Lock and Dam No. 11

Coordinates: 42°32′25″N 90°38′39″W / 42.540278°N 90.644167°W / 42.540278; -90.644167
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Lock and Dam No. 11
Lock and Dam No. 11 as seen from a drone.
Official nameGeneral Zebulon Pike Lock and Dam No. 11
LocationDubuque, Iowa / Jamestown, Grant County, Wisconsin
Coordinates42°32′25″N 90°38′39″W / 42.540278°N 90.644167°W / 42.540278; -90.644167
Construction began1934
Opening date14 September 1937
Operator(s) U.S. Army Corps of Engineers, Rock Island District
Dam and spillways
ImpoundsUpper Mississippi River
Length1,478 ft (450 m)
Reservoir
CreatesPool 11
Total capacity170,000 acre⋅ft (0.21 km3)
Catchment area81,600 sq mi (211,000 km2)
Lock and Dam No. 11 Historic District
Lock and Dam No. 11 is located in Iowa
Lock and Dam No. 11
Lock and Dam No. 11 is located in the United States
Lock and Dam No. 11
Location11 Lime Street, Dubuque, Iowa
Area114.2 acres (46.22 ha)
Built1937
ArchitectAbbott, Edwin E.; multiple
Architectural stylelock and dam
MPSUpper Mississippi River 9-Foot Navigation Project MPS
NRHP reference No.04000171[1]
Added to NRHPMarch 10, 2004

General Zebulon Pike Lock and Dam No. 11 is a lock and dam located between Dubuque, Iowa, and rural Grant County, Wisconsin, on the Upper Mississippi River.

It was opened to navigation September 14, 1937.

Description[edit]

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.[2]

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

History[edit]

Construction the lock began in February 1934 while the dam was started to be built September 1935. They were completed August 1936 and May 1937 respectively. The system was put into operation on September 14, 1937.[3]

In December 2015, 200 coots died near the dam and O'Leary Lake.[4]

Gallery[edit]

  • Lock and Dam No. 11
  • Aerial view to the west—Iowa bank
    Aerial view to the west—Iowa bank
  • Aerial view, with Eagle Point Bridge (1940)
    Aerial view, with Eagle Point Bridge (1940)
https://web.archive.org/web/20161226221158/http://www.mvr.usace.army.mil/Portals/48/docs/CC/FactSheets/MISS/UMR%20Locks%20%26%20Dams%20-%202016%20%28MVD%29.pdf
https://web.archive.org/web/20161226221158/http://www.mvr.usace.army.mil/Portals/48/docs/CC/FactSheets/MISS/UMR%20Locks%20%26%20Dams%20-%202016%20%28MVD%29.pdf

See also[edit]

References[edit]

  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. ^ "Lock & Dam 11" (PDF). U.S. Army Corps of Engineers. Archived from the original (PDF) on January 6, 2014. Retrieved January 5, 2014.
  3. ^ "Lock and Dam 11 Mississippi River, Dubuque, Iowa" (PDF). United States Army Corps of Engineers. 2022. Retrieved May 26, 2024.
  4. ^ Reber, Craig D. (December 18, 2015). "Estimated 200 birds found dead near O'Leary's Lake". Telegraph Herald. Retrieved May 17, 2024.

External links[edit]

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