The pile drivers, dock builders, and marine divers work on buildings, bridges, tunnels, docks, wharves, and other land- and water-based structures. They direct cranes; install large, heavy timbers in many settings; and often cut, join, and fasten metal elements using welding equipment and oxy-acetylene torches. Marine divers work in a team of dive-tenders and dock builders to do full-time underwater construction.
Timbermen are shorers and sheet workers, core drillers, wood tank workers, and hod hoist carpenters. Timbermen perform the shoring and sheeting work for all underground utility projects, including sewer, water main, telephone, electric lines, and subway projects. Core drillers do all test borings, shot drilling, soil samples and monitoring of water tables for prospective construction sites, providing valuable information to everyone connected to the future worksite. Wood tank Workers manufacture, install, maintain, and clean the cooling towers and tanks of most NYC buildings. Hod Hoist Carpenters erect and maintain the material and personnel hoists on construction sites.
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