Specifications include, but are not limited to: labor, fuel, transportation (mobilization and demobilization), tools, supplies, pipe, liner grout, hydraulic concrete for bulkheads, PVC pipe for venting, supervision, insurance and incidentals as well as traffic control measures ;It is assumed that jacked pipe will be equivalent in size to the existing pipe or enlarged slightly (3"-6" increase in diameter) only to take into account countersinking, and will not require additional screening. ; Existing pipes shall be rehabilitated by the insertion of a smooth wall steel pipe into a host pipe. Where required, pipe shall be joined by butt welds in accordance with AWWA C-206. The Contractor shall pressure inject a nonshrink grout into the annular space between the existing host pipe and the steel liner. The annular space between the existing pipe and the smooth wall steel liner shall not exceed 3 inches at any given point, and placed as low as possible in the existing pipe.