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utility' s direction or by the utility, all to the satisfaction of the Engineer. Payment for protection of existing facilities shall be considered as included in the price paid for the various items of work and no additional compensation will be allowed therefor except as provided in the Standard Specifications. 6-15.02 Removal Methods Removal of existing improvements shall conform to Section 15-2 "Miscellaneous Highway Facilities" , these Special Provisions and as shown on the Plans. All portions of existing concrete to be removed shall be removed in a smooth, neat, vertical plane. Where expansion, contraction or construction joints are not present, the concrete shall be saw cut to a minimum depth of 1-1/2 inches. If an expansion, contraction or construction joint is within 3 feet of the concrete to be removed, the concrete shall be removed to that joint. Prior to final paving, all portions of existing pavement to be removed shall be cut on a neat, straight line. Pavement removed outside the removal line shall be cut parallel to and at right angles to the removal line. The face of the cut shall be smooth and shall not overhang the removal area. Drop hammers are not allowed. Jackhammers may be used if the cuts are overlapped and meet the above criteria. Where edges of remaining pavement are raised by the removal method used, they shall be flattened with a mechanical tamper prior to setting frames or replacing pavement. All removed material , unless otherwise specified, shall become the property of the Contractor and shall be disposed of outside of the right-of-way in accordance with the provisions in Section 7-1.13 "Disposal of Material Outside the Highway Right of Way" of the Standard Specifications. Payment for removal of existing improvements shall be in accordance with Section 15-2.07 "Payment" of the Standard Specifications. 6-19 FARTHWORK 6-19.02 Pipe and Tank Excavation and Backfill Excavation and backfill for pipe, tanks and miscellaneous structures shall conform to the provisions in Section 19.3 "Structure Excavation and Backfill" of the Standard Specifications and these Special Provisions. Pavement and concrete removal shall conform to Section 6.15-02 "Removal Methods" , of these Special Provisions. All excavation shall be made to the lines and grades shown on the plans. Where mud, peat or any unstable or objectionable material is encountered at or within 6 inches of the bottom of any excavation, such material shall be removed to a depth of at least 6.6 TANK6/TXTW.02M