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<br /> "1 q 3 <br /> ....u <br /> 1926.650(8) OCCUPATIONAL SAFETY AND HEALTH <br /> STANDARDS AND INTERPRETATIONS <br /> \Õ\, SUBPART P- EXCAVATIONS, TRINCHING, AND SHORING <br /> ,~ <br /> '" <br /> ¡, <br /> .." 1926.650 - GENERAL PROTECTION REQUIREMENTS <br /> l .\ <br /> \ <br /> ,~ 1,-) Walkways, runways, and sidewalks shan set forth in Subpart E of this part. <br /> e kept clear of excavated matertal or other <br /> obstructions and no sidewalks shall be un. (f) Employees exposed to vehicular traffic <br /> dermined unless shored to carry a minimum shall be provided with and shall be instructed <br /> live load of one hundred and twenty.ñve 025) to wear warninlit' vests marked with or made <br /> pounds per square foot. of reflectorized or hilit'h visibility material. <br /> (b) If planks are used for raised walkways, (I) Employees subjected to hazardous dusts, <br /> runways, or sidewalks. they shall be laid par- gases, fumes, mists, or atmospheres de- <br /> allel to the length of the walk and fastened ñcient in oxYlit'en, shall be protected with <br /> tolit'ether alit'ainst displacement. approved respiratory protection as set forth <br /> iñ Subpart D of this part. <br /> (c) Planks shan be uniform in thickness and <br /> all exposed ends shall be provided with (h) No person shall be permitted under loads <br /> beveled cleats to prevent tripping. handled by power shovels, derricks, or hoists. <br /> To avoid any spilJa it'e employees shall be re- <br /> (d) Raised walkways, runways. and side- qui red to stand away from any vehicle beinlit' <br /> walks shall be provided with plank steps on loaded. <br /> stronlit' strinlit'ers. Ramps, used in lieu oflteps. (i) Daily inspections of excavations shall be <br /> shall be provided with cleats to inlure a safe <br /> walking surface. made by a competent person. If evidence of <br /> possible cave-ins or slides is apparent, all <br /> (e) All employees shall be protected with work in the excavation shall cease until the <br /> personal protective equipment for the pro- necessary precautions have been taken to <br /> tection of the head, eyes, respi1'ato1'1 organs. safeguard the employees. <br /> hands, feet, and other' 'partl of the body .. <br /> 1926.651 - SPECIFIC EXCAVATION REQUIREMENTS <br /> (a) Prior to opening an excavation. eft'ort or in the vicinity thereof at any time durin it' <br /> shall be made to determine whether under- operations. shall be removed or made safe <br /> it'1'ound instanations; i.e.. sewer, telephone. before excavating is be~n. <br /> water, fuel, electric tines. etc., win be encoun- <br /> teredo and if 10. where luch underground (e) The walls and faces of áU excavations in <br /> installations are located. When the excava. which employees are exposed to danger from <br /> tion approaches the estimated location of moving ground shall be ~arded by a shoring <br /> such an installation, the exact location shan system, sloping of the JrTound, 01' lome otheT <br /> be determined and when it is uncovered, equivalent meanl. <br /> proper supports shall be provided for the (tI) Excavations shall be inspected by a com- <br /> existing installation. Utility companies shall <br /> be contacted and advised of proposed work petent person after every rainstorm or other <br /> prior to the start of actual excavation. hazard-increasing occurrence. and the pro- <br /> tection against slides and cave.ins shall be <br /> (b) Trees. boulders. and other surface en. increased if necessary. <br /> cumbrances. located so as to create a hazard <br /> to employees involved in excavation work (e) The determination of the angle of repose <br /> 1921.651(e) 180 <br />