Harman Patil (Editor)

Lock and Dam No. 9

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Opening date
  
July 1937

Opened
  
July 1937

Construction began
  
1936

Creates
  
Pool 9

Catchment area
  
172,519 km²

Impound
  
Upper Mississippi River

Lock and Dam No. 9 httpsuploadwikimediaorgwikipediacommonsthu

Location
  
Taylor Township, Allamakee County, Iowa / Seneca, Crawford County, Wisconsin, near Lynxville, Wisconsin, USA

Impounds
  
Upper Mississippi River

Total capacity
  
470,000 acre·ft (0.58 km)

Operator
  
United States Army Corps of Engineers

Similar
  
Lock and Dam No 10, Lock and Dam No 8, Lock and Dam No 6, Lock and Dam No 11, Lock and Dam No 13

2 bnsfs at lock and dam no 9


Lock and Dam No. 9 is a 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. The site underwent a major rehabilitation from 1989 and 2006. The dam consists of concrete structure 811 feet (247.2 m) long with five roller gates and eight tainter gates. Earth embankment 9,800 feet (2,987.0 m) long with a grouted overflow spillway 1,350 feet (411.5 m) long. The lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. Lock and Dam No. 9 is located 12 miles upstream from Prairie du Chien, Wisconsin.

Contents

Map of Lock and Dam No. 9, Taylor, IA 52146, USA

References

Lock and Dam No. 9 Wikipedia