with a cast-in-place concrete deck. It is 546 feet long, 28 feet wide, and was built in 1939. The bridge will be replaced with a precast concrete box girder segmental bridge. The work consists of removing the existing bridge, construction of substructure elements including installation of drilled shafts for foundation support, mass concrete placement for abutments and pier foundations, precasting concrete piers using match-casting and delivering them to the project site, and attaching cast-in-place concrete elements to the precast pier elements using steel formwork. The work also includes precasting, using match-casting, and installing the concrete box girder superstructure elements, Mechanically Stabilized Earth (MSE) walls with precast masonry blocks faced with stone masonry as wingwalls and stone masonry guardwalls. The work will be split into bid schedules as follows: Schedule A: The base contract will include removal of the existing bridge, construction of the new bridge’s substructure elements (drilled shafts, abutments and precast pier columns and cast-in-place elements), and precasting the concrete box girder superstructure. The work items will include clearing and grubbing, structure excavation, establishing temporary construction access roads including a temporary bridge and a traffic detour, structural concrete, reinforcing steel, reestablishing vegetation within limits of soil disturbance, and other miscellaneous work. Option 1 (Schedule B): The work will include installation of disk bearings, erection of the new precast box girder superstructure including ensuring the stresses during construction remain within AASHTO allowables, constructing the new approach slabs and bridge railing and abutment backwalls, MSE walls that will serve as abutment wingwalls, stone masonry faced concrete core guardwalls at the bridge approaches, installing stone masonry on the concrete abutments, installing waterproofing membrane on top of the precast box girder superstructure, paving bridge approaches and top of the concrete deck, removal of the temporary construction access roads and temporary bridge, reestablishing vegetation within limits of soil disturbance including plantings, roadway striping, resurfacing of the state’s access road at the end of the project, and other miscellaneous work.

Division 01 -	General Requirements, Vehicular Access and Parking, Traffic Control, Temporary Barriers and Enclosures.
Division 03 -	Concrete, Concrete Reinforcing, Precast Structural Concrete.
Division 05 -	Metals, Structural Steel Framing, Structural Steel for Bridges, Steel Joist Framing, Steel Joist Girder Framing.
Division 07 -	Thermal and Moisture Protection, Expansion Control.
Division 09 -	Finishes, High-Performance Coatings.
Division 10 -	Specialties, Signage, Traffic Signage.
Division 26 -	Electrical, Exterior Lighting, Lighting Poles and Standards, Roadway Lighting.
Division 31 -	Earthwork, Embankments, Erosion and Sedimentation Controls, Slope Protection, Gabions, Riprap, Special Foundations and Load-Bearing Elements, Driven Piles.
Division 32 -	Exterior Improvements, Bases, Ballasts, and Paving, Flexible Paving, Rigid Paving, Fences and Gates, Retaining Walls.
Division 34 -	Transportation, Bridges.