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603284-001 <br />Representative samples of the actual subgrade materials should be <br />obtained and tested for R-Value following rough grading of the pavement <br />subgrade to confirm the pavement design sections. <br />Concrete sidewalks should be at least 4 inches and constructed per City <br />of Santa Ana Public Works Agency standards. Where crossing driveways, <br />sidewalk pavement should be the minimum JPCP thickness with <br />aggregate base course. <br />5.7.4 Interlockinq Pavers <br />Based on the guidelines of the Interlocking Paver Institute (ICPI Tech <br />Spec No. 4, Interlocking Concrete Pavement Institute Revised November <br />2010), the minimum pedestrian and vehicular pavements planned for <br />construction using Interlocking concrete pavers by Ackerstone and/or <br />Orco Block Products are as follows: <br />TABLE 9: INTERLOCKING CONCRETE PAVERS <br />FOR PEDESTRIAN TRAFFIC <br />Interlocking Pavers Sand Bedding Base Course <br />(mm)(inches)(inches) <br />60 1 4 <br />TABLE 10: INTERLOCKING CONCRETE PAVERS <br />FOR VEHICULAR TRAFFIC <br />Traffic Index (TI)Interlocking Sand Bedding Base Course <br />Pavers (mm)(inches)(inches) <br />TI fE8 <br />8 < TI < 9 <br />80 1 4 <br />80 1 6 <br />-30- <br />Leighton <br />SL Rvcd 2019.01.21