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A=COM 4.6.1 Keep tools and strand devices clean and in good repair to prevent failure. 4.6.2 Do not permit employees to stand in line or directly over the jacking equipment during tensioning operations. Provide signs and barriers to prevent employees from working behind the jack. Shield all jacking equipment and attachment pieces to protect the workers performing the stressing operations. 4.6.3 Carefully stack stressed members on a level base. 4.6.4 Pre-stressed girders and beams are often unstable when tipped; brace during transportation and handle in such a way to keep the member upright. 4.6.5 Handle stressed members at pick points specifically designated on the manufacturer's drawings, and with the lifting devices recommended by the manufacturer or the engineer in charge. 4.6.6 Do not allow personnel under stressed members during lifting and erection. 4.6.7 Keep anchor(s)turned up close to the anchor plate during jacking operations of any tensioning element(s). 4.6.8 Frequently inspect pulling heads, bolts, and hydraulic rams for indication of fatigue, and the threads on bolts and nuts for diminishing cross section. 4.7 Pre-Cast Concrete and Tilt-Up Operations 4.7.1 Do not permit employees under pre-cast walls, panels, or sections while they are being lifted or tilted into position. 4.7.2 Use properly attached tag lines, especially if the load is to be lifted and moved into place. 4.7.3 Adequately brace pre-cast walls or vertical concrete panels during construction. 4.7.4 Securely attach braces or shores to the concrete member. 4.7.5 Confirm lifting inserts on or in tilt-up pre-cast concrete members are capable of supporting at least two(2)times the maximum intended load applied or transmitted to them. 4.7.6 Confirm lifting hardware can support at least five(5)times the maximum intended load applied or transmitted to the lifting hardware. 4.8 Masonry Work 4.8.1 Handle and store masonry building materials in accordance with AECOM procedures for material handling; scaffolds for masonry construction shall be built in accordance with the AECOM procedures for scaffolding. 4.8.2 Equip power saws for cutting brick or stone with dust collectors or wet cutting methods to control dust.The exhausted dust will be directed away from vehicle or personnel traffic. If brick, stone, or mortar contains more than 1 percent crystalline silica, respirators may be required until air sampling determines that the task does not constitute a potential respiratory hazard. 4.8.3 Employees cutting brick or stone shall wear approved safety goggles or face shields over safety glasses, and hearing protection as appropriate for the task noise levels. 4.8.4 Keep mortar tubs free from ragged edges that may cut the hands, legs, and arms of bricklayers. 4.8.5 Properly brace all walls or vertical surfaces during construction to withstand wind and other pressure. 4.8.6 Dried mortar will not be dropped from planks, crushed by vehicles, or otherwise handled in such a manner as to create a dust hazard. 4.8.7 Masons and other workers with dusty clothes shall remove their outer clothing or otherwise remove masonry-generated dust from their clothes prior to leaving the work area for breaks or end of work. Do not use high-pressure air to remove dust. Concrete(S3AM-338-PR1) Revision 1 July 31,2019 PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. Page 4 of 5