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<br /> I <br /> .. significantly less than the "life" of a roadway rehabilitated with a cold in-place recycling project as <br /> I described by the third option. It is therefore concluded that the option of cutting and patching <br /> I areas of the existing pavement followed by a bituminous overlay is not a viable option. <br /> I The third option is to perform a cold in-place recycling project. This type of maintenance project <br /> I was similarly discussed in October 1991 for Stowe Avenue between Cleveland Avenue and lake <br /> Johanna Boulevard. This option would address the entire existing pavement, rather than only <br /> I selected areas as described in the second option. We have discussed this type of project with Mr. <br /> Dan Schacht, Ramsey County Maintenance Engineer, who directs the County's Cold In-Place <br /> I Recycling (CIR) Program. The County's goal in starting this CIR program was to find a method <br /> to improve a roadway that would provide more benefit than an overlay, but at less cost than <br /> I complete reconstruction. Ramsey County has been very aggressive in constructing this type of <br /> , project and is encouraged by results of projects completed in the last few years. <br /> I The construction of a cold in-place recycling project on Round Lake Road West would consist of a <br /> four step process. The first step would be to pulverize the existing pavement, destroying the <br /> I existing crack patterns. This would reduce the amount of reflective cracking that would occur if <br /> I the street were simply overlaid. The second step would be to grade the pulverized surface to <br /> provide a standard street cross-section, typically a 2 % crown. During this step, additional asphalt <br /> I emulsion is added to the pulverized bituminous material. The amount of asphalt emulsion to be <br /> added would be determined by laboratory testing of the existing pavement. The third step is to <br /> I compact the pulverized material by standard mechanical methods to establish a roadway with a <br /> I uniform cross section. The fourth and final step of the CIR process is to place a two to four inch <br /> 6 <br /> I <br />