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9/2/2020 <br /> <br />31 20 00 EARTH MOVING Page 2 of 13 <br />1. 24 inches outside of concrete forms other than at footings. <br />2. 12 inches outside of concrete forms at footings. <br />3. 12 inches beneath bottom of concrete slabs-on-grade. <br />4. In Trenches: 6 inches beneath the pipe and 24 inches wider than the nominal outside <br />diameter of the pipe. <br />5. In bulk excavation: actual measured quantity of the qualified rock required to be removed <br />to reach sub-grade in paving areas, or 6 inches below sub-grade in areas to be planted or <br />grassed. After rock is confirmed to be meeting the definition for rock below by the <br />geotechnical engineer, the contractor shall notify the Architect for classification and <br />quantity verification. <br />6. Over Excavated Rock: Base bid is to include all extra forming , reinforcing, dowels, <br />compacted soil fill, concrete, and or additional contract time necessary any construction in <br />any over excavated rock areas. <br />7. 12 inches below Road beds and Ditches. <br />1.4 DEFINITIONS <br />A. Backfill: Soil material or controlled low-strength material used to fill an excavation. <br />1. Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to <br />support sides of pipe. <br />2. Final Backfill: Backfill placed over initial backfill to fill a trench. <br />B. Base Course: Aggregate layer placed between the sub-grade and hot-mix asphalt paving, Portland <br />cement concrete, Portland Cement concrete sidewalk, or hot-asphalt sidewalk. <br />C. Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying <br />pipe. <br />D. Borrow Soil: Satisfactory soil imported from off-site for use as fill or backfill. <br />E. Drainage Course: Washed aggregate layer supporting the building foundation that also minimizes <br />upward capillary flow of pore water. <br />F. Excavation: Removal of material encountered above subgrade elevations and to lines and <br />dimensions indicated. <br />1. Undercut: Excavation below subgrade elevations or beyond indicated lines and dimensions <br />as directed by Geotechnical Engineer and replacement material will be paid for according <br />to Contract provisions for unit prices. <br />2. Bulk Excavation: Excavation more than 8 feet in width and more than 30 feet in length. <br />3. Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines <br />and dimensions without direction by Engineer. Unauthorized excavation, as well as <br />remedial work directed by Engineer, shall be without additional compensation. <br />G. Fill: Soil materials used to raise existing grades. <br />H. Rock: Rock material in beds, ledges, unstratified masses, conglomerate deposits, and boulders of <br />rock material that exceed 1 cu. yd. for bulk excavation or 3/4 cu. yd. for footing, trench, and pit <br />excavation that cannot be removed by rock-excavating equipment equivalent to the following in <br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03