General Zebulon Pike Lock and Dam No. 11 is a
lock and
dam
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, a ...
located between
Dubuque, Iowa, and rural
Grant County, Wisconsin
Grant County is a county (United States), county located in the U.S. state of Wisconsin. As of the 2020 United States census, 2020 census, the population was 51,938. Its county seat is Lancaster, Wisconsin, Lancaster. The county is named after t ...
, on the
Upper Mississippi River
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it f ...
.
It was opened to navigation 14 September 1937.
Description
The movable portion of the dam is long and consists of 13
tainter gates and three
roller gates
Roller may refer to:
Birds
*Roller, a bird of the family Coraciidae
* Roller (pigeon), a domesticated breed or variety of pigeon
Devices
* Roller (agricultural tool), a non-powered tool for flattening ground
* Road roller, a vehicle for compa ...
. The non-movable part is a long non-overflow earthen dam that connects to the
Wisconsin
Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...
shore.
The main lock is wide by long. There is also an incomplete auxiliary lock.
The lock and dam are listed on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...
.
Gallery
File: Lock_and_dam.png,
File:Mississippi River Lock and Dam number 11.jpg, Aerial view to the west—Iowa bank
File:Grant11171940 11A-73 7x9 crop Lock and Dam 11 with Eagle Point Bridge.jpg, Aerial view, with Eagle Point Bridge
The Eagle Point Bridge was a very narrow two-lane automobile bridge that connected urban Dubuque, Iowa, and rural Grant County, Wisconsin. It was part of the US 61/US 151 route, and was a toll bridge. After the new Dubuque–Wisconsin Bridge was bu ...
(1940)
See also
*
*
Upper Mississippi River National Wildlife and Fish Refuge
The Upper Mississippi River National Wildlife and Fish Refuge is a ,[Eagle Point Bridge
The Eagle Point Bridge was a very narrow two-lane automobile bridge that connected urban Dubuque, Iowa, and rural Grant County, Wisconsin. It was part of the US 61/US 151 route, and was a toll bridge. After the new Dubuque–Wisconsin Bridge was bu ...](_blank)
*
Sinnipee, Wisconsin
*
Public Works Administration dams dist
References
External links
Lock and Dam No. 11 - U.S. Army Corps of Engineers(Official site)
*
USACE Civil Works Digital Project Notebook
*
{{NRHP in Dubuque, Iowa
11
11
Dams on the Mississippi River
11
Gravity dams
Roller dams
Buildings and structures in Dubuque County, Iowa
Buildings and structures in Grant County, Wisconsin
Historic American Engineering Record in Iowa
Historic American Engineering Record in Wisconsin
Historic districts in Dubuque, Iowa
Historic districts on the National Register of Historic Places in Iowa
National Register of Historic Places in Dubuque, Iowa
Transport infrastructure completed in 1937
Transportation buildings and structures in Dubuque County, Iowa
Driftless Area
Mississippi Valley Division
11
11
11
1937 establishments in Iowa
1937 establishments in Wisconsin