01643nam 2200397 450 991071692830332120211119082232.0(CKB)5470000002526915(OCoLC)1285681485(EXLCZ)99547000000252691520211119d2018 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierAvoiding underground utilities during horizontal directional drilling operations /Occupational Safety and Health Administration[Washington, D.C.] :Department of Labor, Occupational Safety and Health Administration,2018.1 online resource (7 pages) color illustrationsSafety and health information bulletin ;SHIB 03-13-2018Includes bibliographical references.Underground utility linesUnited StatesSafety measuresDirectional drillingNatural gas pipelinesUnited StatesSafety measuresPublic utilitiesUnited StatesEquipment and suppliesSafety measuresUnderground utility linesSafety measures.Directional drilling.Natural gas pipelinesSafety measures.Public utilitiesEquipment and suppliesSafety measures.United States.Occupational Safety and Health Administration,GPOGPOBOOK9910716928303321Avoiding underground utilities during horizontal directional drilling operations3348682UNINA