Vertical Lift Railroad Bridge Repairs, Cape Cod Canal, Buzzards Bay, Ma

The substructure is labeled abutment A, pier B, pier C and abutment D from south to north. The total length of the bridge is 806 feet from center-to-center of abutment bearings and supports a single railroad track on an open timber tie deck. All spans are composed of riveted steel through trusses. The main lift span is 544 feet, center-to-center of live load bearings. The following items to be included in the design package: Replacement of lower span lock/gear box assembly on the North and South piers. Replacement of the existing 5HP, 3Ø, 460V lower span lock motor on both the North and South Piers and replacement of the existing motor disconnect switch. The project may also include the replacement of associated conductors for the motor control. This replacement effort would remove and replace the existing pullbox and control conductors, while allowing the existing limit switches to remain; this replacement effort will be a combination of conduit and flexible industrial grade cables. To be confirmed with project office. The environmental conditions require that all replacement electrical materials to be NEMA 4X stainless steel enclosures, PVC coated rigid steel conduit, and industrial approved control cabling. Replacement of North and South pier wear plates (2 on each side) to their original thickness. Replacement of the upper and lower Southeast guide rollers and associated bearings, guide roller shaft, adjustment flange, and any locking/mounting hardware are all to be replaced. The other six East/West lateral guide rollers are to be assessed and adjusted if required to be within defined operational tolerances.

Bridge, Renovation.

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.