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BACKGROUND The City has two annual projects designed to maintain roadway infrastructure: The Annual Street Resurfacing and Preventative Maintenance Project and the Annual Slurry Seal Project. The first project resurfaces various roadways by overlaying the existing pavement with a new layer of asphalt concrete, while the other project slurry seals a different set of roadways. The resurfacing project is considered a street reconstruction project, while the slurry project is a preventative maintenance project. Together, these projects are designed to maintain the City's roadway pavement condition. The Annual Street Resurfacing and Preventative Maintenance Project has two components. The street resurfacing component includes repairing distressed pavement areas, then installing a new layer of asphalt concrete from curb to curb over the existing pavement. This work is then followed by adjusting manholes and water valve boxes to grade, installing pavement markers, and installing traffic signal detector loops. The roadway preventative maintenance component includes preparatory work for the Annual Slurry Seal Project, CIP No. 21504. The preparatory work includes repairing pavement in isolated distressed areas and cleaning and sealing existing pavement cracks, which is typical work for paving contractors. The slurry seal project then seals the street surface from curb to curb. The preparatory work could be included in the slurry seal project; however, the slurry seal contractor would likely sub-contract the work out to a paving contractor, resulting in an additional mark-up cost to the City. While this requires more work for staff to coordinate the schedule of both projects, it results in an overall cost savings. DISCUSSION The first component of the project consists of resurfacing/reconstructing approximately 1.34 million square feet of pavement on the streets listed in the table below. The streets which will be reconstructed are also shown graphically in Attachment 2. The roadway reconstruction method utilized is dependent on the condition of the existing street section. The different reconstruction methods are described below: 1. Overlay (OL): This reconstruction method involves milling the edges of the existing pavement and placing a new surface course of 1.5 to 1.75 inches of new asphalt concrete over the top of the existing pavement. Milling the edges is necessary to conform the new overlay with the existing curb and gutter. 2. Overlay with Fabric (OL/F): This reconstruction method involves milling the edges of the existing pavement and placing a layer of paving fabric on the surface of the existing pavement prior to applying a new surface course of 1.75 inches of new asphalt concrete over the top of the fabric. Paving fabric is needed when the existing pavement has cracking caused by swelling and shrinking associated with heat and cool cycles. The paving fabric "bridges" these cracks that are only in the surface layer. Without the fabric, the cracks would quickly propagate to the surface of the new pavement. This is known as "reflective" cracking. 3. Pavement Milling and Overlay (Mill/OL): This reconstruction method involves the removal of the existing asphalt concrete surface layer of the entire street surface by milling, then applying 1.75 inches of asphalt concrete over the entire street surface. The milling of the entire street surface is necessary on streets upon Page 2 of 7