2130 E 4th St - REV 1 - Plan - Laserfiche WebLink

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Fill Materials benching. The Geotechnical Consultant is not responsible for erroneously located, fills, subdrain systems, or excavations. General: Earth material to be us ed as c ompacted fi ll should to a large extent be free of organic matter and other deleterious substances as e valuated and accepted by the Geotechnical Consultant. Oversize: Oversize material is rock that does not break down into smaller pieces and has a maximum diameter greater than 12 inches. Oversize rock shall not be included within compacted fill unless specific methods a nd guidelines acceptable to the Geotechnical Consultant are followed. For examples of methods and guidelines of oversi ze rock placement see the enclo sed Oversize Rock Disposal Detail. The inclusion of oversize materials in the compacted fill shall only be acceptable if the oversize material is completely surrounded by compacted fill or thoroughly jetted granular materials. No ove rsize material shall be placed within 10 vertical feet of finish grade or within 2 feet of proposed utilities or underground improvements. Import: Should imported earth materials be required, the proposed import materials shall meet the requirements of the Geotechnical Consultant. Well graded, very lo w expans ion po tential e arth mate rials f ree of o rganic matter and other deleterious substances are usually sought after as im port materials. However, it is generally in the Owners best interest that potential import earth materials are provided to the Geotechnical Consultant to determine their suitability for the intended pur pose. At least 48 hours should be allotted for the appropriate laboratory testing to be performed, prior to starting the import operations. Fill Placement and Compaction Procedures Fill Layers: Fill materials shall be placed in areas prepared to receive fill in nearly horizontal layers not exceeding 8 inches in loose thickness. Thicker layers may be accepted by the Geotechnical Consultant, provided field density testing indicates that the grading procedures can adequately compact the thicker layers. Each layer of fill shall be spread evenly and thoroughly mixed to obtain uniformity within the earth materials and consistent moisture throughout the fill. Moisture Conditioning of Fill: Earth materials to be placed as compacted fill shall be watered, dried, blended, and/or mixed, as needed to obtain relatively uniform moisture contents that are at or slightly above optimum. The maximum density and optimum moisture content tests should be performed in accordance with the American Society of Testing and Materials (ASTM test method D1557‐00). 2130 E 4th St 2/11/2025