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Dredge No. 4 (Hän: Lëzrą Kä̀nëchà "s/he is looking for money") is a wooden-hulled bucketline sluice dredge that mined placer gold on the Yukon River from 1913 until 1959. It is now located along Bonanza Creek Road 13 kilometres (8.1 mi) south of the Klondike Highway [ 1 ] near Dawson City , Yukon , where it is preserved as one of the ...
Gold Dredge, Klondike River, Canada, 1915 The Yankee Fork dredge near Bonanza City, Idaho, which operated into the 1950s. A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s.
Yaquina hit an uncharted rock ledge while dredging a channel in the Umpqua River on July 27, 1990 which tore a 5-foot by 8-foot hole in its hull. Several compartments flooded and the ship settled into the mud. [18] She was towed to Portland for repairs. [27] She ran aground and was holed while dredging in Willapa Bay, Washington on August 9, 1997.
The Fairbanks Exploration Company Gold Dredge No. 5 was a historic gold mining dredge in a remote area of Fairbanks North Star Borough, Alaska, north of the city of Fairbanks. It was last located on Upper Dome Creek, shortly northeast of the mouth of Seattle Creek, about 20 miles (32 km) north of Fairbanks, [4] prior to its being scrapped c. 2012.
The dredge could process over 10,000 short tons (9,100 t) of sand per day, and had a 141-foot (43 m) suction pipe that could work in 115 feet (35 m) of water. [2] The dredge is currently sunk into shallow water, and canted over to one side. [4] Most of the superstructure and the large boom are visible above the waterline. [4]
The Yuba Goldfields, also known as the Hammonton dredge field, is the largest gold dredge field in California. Located along the Yuba River approximately 6–12 miles (10–20 km) upstream of the town of Marysville, in Yuba County, the Hammonton dredge field was actively dredged for gold from 1904 [1] to 1968. [2]
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Instead, new private dredges took on more work and became more capable, and older Army Corps of Engineers dredges were retired. [ 23 ] [ 24 ] By 1980, private vessels rivaled Essayons in capability. Further, Essayons , with its large crew, had become economically uncompetitive as dredging technology advanced over 30 years.