Photo, Print, Drawing Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 20, Upper Mississippi River, Canton, Lewis County, MO Photos from Survey HAER MO-34

Title

• Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex No. 20, Upper Mississippi River, Canton, Lewis County, MO

Names

• Historic American Engineering Record, creator
• U.S. Army Corps of Engineers, Rock Island District
• Maxon Construction Company
• McCormick, Herbert G.
• Abbott, Edwin E.
• Piel, John H.
• F.C. Sammons Company
• R.C. Mahon Company
• Joseph T. Ryerson & Sons
• Michelmann Steel Construction Company
• Inland Steel Company
• Graybar Electric Company
• Crane Company
• E.E. Douther Iron Company
• Ceco Steel & Wire Products
• Universal-Atlas Cement Company
• Alph Portland Cement Company
• Dewey Portland Cement Company
• Missouri Portland Cement Company
• Keokuk Sand & Gravel Company
• Joy Tarbell Lumber Company
• S. Morgan Smith Company
• General Electric Company
• W.A. Briggs Bitumen Company
• International Clay Manufacturing Company
• United Drawn Steel Company
• S.A. Healy Company
• American Bridge Company
• United Forge and Machine Company
• Stanley Steel Company
• Atlas Car and Manufacturing Company
• The Alemite Company
• Cutler-Hammer, Inc.
• Lakeside Bridge & Steel Company
• Kerlow Steel Flooring Company
• Link-Belt Company
• Goodman Manufacturing Company
• U.S. Army Corps of Engineers
• Rathbun, Peter A., photographer
• Vannoy, David, photographer
• Rathbun, Mary Yeater, historian

Created / Published

• Documentation compiled after 1968

Headings

• -  navigation
• -  locks (hydraulic facilities)
• -  dams
• -  Tainter gates
• -  reinforced concrete construction
• -  valves (hardware)
• -  miter gates
• -  launches
• -  motors
• -  Colonial Revival architectural elements
• -  lockkeepers' houses
• -  hydraulic engineering
• -  New Deal
• -  Missouri--Lewis County--Canton

Latitude / Longitude

• 40.144088,-91.516181

Notes

• -  Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth of the Missouri River and Minneapolis, Minnesota. This specific project arose as a response to the farm crisis of the 1920s. Proponents of the New Deal adopted the project and gave speed to its construction as a means of providing public employment during the more general depression of the 1930s. By the 1940s, the completed project had converted over 650 miles of free-flowing river into a series of interconnected reservoirs which ensured enough water for fully loaded modern boats and barges to navigate the system. This constituted a significant alteration of the natural environment of the Upper Mississippi River. However, the project also brought economic benefits to the communities along and around the river corridor and lead to new recreational opportunities for the entire region. ...
• -  Survey number: HAER MO-34
• -  Building/structure dates: 1932- 1935 Initial Construction
• -  Building/structure dates: 1940-1942 Subsequent Work
• -  Building/structure dates: ca. 1945 Subsequent Work
• -  Building/structure dates: 1951 Subsequent Work
• -  Building/structure dates: ca. 1955 Subsequent Work
• -  Building/structure dates: ca. 1970 Subsequent Work
• -  Building/structure dates: ca. 1971 Subsequent Work
• -  Building/structure dates: 1973 Subsequent Work
• -  Building/structure dates: ca. 1975 Subsequent Work
• -  Building/structure dates: 1980-1981 Subsequent Work
• -  Building/structure dates: 1983-1984 Subsequent Work
• -  Building/structure dates: 1986-1988 Subsequent Work

Medium

• Photo(s): 33
• Data Page(s): 19
• Photo Caption Page(s): 2

Call Number/Physical Location

• HAER MO,56-CANT,1-

Source Collection

• Historic American Engineering Record (Library of Congress)

Repository

• Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print

Control Number

• mo1075

Rights Advisory

• No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. https://www.loc.gov/rr/print/res/114_habs.html

Online Format

• image
• pdf