Resolutions-1997-021

B. See Figure 5-2 for typical intersection joint detail for P.C.C. pavements 5.15 PAVEMENT MATERIAL AND THICKNESS A. The pavement slab shall be constructed of non-reinforced Portland Cement Concrete conforming to the IDOT specifications C-3 mix or M-3 mix or an Asphalt Cement Concrete mixture conforming to IDOT specifications. B. The minimum required pavement thicknesses are as follows: <table> <tr> <th>Street Class</th> <th>Portland Cement Concrete</th> <th>Asphalt Cement Concrete</th> </tr> <tr> <td>Arterial</td> <td>9-inches MIN.</td> <td>10-inches MIN.</td> </tr> <tr> <td>Collector</td> <td>8-inches</td> <td>9-inches MIN.</td> </tr> <tr> <td>Industrial (streets and cul-de-sacs)</td> <td>8-inches</td> <td>9-inches MIN.</td> </tr> <tr> <td>Residential (streets and cul-de-sacs)</td> <td>7-inches</td> <td>8-Inches MIN.</td> </tr> </table> Pavement thickness and subgrade requirements are intended as a guide. Arterial street projects shall be designed on the basis of soil conditions and projected traffic loadings. 5.16 SUBGRADE AND FILL SECTION REQUIREMENTS A. The subgrade shall be scarified to a depth of 6-inches below the pavement and compacted to 90% of Modified Proctor Density. B. All fill sections shall be compacted to IDOT Type A limits. C. Some soils may require the use of a drainable base and tile system constructed to IDOT standards. Pavement construction on fully hydric soils or slopes exceeding 8% will require a drainable base and tile system. See Table 5.2 for a list of fully hydric soils. Pavements on other soils will be evaluated on a case-by-case basis. Pavement tile systems may be used for sump pump discharge tiles required by Part 9, Storm Sewers and Stormwater Management Facilities. D. Industrial street subgrades shall include a minimum of 12-inches of Special Backfill materials unless otherwise determined by City Engineer. 5.17 AREA BETWEEN THE SIDEWALK AND THE CURB (PARKWAY) A. The parkway shall slope to the street at a rate of \( \frac{1}{2} \) of an inch vertical per horizontal foot. B. In residential areas, the parkway shall be grassed except in such areas that the parkway is so narrow that grass does not grow well. In these narrow