280 (a) equal to or greater than 5.0 when using a fine milling cutting drum for a single course overlay, or
b.equal to or greater than 2.2 for a single course overlay, or
c.equal to or greater than 1.8 for multiple course overlays. 190 Frequency of macrotexture testing shall be a minimum of once per day and shall be described in the QCP. The cross slope shall not vary more than 1/8 in. when measured with a 10 ft straightedge. If shoulders or turn lanes are not milled and the overlay material is not placed in the milled areas within the same day, drainage slots shall be provided to eliminate ponding of water. Milled traveled way areas left open to traffic for longer than five work days will 200 be assessed $1,600.00 per day per lane mile, or portion thereof, as liquidated damages, not as a penalty, but as damages sustained for each work day that the milled area remains open to traffic. Milled non-traveled way areas such as a uxiliary lanes and shoul ders left open to traffic for longer than 10 work days will be assessed $800.00 per day per lane mile, or portion thereof, as liquidated damages, not as a penalty, but as damages sustained for each work day that the milled area remains open to traffic. The transverse vertical cut face shall be transitioned by HMA or prefabricated 210 materials at a rate of 24:1 or as directed. 306.08 Asphalt Overlay Removal Asphalt removal shall consist of complete removal of an asphalt overlay by milling from a portland cement concrete or brick base and the satisfactory disposal of the milled materials. Minor amounts of asphalt pavement material bonded to a concrete base at joints or cracks may remain in place. If this material becomes displaced during subsequent operations, it sh all be removed. Minor amounts of asphalt pavement material bonded to a brick base may remain in place. Removal of minor areas of portland cement concrete or brick base during the milling operations is 220 acceptable. Milled areas shall be cleaned prior to reopening to traffic or before continuing construction operations. The transverse vertical cut face shall be transitioned by HMA or prefabricated materials at a rate of 24:1 or as directed.
306.09 Transition Milling Transition milling shall consist of cutting a wedge at the beginning and ending of 230 306.08
281 projects, and paving exceptions. The existing pavement shall be cut to provide a nearly vertical face of 1 1/2 in. or the minimum finished thickness of a course in accordance with 401.14, whichever is greater, for the termini of each overlay lift of base, intermediate, and surface. The existing pavement shall be milled at a rate of 720:1 or as directed to achieve the specified cut where the pavement transition overlay lifts differ from cut depth. The transverse vertical cut face shall be transitioned by HMA or prefabricated materials at a rate of 24:1 or as directed. Automatic control devices will not be required on surface milling equipment used for transitions cut off the traveled way. Cutting shall not damage any pavement that is to remain in place.
306.10 Method of Measurement
Approach milling, asphalt milling, asphalt removal, PCCP milling, scarification milling, profile milling, and transition milling will be measured by the square yard of the milled area. 306.11 Basis of Payment 250 Approach milling, asphalt milling, asphalt removal, PCCP milling, scarification milling, profile milling, and transition milling will be paid for at the contract unit price per square yard. Payment will be made under: Pay Item Pay Unit Symbol Milling, Approach ..................................................................... SYS Milling, Asphalt, ________ in. .................................................. SYS 260 thickness Milling, Aspha lt Removal ......................................................... SYS Milling, PCCP ________ in. ..................................................... SYS thickness Milling, Pr ofile .......................................................................... SYS Milling, Scarification ................................................................. SYS Milling, Transition ..................................................................... SYS The cost for castings removed and replaced at the Contractor’s option in accordance with 306.02 shall be included in the cost of the milling. 270 Any portion of the pavement that is damaged or removed outside the milling limits shall be replaced with no additional payment. The cost of tapering of vertical faces and removal of milled material from the project site shall be included in the cost of milling. 306.11 282 The cost of cutting of the surface c ourse shall be included in the milling. Furnishing and operating the 16 ft straight edge shall be included in the cost of 280 other pay items within this section.
Source: Indiana Standard Specifications, 2024 Edition. Pages 15–17 of 1,248.