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• Collection: Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey

• Title: Upper Mississippi River 9-Foot Channel, Lock & Dam No. 1, In Mississippi River at Mississippi Boulevard, below Ford Parkway Bridge, Saint Paul, Ramsey County, MN
• Other Title: Twin Cities Lock & Dam
  Ford Lock & Dam
• Creator(s): Historic American Engineering Record, creator
• Related Names:
     U.S. Army Corps of Engineers
     U.S. Army Corps of Engineers, St. Paul District
     Anfinson, John O. , historian
     Berlovitz, Ralph , photographer
• Date Created/Published: Documentation compiled after 1968
• Medium: Photo(s): 30
  Data Page(s): 48
  Photo Caption Page(s): 3
• Reproduction Number: ---
• Rights Advisory: No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. (http://www.loc.gov/rr/print/res/114_habs.html)
  
• Call Number: HAER MINN,62-SAIPA,33-
• Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
• Notes:
  • Significance: Lock and Dam No. 1 is significant because it symbolizes important local and national events and trends, and because it possesses a rare and unique design. In 1894, Congress authorized two locks and dams for the Mississippi River between Minneapolis and St. Paul due to a rivalry between the two cities and because, at that time, two dams made sense to meet navigation requirements. National developments in hydropower technology and in the country's attitude toward its natural resources arrested the navigation project in full stride. Only the power of these developments on national and local levels explains whey Congress ordered one of the new locks and dams destroyed and the other revamped. Those same issues created a decade-long debate so divisive that it immobilized the national government in terms of establishing its role in hydropower development. Lock and Dam No. 1 represents this debate, as Congress granted the Corps authority to build the hydropower station base but not the plant and as six years would pass before the Ford Motor Company built its plant on this base. Because Congress revamped the original navigation project to include a high dam and hydropower, the Corps selected an Ambursen dam for Dam No. 1 and modified it in ways that make it a uncommon structure. In separably intertwined, politics, economics and technological developments explain how Dam No. 1 came to be and why it has a unique design.
  • Survey number: HAER MN-62
  • Building/structure dates: 1899-1917 Initial Construction
• Subjects:
  • navigation
• Place:
  • Minnesota--Ramsey County--Saint Paul
  • Minnesota--Hennepin County--Minneapolis
• Collections:
  • Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey
• Part of: Historic American Engineering Record (Library of Congress)
• Bookmark This Record:
     https://www.loc.gov/pictures/item/mn0384/

The Library of Congress generally does not own rights to material in its collections and, therefore, cannot grant or deny permission to publish or otherwise distribute the material. For further rights information, see "Rights Information" below and the Rights and Restrictions Information page ( https://www.loc.gov/rr/print/res/rights.html ).

• Rights Advisory: No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html
• Reproduction Number: ---
• Call Number: HAER MINN,62-SAIPA,33-
• Medium: Photo(s): 30
  Data Page(s): 48
  Photo Caption Page(s): 3

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• Call Number: HAER MINN,62-SAIPA,33-
• Medium: Photo(s): 30
  Data Page(s): 48
  Photo Caption Page(s): 3

Please use the following steps to determine whether you need to fill out a call slip in the Prints and Photographs Reading Room to view the original item(s). In some cases, a surrogate (substitute image) is available, often in the form of a digital image, a copy print, or microfilm.

1. Is the item digitized? (A thumbnail (small) image will be visible on the left.)

   • Yes, the item is digitized. Please use the digital image in preference to requesting the original. All images can be viewed at a large size when you are in any reading room at the Library of Congress. In some cases, only thumbnail (small) images are available when you are outside the Library of Congress because the item is rights restricted or has not been evaluated for rights restrictions.

     As a preservation measure, we generally do not serve an original item when a digital image is available. If you have a compelling reason to see the original, consult with a reference librarian. (Sometimes, the original is simply too fragile to serve. For example, glass and film photographic negatives are particularly subject to damage. They are also easier to see online where they are presented as positive images.)

   • No, the item is not digitized. Please go to #2.

2. Do the Access Advisory or Call Number fields above indicate that a non-digital surrogate exists, such as microfilm or copy prints?

   • Yes, another surrogate exists. Reference staff can direct you to this surrogate.

   • No, another surrogate does not exist. Please go to #3.

3. If you do not see a thumbnail image or a reference to another surrogate, please fill out a call slip in the Prints and Photographs Reading Room. In many cases, the originals can be served in a few minutes. Other materials require appointments for later the same day or in the future. Reference staff can advise you in both how to fill out a call slip and when the item can be served.

To contact Reference staff in the Prints and Photographs Reading Room, please use our Ask A Librarian service or call the reading room between 8:30 and 5:00 at 202-707-6394, and Press 3.