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HAER No. MN-62, "Mississippi River 9-Foot Channel, Lock & Dam No. 1, Saint Paul, Ramsey County, MN", 30 photos, 47 data pages, 3 photo caption pages HAER No. IA-22, " Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg, Clayton County, IA ", 114 photos, 11 data pages, 8 photo caption pages
The uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is 799 feet (244 m). Below the dam, the river's elevation is 750 feet (230 m). This 49-foot (15 m) drop is the largest of all the Mississippi River locks and dams.
The Upper Mississippi River is today the portion of the Mississippi River upstream of St. Louis, Missouri, United States, [1] at the confluence of its main tributary, the Missouri River. [citation needed] Historically, it may refer to the area above the Arkansas Post, above the confluence of Ohio River, or above Cape Girardeau .
In Ancient Egypt, the river-locks was probably part of the Canal of the Pharaohs: Ptolemy II is credited by some [who?] for being the first to solve the problem of keeping the Nile free of salt water when his engineers invented the lock around 274/273 BC. Basic construction and operation A plan and side view of a generic, empty canal lock.
The following 32 pages are in this category, out of 32 total. ... List of locks and dams of the Upper Mississippi River; 0–9. Lock and Dam No. 11;
The Archeological Map of Egypt program is meant to provide a documentation and management tool for the Egyptian archaeological sites that are spread all over the country. It divides the information of the archaeological sites into three levels: National, Sites, and Monuments. [2] Using multimedia technologies in conjunction with the GIS, it ...
Total capacity. 238,000 acre⋅ft (0.294 km 3) Catchment area. 171,470 sq mi (444,100 km 2) Melvin Price Locks and Dam is a dam and two locks at river mile 200.78 on the Upper Mississippi River, about 17 miles (27 km) north of Saint Louis, Missouri. The collocated National Great Rivers Museum [Wikidata], explains the structure and its engineering.
File. : Ancient Egypt map-en.svg. Size of this PNG preview of this SVG file: 293 × 598 pixels. Other resolutions: 117 × 240 pixels | 235 × 480 pixels | 376 × 768 pixels | 501 × 1,024 pixels | 1,003 × 2,048 pixels | 1,577 × 3,219 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.