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thicknesses shall be used: Round pavement thickness calculations up to the nearest <br />1/2inch. <br />Classification Minimum Thickness <br />Alleys 7 inches <br />Accessways <br />7 inches <br />Local Streets without Bus Route <br />7 inches <br />Local Streets with Bus Route <br />8 inches <br />Collector Streets <br />9 inches <br />Arterial Streets <br />10 inches <br />The designer shall provide a jointing plan for PCC paving of streets in the construction <br />drawings showing the transverse and longitudinal joints in the concrete pavement to <br />control cracking. The jointing plan shall be drawn to scale and show at a minimum, <br />manholes, valve boxes, inlets and other structures, curb and gutter, joint layouts, dowels, <br />tie bars and other reinforcement where required. The jointing plan shall also include a <br />title, legend, engineer's stamp, general notes, joint details and sawing depths. Joint layout <br />shall be designed in accordance with American Concrete Pavement Association (ACPA) <br />recommendations and requirements contained in this section. The designer shall <br />minimize or eliminate joints that intersect another joint at the pavement edge at an acute <br />angle. The designer shall avoid angles of less than 60 degrees. No skewed joints shall be <br />allowed within mainline paving areas. Joints shall be saw cut, except as required by the <br />Standard Specifications. Alley joints may be tooled. <br />Transverse contraction joints shall be spaced at relatively equal spacing between joints <br />and shall be close to the same spacing as the longitudinal joints so that the panels are <br />relatively square. Spacing between transverse joints shall not exceed 15 feet for PCC 7 <br />inches or more in thickness. The length to width ratio for any panel shall be at least 0.75 <br />and shall not exceed 1.25. <br />Longitudinal joint spacing shall not exceed two times (2x) the slab thickness in feet up to <br />a maximum of 15 feet, see below for examples: <br />PCC Thickness Maximum Joint Spacing <br />7 inches 14 feet <br />8 inches or thicker 15 feet <br />PCC street paving shall either be reinforced pavement or shall be "plain" PCC with dowels <br />and tie bars to reinforce the joints. Dowel bars shall be placed across the transverse joints <br />and deformed tie bars shall be placed across longitudinal joints. In intersections, dowel <br />Public Improvement Design Standards Manual, 2016 Page 2-37 <br />