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Lock and Dam No. 11
Lock and Dam #11 as seen from Eagle Point Park in Dubuque, Iowa.
Official name General Zebulon Pike Lock and Dam No. 11
Impounds Upper Mississippi River
Locale Dubuque County, Iowa / Grant County, Wisconsin, USA
Length 1,478 ft (450 m)
Construction began 1934
Opening date 14 September 1937
Reservoir information
Creates Pool 11
Geographical Data
Coordinates Coordinates: 42°32′25″N 90°38′39″W / 42.540278°N 90.644167°W / 42.540278; -90.644167
Lock and Dam No. 11 Historic District
U.S. National Register of Historic Places
U.S. Historic District
Location: 11 Lime St., Dubuque, Iowa
Area: 114.2 acres (46.2 ha)
Built/Founded: 1937
Architect: Abbott, Edwin E.; multiple
Architectural style(s): lock and dam
MPS: Upper Mississippi River 9-Foot Navigation Project MPS
Added to NRHP: March 10, 2004
NRHP Reference#: 04000171[1]
Maintained by United States Army Corps of Engineers

General Zebulon Pike Lock and Dam No. 11 is a lock and dam located north of Dubuque, Iowa on the Upper Mississippi River. It was opened to navigation 14 September 1937. The movable portion of the dam is 1,478 feet (450.5 m) long and consists of 13 tainter gates and three roller gates. The non-movable part is a 3,340 feet (1,018.0 m) long non-overflow earthen dam that connects to the Wisconsin shore. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long there is also an incomplete auxiliary lock.

The lock and dam are listed on the National Register of Historic Places.[1]

See also


  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. 2009-03-13.  

External links

Aerial view of Lock and Dam No. 11. View is to the west, looking across to the Iowa side of the river.
Locks and dams of the Upper Mississippi River
Lock and Dam No. 10
Lock and Dam No. 12


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