Specifications include, but are not limited to: Excavation below covered surfaces including but not limited to roadway surfaces, parking lot surfaces, sidewalks, curb, gutter, sidewalk ramps, and driveway ramps, cut material necessary to meet cut/fill slopes. This item also includes excavation of vegetation, decorative landscape materials such as timbers, decorative rock and bark, removal of trees <” in diameter, bushes, shrubbery, grass and turf, or other materials as required within the limits of construction as shown on the project plans. Decorative materials shall be stockpiled by CONTRACTOR to be used for landscape restoration. 3.4 TOPSOIL C. An appropriate volume of topsoil shall be stockpiled by CONTRACTOR and preserved to provide 4" layer of topsoil to be spread on areas of the project to be vegetated or for landscape restoration; 3.9 TRENCH EXCAVATION E. Backfill all trenches as soon as practicable, but not later than the end of each work day. Enough trench to facilitate the start of the next day’s operation may be left open so long as the trench is properly protected and barricaded.; 3.2 CUTTING TREE ROOTS F. For trenches within 10 ft of trees exceeding 18-inch caliper, CONTRACTOR shall pothole to identify any major roots (6 inches in diameter or larger) in the trench zone. Where possible, major roots shall be tunneled under.