![]() Three companies whose principal business is the manufacture of dredges and dredge components were also visited. In all, field visits were made to 31 dredge operations. The research discussed here included field visits to a selected sample of mining dredge operations, an examination of dredge-related injury data in the files of the Mine Safety and Health Administration’s Health and Safety Analysis Center in Denver, and field visits to a selected number of nonmining dredge operations. Still, over the 10½-yr period that ended in June 1983 63 people were killed and almost a thousand injured in mining dredge operations in the United States. ![]() ![]() It is true that personal injury rates for dredge workers, normalized in terms of worker-hours, dredge operating hours, or tons of material moved, are lower than those for many other mining operations. It is generally assumed that dredge operations are “safe”-certainly much safer than other mining and construction operations to which they are usually compared. The data, covering the period 1933 to 1942, included those related to 36 fatalities and 3,700 injuries in dredge mining. He also reviewed 10 yr of accident data pertinent to such mining in the United States. ![]() In the 1940’s, we visited hydraulic and dredge mining operations in Alaska and California. ![]()
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