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HAER No. IL-27, "Mississippi River 9-Foot Channel Project, Lock & Dam No. 15, Rock Island, Rock Island County, IL", 52 photos, 16 data pages, 4 photo caption pages HAER No. IL-28, " Mississippi River 9-Foot Channel Project, Lock & Dam No. 17, New Boston, Mercer County, IL ", 78 photos, 14 data pages, 5 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 Old River Control Structure is a complex containing the original low-sill [6] and overbank [7] structures, as well as the auxiliary structure that was constructed after the low-sill structure was damaged during the Mississippi River Flood of 1973. The complex also contains a navigation lock and the Sidney A. Murray Jr. Hydroelectric Station.
Coordinates: 30.7766°N 91.6199°W. The Morganza Spillway, between the Mississippi River and the Atchafalaya Basin, shown while open in 1973. Water flows from the Mississippi (upper right) into the Morganza Floodway (lower left). The Morganza Spillway or Morganza Control Structure is a flood-control structure in the U.S. state of Louisiana.
The Inner Harbor Navigation Canal Lock —commonly known as Industrial Canal Lock or simply Industrial Lock [1] —is a navigation lock in New Orleans. It connects the Lower Mississippi River to the Industrial Canal and other sea-level waterways. Because it is shorter and narrower than most modern locks on the Mississippi River System, the ...
The first bridge (and only log bridge) over the Mississippi, about 25 feet south of its source at Lake Itasca. This is a list of all current and notable former bridges or other crossings of the Upper Mississippi River which begins at the Mississippi River's source and extends to its confluence with the Ohio River at Cairo, Illinois.
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 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 .