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Lock and Dam No. 19 is a lock and dam located on the Upper Mississippi River near Keokuk, Iowa. In 1978, the Keokuk Lock and Dam was listed in the National Register of Historic Places, #78001234. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 19 Historic District, #04000179 covering 1,605 acres ...
Old River low-sill control structure discharging water into the Atchafalaya, May 2011. The Old River Control Structure is a floodgate system in a branch of the Mississippi River in central Louisiana. It regulates the flow of water from the Mississippi into the Atchafalaya River, thereby preventing the Mississippi River from changing course.
HAER No. IA-27, "Mississippi River 9-Foot Channel, Lock & Dam No. 19, Keokuk, Lee County, IA", 79 photos, 17 data pages, 5 photo caption pages HAER No. IL-26, " Mississippi River 9-Foot Channel Project, Lock & Dam No. 13, Fulton, Whiteside County, IL ", 14 photos, 16 data pages, 2 photo caption pages
The Bonnet Carré Spillway / ˈbɒniː ˈkɛriː / is a flood control operation in the Lower Mississippi Valley. Located in St. Charles Parish, Louisiana, about 12 miles (19 km) west of New Orleans, it allows floodwaters from the Mississippi River to flow into Lake Pontchartrain and thence into the Gulf of Mexico. The spillway was constructed ...
Upper Mississippi River. Chain of Rocks Lock and Dam, also known as Locks No. 27, is a lock situated at the southern end of Chouteau Island near St. Louis, Missouri on the Upper Mississippi River. Its associated dam is just downstream of the Chain of Rocks Bridge, and the lock is located over 3 miles (4.8 km) southeast on the Chain of Rocks canal.
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.
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.
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 .