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Lock and Dam No. 3: Red Wing, Minnesota: 796.9 675 feet Owned/operated by U.S. Army Corps of Engineers, Mississippi Valley Division, St. Paul District : Lock and Dam No. 4: Alma, Wisconsin
Lock and Dam No. 8 is a lock and dam located near Genoa, Wisconsin on the 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.
According to the US Army Corps of Engineers, the new dam and locks will reduce passage time to under one hour with the new system. [citation needed] Due to queuing at Lock and Dam Number 52 and Lock and Dam Number 53, it can take cargo traffic 15 to 20 hours each to transit the locks the Olmsted complex is intended to replace. [6]
The main lock is 1,200 feet (370 m) long and 110 feet (34 m) wide; the auxiliary is 600 feet (180 m) long and 110 feet (34 m) wide. The main lock has a vertical lift gate and a miter gate while the aux. lock has two miter gates. The dam is 1,160 feet (350 m) long with 9 tainter gates, each 110 feet (34 m) wide by 42 feet (13 m) high.
HPMS may refer to: Harbour Pointe Middle School, in Mukilteo, Washington, United States; Harrold Priory Middle School, in Bedfordshire, England; High proper motion star; Highway Performance Monitoring System, an annual report sent by each U.S. state's DOT to the FHWA
Lock and Dam No. 5 is a lock and dam located in Buffalo County, Wisconsin and Winona County, Minnesota on the Upper Mississippi River around river mile 738.1. It was constructed and placed in operation May 1935. The site underwent major rehabilitation from 1987 through 1998.
Lock and Dam No. 7 is a lock and dam located on the Upper Mississippi River at river mile 702.5 near the cities of La Crescent, Minnesota and Onalaska, Wisconsin. It forms pool 7 and Lake Onalaska . The facility was constructed in the mid-1930s and placed in operation in April 1937.
Lock and Dam No. 6 is a lock and dam located near Trempealeau, Wisconsin on the Upper Mississippi River near river mile 714.1. It was constructed and placed in operation in June 1936. The last major rehabilitation was from 1989 to 1999. The dam consists of 893 feet (272.2 m) long concrete structure with five roller gates and 10 tainter gates.