Bridge No.73 Replacement-CR 50W Over Cobb Ditch

The project is located on CR50W that crosses Cobb Ditch at approximately 0.60 miles south of CR 600 S, Section 2, Township33 North, and Range 6 West in the Boone Township of Porter County, La Porte District, Indiana. The project consists of the replacement of an existing bridge with a new three-span bridge. The overall purpose of the project is to replace the existing structurally deficient bridge and improve the conveyance of Cobb Ditch under the bridge. The new superstructure shall consist of a reinforced concrete slab deck. The superstructure shall be supported on reinforced concrete abutments on steel H-piles and extended pile piers. A reinforced concrete bridge approach will be used behind both abutments. New approach roadway will consist of 4”of HMA on 10” of Compacted Aggregate No. 53 with Geogrid. Additionally, the approach road way will be widened 2 ft and earthwork is planned to not include fill for the roadway section. Drainage improvements include new ditches, a15-inch pipe is planned to be installed beneath the north side of the roadway, and an 18-inch pipe is planned to be installed on the northwest side of the bridge. The project will also include demolition and removal of the existing structure, and installation of the proposed structure.

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.