Specifications include, but are not limited to: The CONTRACTOR shall preserve, in operating condition, active utilities traversing the project site and shall protect property, including, but not limited to, valve boxes, poles, guys and other appurtenances. The CONTRACTOR shall, to the satisfaction of the utility concerned, repair any damage to any such utility, which is due to work under this Contract. Unless otherwise directed all sidewalks, driveways (from sidewalk to street) and curbs shall be preserved. The contractor will repair all damage to sidewalks, curb-cuts, and curbs. Except as otherwise provided herein, all buildings and structures including retaining and foundation walls, steps, piers and other artificial objects and obstructions shall be completely razed and removed to a depth of at least one foot below ground level.