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Delhi Community Center Library Renovations 10/13/2023 <br />Santa Ana, California <br /> <br /> <br /> 01 56 39 - 2 Temporary Tree and Plant Protection <br />C. Filter Fabric: Manufacturer's standard, non-woven, pervious, geotextile fabric of <br />polypropylene, nylon, or polyester fibers. <br />D. Chain Link Fence: Metallic-coated steel chain link fence fabric, 0.120-inch- diameter <br />wire size; 72 inches high, minimum; line posts, 1.9 inches in diameter; terminal and <br />corner posts, <br />2-3/8 inches in diameter; top rail, 1-5/8 inches in diameter; bottom tension wire, 0.177 <br />inch in diameter; with tie wires, hog ring ties, and other accessories for a complete <br />fence system. <br /> <br />PART 3 - EXECUTION <br />3.1 PREPARATION <br />A. Before construction begins, fertilize affected trees to improve tree vigor and health. <br />Soil analysis testing should be completed to assure fertilization with the appropriate <br />fertilizer products. <br />B. Temporary Fencing: Install temporary fencing located at or outside the drip line of <br />trees. <br />C. Protect tree root systems from damage due to noxious materials caused by runoff or <br />spillage while mixing, placing, or storing construction materials. Protect root systems <br />from flooding, eroding, or excessive wetting caused by dewatering operations. <br />D. Do not store construction materials, debris, or excavated material within the drip line <br />of remaining trees. Do not permit vehicles or foot traffic within the drip line; prevent <br />soil compaction over root systems. <br />E. Do not allow fires under or adjacent to remaining trees or other plants. <br />3.2 EXCAVATION <br />A. Do not excavate within drip line of trees. <br />B. Where excavation for new construction is required within drip line of trees, hand clear <br />and excavate to minimize damage to root systems. Use narrow-tine spading forks <br />and comb soil to expose roots. <br />1. Cut roots approximately 3 inches back from new construction. <br />2. Do not allow exposed roots to dry out before placing permanent backfill. Provide <br />temporary earth cover or pack with peat moss and wrap with burlap. Water and <br />maintain in a moist condition. Protect roots from damage until they are <br />permanently relocated and covered with soil. <br />3. Where utility trenches are required within drip line of trees, tunnel under or <br />around roots by drilling, auger boring, pipe jacking, or digging by hand. <br />4. Root Pruning: Do not cut main lateral roots or taproots; cut only smaller roots <br />that interfere with installation of utilities. Cut roots with sharp pruning <br />instruments; do not break or chop. <br />505 E Central Ave <br />#B11/6/2024