Laserfiche WebLink
4 <br /> <br />Use a nominal bearing pressure of 1500 psi to size the footing <br />for the fuel island piers. The footings should have a plan size <br />of at least 4 by 4 feet. <br /> <br />Place the foot'ings for the fuel island piers on at least 18 inches <br />of compacted granular fill similar to that specified in 3. above. <br />The granular fill may be placed in excavations recessed into the <br />site fill or placed directly on the compacted surface of the <br />existing fill. <br /> <br />Provide at least 6 inches of compacted granular fill under the <br />convenience store floor slab. Provide at least 12 inches of <br />similar material under the fuel island slab. Additional fill <br />material may be placed under the slab as required to raise <br />elevations for drainage. <br /> <br />Paved Areas. <br /> <br />Pavement design was beyond the present scope of work. However, we have <br />provided below some comments related to parking lot and access drive <br />construction. <br /> <br />We understand that existing pavements sections consisted of 3 inches of <br />asphalt followed by 3 inches of crushed rock and 12 inches of compacted <br />pit run gravel. We recommend that you maintain the same pavement section <br />for the proposed construction areas, unless you anticipate significantly <br />different vehicular traffic. CBR or R-value tests should be run on subgrade <br />soils if you plan to reduce the pavement section. <br /> <br />The areas that are to be paved should be prepared as specified under <br /> <br />Site Preparation. Any areas that appear to be soft or which rut during <br />compaction should be excavated and backfilled with granular fill material. <br />Compact all base and subbase materials to at least 95% relative compaction <br />(ASTM D-698). <br /> <br /> <br />