204RESHAPING AND GRADING EXISTING IMPROVEMENTS

216 price shall be full compensation for the work, complete in place, as specified herein and as shown on the project plans. The accepted quantities of s houlder build-up compaction, measured as provided above, will be paid for at the contract unit price per hour, which price shall be full compensation for the work complete, as herein described and specified. No additional measurement or direct payment will be made for the construction or compaction of temporary slope fillets, or for borrow used for shoulder build- up, the costs being considered as included in the price of shoulder build-up. IMPROVEMENTS: 204- 1 Description: The work under this section shall consist of reconstructing or restoring existing dikes, berms, and median slopes, including furnishing, placing , and compacting embankment material, as required, at the locations and in accordance with the details shown on the project plans, and the requirements of these specifications. 204- 2 Blank : 204- 3 Construction Requirements: Reconstructing or restoring shall be the rebuilding of existing improvements, at or near the same location, to either new lines, grades, and cross sections or to their original lines, grades, and cross sections as shown on the project plans. The reconstruction or restoring of dikes, berms, and median slopes shall be accomplished in accordance with the same requirements as for new work of equivalent type and character and conform to the applicable requirements of Section 203 of the specifications. 204- 4 Method of Measurement: Reshaping and grading existing improvements will be measured on a lump sum basis. 204- 5 Basis of Payment: The accepted quantities of reshaping and grading existing improvements will be paid for at the contract lump sum price, which price shall be full compensation for the work, complete in place, as described and specified herein. TABLE OF CONTENTS INDEX 217 SECTION 205 GRADING ROADWAY FOR PAVEMENT : 205- 1 Description: The work under this section shall consist of removing pavement, excavating, removal , and disposal of excess material, furnishing and placing embankment material, and all grading, shaping and compacting of materials necessary to construct the subgrade to the lines and grades shown in the plans and as depicted by the new pavement section specified and in accordance with the requirements of these specifications. 205- 2 Blank : 205- 3 Construction Requirements: 205- 3.01 General: All existing pavement shall be removed as designated on the project plans. Where new asphaltic concrete is to match existing bituminous surfaces, the edges of the existing bituminous surfaces abutting the new paving shall be either saw cut or wheel cut to a minimum depth of 1-1/2 inches to form a neat true line with straight vertical edges free from irregularities. Shoul d the contractor elect to wheel cut the edges, the cutter wheel shall be adequate for the work, in the opinion of the Engineer, to produce the desired result. If at the time of removing any portion of the existing roadway, in- place materials from which the new subgrade is to be constructed contain an excess of moisture, so that the required compaction cannot be obtained with reasonable and customary aeration and manipulation, the Engineer will determine the cause of such condition and will determine whether the material shall be further aerated or removed and replaced. If the cause of such condition is determined to have been unforeseeable and beyond the control of and without fault or negligence of the contractor, such further work shall be done as directed and will be paid for as extra work in accordance with the requirements of Subsection 104.02 of the specifications. Excess moisture caused by irrigation water, storm drainage, weather, breakage of mains, or other similar cause will be considered as within the responsibility of the contractor. 205- 3.02 Excavation: Excavation shall conform with the requirements of Subsection 203- 3 of the specifications. TABLE OF CONTENTS INDEX 218 205- 3.03 Embankment: The placement and compaction of embankment shall conform with the requirements of Subsection 203- 10 of the specifications. 205- 3.04 Compacting and Finishing: The top 6 inches of the subgrade shall be compacted to a density not less than 95 percent of the maximum density as determined in accordance with the requirements of the applicable test methods of the ADOT Materials Testing Manual, as directed and approved by the Engineer, except that when asphaltic concrete or Portland cement concrete is to be placed directly on subgrade, the required density shall be 100 percent. The surface of the subgrade shall be finished to a reasonably smooth and uniform surface and in reasonably close conformity to the lines, grades, dimensions , and cross section shown on the project plans or established by the Engineer. The finished surface of the subgrade shall not vary by more than 0.04 feet above or below the grade established by the Engineer except when Portland cement concrete pavement or asphaltic concrete pavement are to be placed directly on the subgrade, the finished surface shall not vary by more than 0.02 feet above or 0.04 feet below the established grade. 205- 4 Method of Measurement: Measurement of grading roadway for pavement will be made by the square yard of the area prepared and subsequently covered with a subbase, base, asphaltic concrete, or Portland cement concrete; however, when raised median islands are constructed, the area occupied by these islands will be included in the area measured for payment. Where the new pavement is not bounded by curb and gutter and additional shoulder work is necessary to construct the typical section shown in the project plans, such work shall be considered as incidental and the cost will be considered as included in the cost of the contract bid item Grading Roadway for Pavement. 205- 5 Basis of Payment: The accepted quantities of grading roadway for pavement, measured as provided above, will be paid for at the contract unit price per square yard for the work, complete in place, as specified herein and as shown on the project plans. TABLE OF CONTENTS INDEX 219 SECTION 206 FURNISH WATER SUPPLY : 206- 1 Description: The work under this section shall consist of either developing or obtaining an adequate water supply and furnishing all water required for the work. 206- 2 Blank : 206- 3 Construction Requirements: Material may be watered either at the source or on the roadway, at the option of the contractor. If the contractor elects to apply water to materials at the source, and these materials will subsequently be measured and paid for on the basis of weight, the contractor shall give the Engineer ample notice of its intentions. Prior to the application of w ater, the contractor shall furnish such equipment and labor as may be necessary to enable the Engineer to obtain samples for determining the in- place moisture in the materials. The difference in weight between the average in- place moisture content of the material prior to pre- wetting and the average moisture content of the material at the time of weighing will be deducted from the total weight of the material. 206- 4 Method of Measurement: The work described in this section will be measured on a lump sum basis . 206- 5 Basis of Payment: Payment for this work will be made at the contract lump sum price. No adjustment of compensation to the contract lump sum price for Furnish Water Supply will be made f or any increase or decrease in the quantity of water required, regardless of the reason for such increase or decrease. The cost of providing a water distribution system; the cost of delivering the water; and the cost of applying the water to aid the compaction of the materials will not be paid for directly but will be considered as included in the prices paid for the various contract items requiring water. When the bidding schedule does not contain a contract pay item for furnish water supply, full compensation for either developing or obtaining an adequate water supply and furnishing all water required TABLE OF CONTENTS INDEX