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HAER No. MN-62, "Mississippi River 9-Foot Channel, Lock & Dam No. 1, Saint Paul, Ramsey County, MN", 30 photos, 47 data pages, 3 photo caption pages HAER No. IA-22, " Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg, Clayton County, IA ", 114 photos, 11 data pages, 8 photo caption pages
Lock and Dam No. 15 is a lock and dam located on the Upper Mississippi River.It spans the river between Rock Island, Illinois and Davenport, Iowa.Lock and Dam 15 is the largest roller dam in the world, its dam is 1,203 feet (366.7 m) long and consists of nine 109 feet (33.2 m) non-submersible, non-overflow roller gates and two 109 feet (33.2 m) non-submersible overflow roller gates.
Lock and Dam No. 19 is a lock and dam located on the Upper Mississippi River near Keokuk, Iowa. In 1978, the Keokuk Lock and Dam was listed in the National Register of Historic Places , #78001234. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 19 Historic District, #04000179 covering 1,605 acres ...
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. It underwent major rehabilitation from 1989 through 2002.
Ford Dam, officially known as Lock and Dam No. 1, is on the Upper Mississippi River and is located between Minneapolis and Saint Paul, Minnesota just north of the confluence of the Mississippi with the Minnesota River at Mississippi River mile 847.9, in Minneapolis.
Lock and Dam No. 25 is a lock and dam located near Winfield, Missouri, on the Upper Mississippi River around river mile 241.4. The movable portion of the dam is 1,296 feet (395.0 m) long and consists of three roller gates and 14 tainter gates. A 2,566 feet (782.1 m) submersible dike extends to the Illinois shore.
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.
Lock and Dam No. 24 is a lock and dam located near Clarksville, Missouri around river mile 273.4 on the Upper Mississippi River.The main lock is 110 feet (33.5 m) wide and 600 feet (182.9 m) long with its bottom at an elevation of 430 feet.