Surface Smoothness. The surface course, upon completion of final rolling, shall be smooth and true to grade and cross-section. When a 12-foot straightedge is laid on the surface parallel with the centerline, the surface shall not vary more than 1/8 inch from the straightedge. When the 12-foot straightedge is laid on the surface transverse to the centerline between the crown and edge of pavement, the surface shall not vary more than 1/4 inch from the straightedge. Low or defective areas shall be immediately corrected by cutting out the faulty areas and replacing with fresh hot mixture and compacting the area to conform to the remainder of the pavement. Testing for plan grade conformance and surface smoothness shall be preformed by the Contractor in the presence of a representative of the City Engineer. Tests shall be made at intervals as directed by the City Engineer. The City Engineer may direct the contractor to diamond grind areas that are out of tolerance in lieu of above replacement.
Surface Smoothness. 36 The completed surface of all courses shall be of uniform texture, smooth, uniform as to 37 crown and grade, and free from defects of all kinds. The completed surface of the 38 wearing course shall not vary more than ⅛ inch from the lower edge of a 10-foot 39 straightedge placed on the surface parallel to the centerline. The transverse slope of the 40 completed surface of the wearing course shall vary not more than ¼ inch in 10 feet from 41 the rate of transverse slope shown in the Plans. 42 43 When deviations in excess of the above tolerances are found that result from a high 44 place in the HMA, the pavement surface shall be corrected by one of the 45 following methods:
Surface Smoothness. 1. The Contractor will test finished surface of each asphalt concrete course for smoothness, using a 10 foot straightedge applied parallel to and at right angles to centerline of paved areas
Surface Smoothness. The second sentence in the fourth paragraph of this section is deleted and replaced with the following: The completed surface of the wearing course shall not vary more than 1/4 inch from the lower edge of a 10-foot straightedge placed on the surface parallel to centerline.
Surface Smoothness. Check surface tolerance as specified in Section 1047.3(h)4.
Surface Smoothness. 3.14.1 The finished surfaces of the pavement shall be uniform in appearance, free from irregularities in contour and texture and shall present a smooth-riding surface. Smoothness evaluation applies to all hot mix asphalt concrete roadways receiving 1.5 inch or more in plan (compacted) thickness of HMA pavement. Tests for conformity with the specified crown and grade shall be made by the Contractor immediately after initial compaction. Any variation shall be corrected by the removal or addition of materials and by continuous rolling. The finished surface of the pavement, when measured with a 10-foot straightedge, shall not vary more than 1/4 inch for the surface course and 3/8 inch for the intermediate course measured perpendicular and parallel to the centerline. If, in the opinion of the Engineer, the surface visually appears wavy, but meets the surface tolerance test with the 10-foot straightedge, the Engineer reserves the right to additionally test with the use of Inertial Profile Equipment which records cumulative vertical deviations per unit length using a statistic called International Roughness Index (IRI). The City of Manchester upset limit for IRI is set at 135 in/mile using similar equipment that NHDOT specifies in their Quality Assurance HMA projects. After the completion of final rolling, the smoothness of the course shall again be tested; humps or depressions exceeding the specified tolerances shall be immediately corrected by removing the defective work and replacing with new material, as directed by the Engineer. This shall be done at the Contractor's expense. Skin patching will not be permitted. When profile corrections are required, the Contractor shall use one or more of the following corrective methods:
Surface Smoothness. Finished surface of each hot-mix asphalt course will be tested for compliance with smoothness tolerances.
