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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
Lock and Dam No. 9 is an American lock and dam located near Lynxville, Wisconsin and Harpers Ferry, Iowa on the Upper Mississippi River around river mile 647.9. The lower portion of Pool 9 was formally named Lake Winneshiek. The normal pool elevation behind the dam is 620 feet (189.0 m). It was constructed and placed in operation in July 1937.
Lock and Dam No. 7 is a lock and dam located on the Upper Mississippi River at river mile 702.5 near the cities of La Crescent, Minnesota and Onalaska, Wisconsin. It forms pool 7 and Lake Onalaska. The facility was constructed in the mid-1930s and placed in operation in April 1937. It underwent major rehabilitation from 1989 through 2002.
USGS.gov: Reach 1, Pool 11 USACE Civil Works Digital Project Notebook Historic American Engineering Record (HAER) No. IA-23, " Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mississippi River, Dubuque, Dubuque County, IA ", 50 photos, 16 data pages, 3 photo caption pages
Lock and Dam No. 13 is a lock and dam located on the Upper Mississippi River above Fulton, Illinois and Clinton, Iowa, United States.This facility offers visitors a view of the barges and boats locking through on the widest pool in the Upper Mississippi River.
Lock and Dam No. 8 is a lock and dam located near Genoa, Wisconsin on the Upper Mississippi River near river mile 679.2 in the United States. It was constructed and was put into operation by April 1937. The site underwent major rehabilitation from 1989 to 2003.
The lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. The lock and dam are owned and operated by the St. Paul District of the United States Army Corps of Engineers-Mississippi Valley Division. The Friends of Pool 10 is a volunteer organization dedicated to the cleanup of the sloughs, backwaters and islands of the pool.
Lock and Dam No. 24 is a lock and dam located near Clarksville, Missouri around river mile 273.4 on the Upper Mississippi River. The main lock is 110 feet (33.5 m) wide and 600 feet (182.9 m) long with its bottom at an elevation of 430 feet. The auxiliary lock is not operational. Normal pool elevation behind the dam is 449 feet.