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Lock And Dam No. 8
Lock and Dam No. 8 is a Lock (water transport), lock and dam located near Genoa, Wisconsin on the Upper Mississippi River, Upper Mississippi River near river mile 679.2 in the United States. It was constructed and was put into operation by April 1937. The site underwent major rehabilitation from 1989 to 2003. The lock and dam are owned and operated by the Saint Paul, Minnesota, St. Paul District of the United States Army Corps of Engineers-Mississippi Valley Division. The dam consists of a concrete structure long with five roller dam, roller gates and 10 tainter gates. The earth embankment is long with two submersible spillways, long and long. The lock is wide by long. File:Genoa lock and dam 01.jpg File:Lock & dam.jpeg, Lock and Dam No. 8 File:Lock and dam 8 spill way.jpg, Lock and dam 8 spill way See also * Public Works Administration#Dams, Public Works Administration dams list * Upper Mississippi River National Wildlife and Fish Refuge External links U.S. Army Corps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Mississippi River
The Upper Mississippi River is the portion of the Mississippi River upstream of St. Louis, Missouri, United States, at the confluence of its main tributary, the Missouri River. History In terms of geologic and hydrographic history, the Upper Mississippi east and south of Fort Snelling is a portion of the now-extinct Glacial River Warren which carved the valley of the Minnesota River, permitting the immense Glacial Lake Agassiz to join the world's oceans at the Gulf of Mexico. The collapse of ice dams holding back Glacial Lake Duluth and Glacial Lake Grantsburg carved out the Dalles of the St. Croix River at Interstate Park. The Upper Mississippi River valley likely originated as an ice-marginal stream during the Pre-Illinoian Stage. The Driftless Area is a portion of North America left unglaciated at that ice age's height, hence not smoothed out or covered over by previous geological processes. Inasmuch as the Wisconsin glaciation formed lobes that met (and blocked) wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
