Specifications include, but are not limited to: 1.Method A – Jacked Pipe InstallationPipe will be measured and paid for in units of linear feet of “Jacked and Bored Pipe”. The Contractor shall select and use pipe having a design strength and wall thickness sufficient to withstand the jacking operation and maximum height of fill to be encountered along the length of the pipe. Construction shall be performed in such a manner that the pavement surface above the pipe line does not have more than ½ inch of settlement when measured with a 10-foot straightedge. The hole shall be bored mechanically with a suitable boring assembly designed to produce a smooth, straight shaft and operated so that the completed shaft will be at established line and grade. The bore holes shall be mechanically produced. The boring shall be accomplished by using either a pilot hole or a dry bore method. The Contractor shall apply even pressure to all jacks during jacking operations. Provide suitable bracing between jacks and the jacking head so that pressure shall be applied to the pipe uniformly around the ring of the pipe. The jacking head shall be of such weight, construction, and dimensions that it shall not bend or deflect when full pressure is applied at the jack. The jacking head shall be provided with an opening for the removal of excavated material as the jacking operation proceeds. The Contractor shall set the pipe to be jacked on guides that are straight and securely braced together in such manner as to firmly support the section of pipe and to direct it in the proper line and grade as jacking operations proceed. The Contractor shall replace or repair pipe that is damaged during jacking operations at his own expense. Joints shall be butt welded so as to be watertight as installation progresses.All existing pipe that are replaced by the jack & bore method will be abandoned by filling the pipe completely with flow able fill.2.Method B – Category C – High Density Polyethylene (HDPE) or Polypropylene PP Slip LinersSlip Liners shall be installed in accordance with the requirements of AASHTO M326 or in accordance with ASTM F1698 as applicable, or as recommended by the liner manufacturer. All Slip Liners must be on the VDOT Approved Products listing meeting the requirements of AASHTO M330.3.Method C – Smooth Wall Steel Pipe LinerSmooth Wall Steel Pipe liner shall be rehabilitation by the insertion of a smooth wall steel pipe intothe existing host pipe. Where required, liner pipe shall be jointed by butt welds in accordance with AWWA C- 206. The Contractor shall fully grout the annular space between the existing host pipe and the steel liner with cement grout from an approved source and mix design. Prior to grouting, the annular space shall be sealed at each end of the host pipe. Holes required to facilitate injecting grout shall be plugged and sealed following grouting operations. In order to ensure stability during placement, the wall thickness of the liner shall not beless than ½ inch.