All street cuts shall be made, and backfilled in accordance with the following specifications and requirements.
(A) All work described in this subchapter shall be subject to the inspection, direction and approval of the authorized representative of the Department of Public Works. Twenty-four hour notification shall be provided to the general foreman of the Town Department of Public Works prior to cutting of any pavement.
(B) The replacement of pavement shall not be less than 12 inches of bituminous mixture, thoroughly compacted in lifts of not more than three inches, consisting of 11 inches of bituminous base mixture with one inch of bituminous surface mixture. A “Wacker-Rammer” compactor or equivalent shall be used for compacting the bituminous mixtures.
(C) If the street requested to be cut consists of a bituminous overlay on top of a concrete pavement, then the pavement replacement shall be no less than nine inches of high early strength concrete placed so the top elevation of the new concrete is the same as the top elevation of the original concrete pavement, and the portion of the pavement replacement from the top of the new concrete pavement to the present pavement elevation shall consist of a bituminous base mixture, thoroughly compacted plus at least one inch of bituminous surface mixture properly compacted. A “Wacker-Rammer” compactor or equivalent shall be used for compacting the bituminous mixtures. The sub-grade on which the concrete is to be placed shall be compacted thoroughly prior to placing the concrete.
(D) Cutting in cement concrete pavement shall be performed as follows: the trench or area to be removed shall be outlined with drilled holes spaced no more than six inches apart or, in the alternative, the trench or area to be removed may be saved to the bottom of the steel mesh with a minimum depth of two inches. Breakage of the concrete shall be limited to and confined within said lines. After removal of all the waste the edge of the area of concrete shall be such that the maximum variation from the vertical plane of the sides of the cut concrete will not exceed one and one-half inches. When trimming and straightening these edges, it may be necessary to use hand methods, and hand methods shall be used if necessary to comply with this subchapter. Methods and equipment used in cutting, breaking and removal shall not cause any substantial or material breakage, excessive shattering or spalling of the concrete which is to be left in place, and said methods and equipment used shall be such that will not cause any substantial material or excessive vibration and shock to be transmitted along reinforcing steel to the adjacent pavement. The depth of the replaced concrete pavement shall be the same as the removed pavement, provided that it shall be a minimum of nine inches.
(E) The sub-grade upon which the concrete shall be placed shall be compacted thoroughly prior to the placing of the concrete upon the roadway. The concrete used shall be high early strength as set out in subsection 501.03(c) of the Standard Specifications of the State Highway Commission, except that test beams shall not be required.
(F) All cuts in the pavement area shall be open to traffic at all times except when the contractor is working at the site. If the cut in the pavement cannot be completed prior to the completion of work during each working day, the cuts shall be temporarily backfilled with a compacted aggregate base material or covered with a steel plate of sufficient size and thickness to safely carry the traffic. The steel plate shall be properly fastened down so as not to create any safety hazard for vehicles traveling upon it. A steel plate shall also be used to cover any concrete area during the curing period for such concrete.
(G) All material or matter from the excavation of all cuts in the pavement area shall be removed from the right-of-way. The backfilling of this area shall be compacted aggregate base or “B” borrow. This backfill shall meet all State Highway Commission Standard Specifications.
(1991 Draft Code, § 7-63) (Ord. 12-77, passed 12-27-1977)