Laserfiche WebLink
LEIGHTON CONSULTING, INC. <br />General Earthwork and Grading Spedfications <br />prior to fill placement. A licensed surveyor shall provide the survey control for <br />determining elevations of processed areas, keys, and benches. <br />3.0 Fill Material <br />3.1 General <br />Material to be used as fill shall be essentially free of organic matter and other <br />deleterious substances evaluated and accepted by the Geotechnical Consultant <br />prior to placement. Soils of poor quality, such as those with unacceptable <br />gradation, high expansion potential, or low strength shall be placed in areas <br />acceptable to the Geotechnical Consultant or mixed with other soils to achieve <br />satisfactory fill material. <br />3.2 Oversize <br />Oversize material defined as rock, or other irreducible material with a maximum <br />dimension greater than 8 inches, shall not be buried or placed in fill unless <br />location, materials, and placement methods are specifically accepted by the <br />Geotechnical Consultant. Placement operations shall be such that nesting of <br />oversized material does not occur and such that oversize material is completely <br />surrounded by compacted or densified fill. Oversize material shall not be placed <br />within 10 vertical feet of finish grade or within 2 feet of future utilities or <br />underground construction. <br />3.3 Import <br />If importing offill material is required for grading, proposed import material shall <br />meet the requirements of Section 3.1. The potential import source shall be given <br />to the Geotechnical Consultant at least 48 hours (2 working days) before <br />importing begins so that its suitability can be determined and appropriate tests <br />performed. <br />4.0 Fill Placement and Compaction <br />4.1 Fill Layers <br />Approved fill material shall be placed in areas prepared to receive fill (per <br />Section 3.0) in near-horizontal layers not exceeding 8 inches in loose thickness. <br />The Geotechnical Consultant may accept thicker layers if testing indicates the <br />grading procedures can adequately compact the thicker layers. Each layer shall be <br />spread evenly and mixed thoroughly to attain relative uniformity of material and <br />moisture throughout. <br />F-4 <br />SL Rvcd 2019.01.21