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SECTION 42115 <br />TREE PROTECTION AND TRIMMING <br />GENERAL <br />Description Of Work <br />Only those trees which are in the direct path of construction are to be removed. Contractor shall <br />make every possible effort to save any tree of four -inch diameter or larger, including minor <br />adjustment to the pipe routing. Changes pipe routing must be approved by the Engineer. Any <br />tree which is not designated for removal but which will significantly interfere with construction <br />shall be trimmed by a qualified tree surgeon. Contractor sh„" minimize tree removal and tree <br />trimming operations to as great an extent as possible. <br />Quality Assurance <br />Engage a qualified tree surgeon to perform the following work: <br />1. Carefully remove branches from trees as required for new construction; all wounded trees <br />shall be immediately treated. <br />Recommend procedures to compensate for loss of roots and perform initial pruning of <br />branches and stimulation of root growth where removed to accommodate new construction. <br />3. Perform tree repair work for damages incurred by new construction. <br />Job Conditions <br />Provide temporary fencing, barricades, or guards to protect trees and other plants which are to <br />remain from damage. <br />PRODUCTS <br />Materials <br />Tree Pruning Compound: Waterproof, antiseptic, elastic, and free of kerosene, coal tar, <br />Creosote, and other substances harmful to plants. Pruned or damaged trees shall be treated <br />with the following: <br />1. Pine treesJall soeciesl; A, mixture of twelve percent (12%) Benzene Hexachloride (BHC) <br />emulsifiable concentrate shall be mixed at the rate of one (1) pint BHC per gallon of #2 fuel <br />oil. Spray damaged area liberally. Spray the rest of the tree from ground level to a height of <br />six feet (6'). Spraying of damaged trees shall be completed within five (5) days after injury <br />occurs. <br />02115- 1 <br />D \DIVISION 2102115 Tree Protection and Drilling.doc <br />