Specifications include, but are not limited to: The successful bidder will be responsible for the permitting and diversion of Rabbit Slough around the work area. Next working pads (contractor to supply fill material) will have to be created to support construction activities). The existing track structure will have to be removed (lifting it as a single piece), and then excavating and removing the existing pipe. The existing pipe becomes property of the Contractor, who is responsible for removing it from ARRC property. The new pipe will require welding and trimming prior to installation as it is in two each 33’ pieces currently. All welds shall meet American Welding Association (AWS) D1.1 Structural welding- steel specification. Contractor will bed and backfill the steel pipe with type-A non frost susceptible material. with proper compaction techniques to a minimum of 95% standard Proctor, to a point 26” below the existing Top of Rail elevation. Contractor will then place and compact a 12’” lift of ARRC supplied Ballast (at Birchwood) on the grade and lift rail panel into place for final fitting by railroad forces.