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Aulik Associates <br /> Project BL-04-06716 <br /> October 11, 2004 <br /> Page 8 <br /> Another alternative for reducing frost heave is to support the steps or slabs on frost-depth footings. A <br /> void space of at least 4 inches should be provided between the bottoms of the steps/slabs and ftost- <br /> susceptible soils to a11ow the soils to heave without affecting the steps/slabs. <br /> C.8. Site Grading and Drainage <br /> We recommend the site be graded to provide a positive ruiroff away from the proposed carriage home. <br /> We recommend landscaped areas be sloped a minimum of 6 inches within 10 feet of the carriage home <br /> and slabs be sloped a minimum of 2 inches. In addition,we recommend gutters and downspouts with <br /> long splash blocks or extensions. If deep fills are proposed over swamp deposited soils,the swamp <br /> deposited soils are likely to undergo long term settlement. Therefore, consideration should be given to <br /> the continuing settlement of the site soils and adequate slope should be provided to maintain drainage as <br /> settlement occurs. <br /> C.9. Utilities <br /> The on-site ganular soils at typical invert elevations are judged to be directly suitable for utility support. <br /> If some of the utilities terminate in soft uncontrolled fill(blow counts less than 4)or swamp deposited <br /> soils, some additional subcutting and replacement with sands or crushed rock may be required to prepare <br /> a proper subgrade for invert support. We recommend utility trenches not be constructed under footings <br /> or within the zone of influence of footings (1:1 area). <br /> We recommend bedding material be thoroughly compacted around the pipes. We recommend trench <br /> backfill above the bedding be compacted to a minimum of 90 percent in landscaped azeas and 95 percent <br /> beneath proposed slabs and pavements. The exception being with 3 feet of proposed pavement subgrade, <br /> where 100 percent of standard Proctor density is required. <br /> Assuming typical utility depths of 5 to 15 feet below grade, dewatering with well points may be <br /> necessary for utility installations. We recommend a contingency be provided for dewatering. <br /> D. Construction <br /> D.1 Ezcavation <br /> It is our opinion that the previously-placed fill and native soils encountered by the borings can be <br /> excavated with a backhoe or front end loader. In addition,the use of a backhoe with a smooth-edge <br /> bucket will help to minimize soil disturbance of the underlying soils during stripping opaations. The <br />