Historic American Buildings Survey,
Engineering Record, Landscapes Survey
View photos from this survey. (Some may not be online).
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Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, Madison County, IL
- Title: Upper Mississippi River 9-Foot Channel Project, Lock & Dam 26, Alton, Madison County, IL
- Creator(s): Historic American Engineering Record, creator
- Related Names:
U.S. Army Corps of Engineers
U.S. Army Corps of Engineers, St. Louis District
John Griffiths & Son Company
O'Bannon, Patrick W. , historian
Herr, John P. , photographer - Date Created/Published: Documentation compiled after 1968
- Medium:
Photo(s): 81
Data Page(s): 11
Photo Caption Page(s): 6 - 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 ILL,60-ALT,3-
- Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
- Notes:
- Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date to the 1920s and the efforts of Upper Midwest commercial interests to improve their access to markets. During the early years of the Great Depression, the project became transformed into a massive public works program intended to relieve local and regional unemployment. The locks and dams that comprise the project constitute seminal developments in the technological history of American river navigation projects. The project pioneered the use of non-navigable movable dams in the United States. Designers and engineers from the U.S. Army Corps of Engineers committed themselves to a foreign technology, by their decision to incorporate roller gates into the majority of the project's dams and, more importantly, developed new and improved versions of the simpler and more reliable Tainter gate at such a rapid rate that, by the end of the 1930s, roller gates had become a passé' technology. The successful completion of the Nine-Foot Channel Project transformed the Upper Mississippi River into an intra-continental canal, providing a fully navigable interior river system throughout the Midwest. The project significantly altered the environment of the Upper Mississippi, but it also served as an impetus for the improvement of drinking water and sewage disposal systems in towns and cities located along the river. Additionally, the project provided new recreational opportunities to the general public.
- Survey number: HAER IL-31
- Building/structure dates: 1934- 1938 Initial Construction
- Subjects:
- Place:
- Collections:
- Part of: Historic American Engineering Record (Library of Congress)
- Bookmark This Record:
https://www.loc.gov/pictures/item/il0555/
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 ILL,60-ALT,3-
- Medium:
Photo(s): 81
Data Page(s): 11
Photo Caption Page(s): 6
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- Call Number: HAER ILL,60-ALT,3-
- Medium:
Photo(s): 81
Data Page(s): 11
Photo Caption Page(s): 6
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Is the item digitized? (A thumbnail (small) image will
be visible on the left.)
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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.
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No, the item is not digitized. Please go to #2.
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Yes, another surrogate exists. Reference staff can direct you to this surrogate.
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No, another surrogate does not exist. Please go to #3.
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