AK NPS DENA 10(49), Polychrome Pass Area Improvements

This project will require a significant amount of earthwork to realign the Denali Park Road to accommodate the new bridge. A cut side retaining wall is expected to be needed to construct the east side bridge abutment. Also, all work necessary to construct a 400 foot +/- long bridge across the Pretty Rocks landslide. This includes abutment preparation and construction, acquisition and assembly of the superstructure, temporary work platform, and erection of the bridge. The proposed contract action is for a design-build construction contract. The project will consist of spanning the active Pretty Rocks landslide with a 400 foot +/- long bridge. Ground anchors will likely be needed to stabilize the rock mass at the proposed bridge abutments to achieve acceptable Factors of Safety for global stability. The new bridge will also require realignment of the Denali Park Road and a significant amount of excavation at either end of the bridge; and possibly a retaining wall at the adjacent Perlite Landslide.

Bridge, New Construction.

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.