Lock and Dam No. 15
Lock and Dam No. 15 on the Mississippi River. View is from the Illinois side of the river looking across to Davenport, Iowa.
Impounds	Upper Mississippi River
Creates	Pool 15
Locale	Rock Island, Illinois
Maintained by	United States Army Corps of Engineers
Length	1,203 feet (366.7 m)
Construction began	1931
Opening date	March 7, 1934
Geographical Data
Coordinates	41°31′07″N, 90°34′08″W

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. It is unusual among the upper Mississippi River dams in that if has only roller gates, has different sizes and types of roller gates, it is not perpendicular to the flow of the river and is one of the few facilities that has a completed auxiliary lock. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long and its auxiliary lock is 110 feet (33.5 m) wide by 360 feet (109.7 m) long. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 15 Historic District, #04000175 covering 3,590 acres (14.5 km²), 2 buildings, 9 structures, and 1 object. See also: Mississippi River The Upper Mississippi River is the portion of the Mississippi River upstream of Cairo, Illinois. ... Rock Island is a city located in Rock Island County, Illinois. ... United States Army Corps of Engineers logo The United States Army Corps of Engineers, or USACE, is made up of some 34,600 civilian and 650 military men and women. ... March 7 is the 66th day of the year in the Gregorian calendar (67th in leap years). ... 1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ... Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ... Canal locks in England. ... This article or section does not adequately cite its references or sources. ... See also: Mississippi River The Upper Mississippi River is the portion of the Mississippi River upstream of Cairo, Illinois. ... The Mississippi River, derived from the old Ojibwe word misi-ziibi meaning great river (gichi-ziibi big river at its headwaters), is the second-longest named river in North America, with a length of 2320 miles (3733 km) from Lake Itasca to the Gulf of Mexico. ... Rock Island is a city located in Rock Island County, Illinois. ... Davenport is a city in the American state of Iowa that borders the Mississippi River. ... The Highline Canal Roller Dam, an active roller dam in De Beque Canyon near Grand Junction, Colorado. ... A typical plaque showing entry on the National Register of Historic Places. ...

See also

• Government Bridge, passes over the locks.
• Rock Island Arsenal adjacent to the locks.

The Government Bridge, or Arsenal Bridge, spans the Mississippi River connecting Rock Island, Illinois and Davenport, Iowa. ... RIA is a company located in the Phillipines. ...

External links

• Tour of Locks and Dam 15
• HAER - Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, Upper Mississipi River (Arsenal Island), Rock Island, Rock Island County, IL
• US Army Corp of Engineers LD 15 Cam 2 – Live camera of Lock & Dam 15, picture updated every 60 seconds
• Maps and aerial photos Coordinates: 41.517888° -90.566247°
  • Street map from Google Maps, or Yahoo! Maps, or Windows Live Local
  • Satellite image from Google Maps, Windows Live Local, WikiMapia
  • Topographic map from TopoZone
  • Aerial image or topographic map from TerraServer-USA

Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ...