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9/2/2020 <br /> <br />31 20 00 EARTH MOVING Page 9 of 13 <br />1. Stockpile soil materials away from edge of excavations. Do not store within drip line of <br />remaining trees. <br />2. No material may be stockpiled on adjacent properties, except as approved by the engineer <br />and adjacent property owner. <br />3. Any material that is determined to be excess material shall be removed from the site in a <br />timely manner. <br />4. Stockpiling of materials will be done in a manner as not to effect the progress of the project. <br />3.11 BACKFILL <br />A. Place and compact backfill in excavations promptly, but not before completing the following: <br />1. Construction below finish grade including, where applicable, subdrainage, dampproofing, <br />waterproofing, and perimeter insulation. <br />2. Surveying locations of underground utilities for Record Documents. <br />3. Testing and inspecting underground utilities. <br />4. Removing concrete formwork. <br />5. Removing trash and debris. <br />6. Removing temporary shoring, bracing, and sheeting. <br />7. Installing permanent or temporary horizontal bracing on horizontally supported walls. <br />B. Place backfill on subgrades free of mud, frost, snow, or ice. <br />3.12 UTILITY TRENCH BACKFILL <br />A. Place backfill on subgrades free of mud, frost, snow, or ice. <br />B. Place and compact bedding course on trench bottoms and where indicated. Shape bedding course <br />to provide continuous support for bells, joints, and barrels of pipes and for joints, fittings, and <br />bodies of conduits. See Plan Details <br />C. Backfill voids with satisfactory soil while removing shoring and bracing. <br />D. Initial Backfill: <br />1. Soil Backfill: Place and compact initial backfill of satisfactory soil, free of particles larger <br />than 1 inch in any dimension, to a height of 12 inchesover the pipe or conduit. <br />a. Carefully compact initial backfill under pipe haunches and compact evenly up on <br />both sides and along the full length of piping or conduit to avoid damage or <br />displacement of piping or conduit. Coordinate backfilling with utilities testing. <br />2. Controlled Low-Strength Material: Place initial backfill of controlled low-strength material <br />to a height of 12 inchesover the pipe or conduit. Coordinate backfilling with utilities <br />testing. <br />E. Final Backfill: <br />1. Soil Backfill: Place and compact final backfill of satisfactory soil to final subgrade <br />elevation. <br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03