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Essayons was at least the third vessel of that name to serve with the U.S. Army Corps of Engineers and the second dredge. An earlier Essayons was built in 1868 to dredge the mouth of the Mississippi. "Essayons" is the motto of the Corps. It is a French word which means "Let us try."
The Goldstream Dredge No. 8 cut a 4.5-mile (7.2 km) track and produced 7.5 million ounces of gold. [2] The dredge was named a Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers in 1986. [2] In 1984, it was listed as a historic district on the National Register of Historic Places. [1] Today, it is open to ...
The previous Essayons was a hopper dredge commissioned on January 16, 1950, and retired in May, 1980. [4] [13] The name was given to a Corps of Engineers tug, which was built in 1908 and retired in 1949. [14] A yet earlier vessel, a "dredge-boat" named Essayons, was built for the Army Corps of Engineers in 1868. She was used to keep the mouth ...
A drywasher is like a highbanker, [clarification needed] since it uses a motor and a form of sluice, but it has no need for water. It drywasher operates by the use of air. [ 1 ] By forcing air to flow up through the material as it moves down the sluice, the heavier materials, like gold , will stay at the bottom and get trapped by the riffles ...
The dredge pumps are powered by two Tier II MTU 12V 2000 P12 Diesel engines which produce 805 horsepower each. [6] She has a bow thruster to improve maneuverability, which is powered by a Tier II MTU Series 60 Diesel engine which generates 425 horsepower. [10] The ship is crewed by 40 civilian mariners.
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 ...