Specifications include, but are not limited to: Brick or stone street pavers (including driveways, driveway aprons, and crosswalks) Retain in place except where technically infeasible. Historic materials will be reinstalled if salvageable. ; Brick or stone sidewalks (including footlaps) Retain in place except where technically infeasible. Historic materials will be reinstalled if salvageable. If replacement is necessary, new materials and design will match historic. ; Drainage structure cleaning, including catch basins, drop inlets, conflict boxes, manholes, etc. shall be performed in the areas selected and approved by the City. Only manholes / catch basins with large debris such as rocks, bricks, trash, tree limbs, etc. will require cleaning. Also, cleaning will be required if small deposits or water has accumulated at greater than or equal to 1/3 of the depth of the manhole / catch basin (measured from rim to invert of the lowest pipe).