{"c":"53-7031.00","n":"Dredge Operators","d":"Operate dredge to remove sand, gravel, or other materials in order to excavate and maintain navigable channels in waterways.","g":"53","tasks":[{"t":"Move levers to position dredges for excavation, to engage hydraulic pumps, to raise and lower suction booms, and to control rotation of cutterheads.","core":true,"id":15177,"r":81,"dt":"06/2008","src":"Incumbent"},{"t":"Start and stop engines to operate equipment.","core":true,"id":15178,"r":80,"dt":"06/2008","src":"Incumbent"},{"t":"Start power winches that draw in or let out cables to change positions of dredges, or pull in and let out cables manually.","core":true,"id":15179,"r":81,"dt":"06/2008","src":"Incumbent"},{"t":"Pump water to clear machinery pipelines.","core":true,"id":15180,"r":81,"dt":"06/2008","src":"Incumbent"},{"t":"Lower anchor poles to verify depths of excavations, using winches, or scan depth gauges to determine depths of excavations.","core":true,"id":15181,"r":78,"dt":"06/2008","src":"Incumbent"},{"t":"Direct or assist workers placing shore anchors and cables, laying additional pipes from dredges to shore, and pumping water from pontoons.","core":true,"id":15182,"r":81,"dt":"06/2008","src":"Incumbent"}]}