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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.
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
Normally, floods on the Lower Mississippi River occur in the winter and spring, and thus are unlikely to overlap with the Atlantic hurricane season.The development in early July 2019 of the storm that would become Hurricane Barry briefly prompted concerns that a storm surge propagating up the Mississippi River could increase already high river stages and overtop river levees as far upstream as ...
The locks and dams were installed nearly a century ago on the upper Mississippi River so that boats hauling freight up and down the river could have easier passage. Today, the upper river is ...
The canal and locks allow river traffic to bypass a portion of the river that is unnavigable in low water due to an anticlinal exposure of bedrock in the river—a "chain of rocks". The 8.4-mile (13.5 km) canal, 1,200-foot (370 m) main lock, and 600-foot (180 m) auxiliary lock were built in the late 1940s and early 1950s to allow a by-pass of ...
Lock and Dam No. 18 is a lock and dam located near Gladstone, Illinois and Burlington, Iowa on the Upper Mississippi River around river mile 410.5. The movable dam is 1,350 feet (411.5 m) and consists of 3 roller gates and 14 tainter gates. The lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long.
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The first Rock Island Bridge, constructed in the 1850s and located about 1,500 feet (460 m) upstream of the present bridge, was the first railroad bridge to span the Mississippi River. [7] It played a prominent role in the period before the American Civil War and construction of the First transcontinental railroad .