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Nl +' � ' NN IN H r el IN NN Wo IN SUBARTICLE 320- 5 . 3 . 1 (Page 246) is deleted and the following substituted : 320-5 .3 . 1 Steel-Wheeled Rollers : Provide compaction equipment capable of meeting the density requirements described in these Specifications . In the event that density testing is not required, provide a tandem steel-wheeled roller weighing 5 to 15 tons for seal rolling, and for the final rolling, use a separate roller with a weight of 5 to 15 tons . Variations from these requirements shall be approved by the Engineer. 327 MILLING OF EXISTING ASPHALT PAVEMENT — CONSTRUCTION. (REV 1 -2640) (FA 2-240) (740) ARTICLE 327 -3 (Paged 248-249) is deleted and the following substituted : 327-3 Construction . 327-3 . 1 General : Remove the existing raised reflective pavement markers prior to milling. Include the cost of removing existing pavement markers in the price for milling. When milling to improve rideability or cross slope , remove the existing pavement to the average depth specified in the plans , in a manner that will restore the pavement surface to All a uniform cross- section and longitudinal profile . The Engineer may require the use of a stringline to ensure maintaining the proper alignment. Establish the longitudinal profile of the milled surface in accordance with the milling plans . Ensure that the final cross slope of the milled surface parallels the surface cross slope shown on the plans or as directed by the Engineer. Establish the cross slope of the milled surface by a second sensing device near the outside edge of the cut or by an automatic cross slope control mechanism . The plans may waive the requirement of automatic grade or cross slope controls where the situation warrants such action . Operate the milling machine to minimize the amount of dust being emitted. The Engineer may require prewetting of the pavement. Provide positive drainage of the milled surface and the adjacent pavement . Perform this operation on the same day as milling . Repave all milled surfaces no later than the day after the surface was milled unless otherwise stated in the plans . If traffic is to be maintained on the milled surface prior to the placement of the new asphalt concrete, provide suitable transitions between areas of varying thickness to create a smooth longitudinal riding surface . Produce a pattern of striations that will provide an acceptable riding surface . The Engineer will control the traveling speed of the milling machine to produce a texture that will provide an acceptable riding surface . Prior to opening an area which has been milled to traffic , sweep the pavement with a power broom or other approved equipment to remove, to the greatest extent practicable , fine material which will create dust under traffic . Sweep in a manner that will minimize the potential for creation of a traffic hazard and to minimize air pollution . Sweep the milled surface with a power broom prior to placing asphalt concrete . In urban and other sensitive areas , use a street sweeper or other equipment capable of removing excess milled materials and controlling dust. Obtain the Engineer ' s approval of such equipment, contingent upon its demonstrated ability to do the work. - 64- FPID (S ) : 423186 - 1 - 5 8 -01 x a fTM xNN s x , . 1 , , , _ _ . . ,¢ NNls. '+.