^"Lock & Dam No. 9". Army Corps of Engineers. Retrieved 30 April 2014.
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Wikimedia Commons has media related to Mississippi River Lock and Dam number 9.
U.S. Army Corps of Engineers, St. Paul District: Lock and Dam 9
U.S. Army Corps of Engineers, St. Paul District: Lock and Dam 9 brochure
Blackhawk Park - U.S. Army Corps of Engineers Park
USGS Reach 1, Pool 9
Historic American Engineering Record (HAER) No. WI-50, "Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, Crawford County, WI", 83 photos, 12 data pages, 6 photo caption pages
Friends of Pool 9 - Nonprofit organization dedicated to keeping the pool clean, managing annual volunteer cleanups, particularly of backwaters
January 01, 1970
lock, lock, located, near, lynxville, wisconsin, harpers, ferry, iowa, upper, mississippi, river, around, river, mile, lower, portion, pool, formally, named, lake, winneshiek, normal, pool, elevation, behind, feet, constructed, placed, operation, july, 1937, s. 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 1 The lock and dam are owned and operated by the St Paul District of the United States Army Corps of Engineers Mississippi Valley Division Lock and Dam No 9Mississippi River Lock and Dam No 9Location of Lock and Dam No 9 in WisconsinLocationTaylor Township Allamakee County Iowa Seneca Crawford County Wisconsin near Lynxville Wisconsin USACoordinates43 12 46 N 91 06 15 W 43 21278 N 91 10417 W 43 21278 91 10417Construction began1936 88 years ago 1936 Opening dateJuly 1937 87 years ago 1937 Operator s U S Army Corps of Engineers St Paul DistrictDam and spillwaysImpoundsUpper Mississippi RiverReservoirCreatesPool 9 Lake WinneshiekTotal capacity470 000 acre ft 0 58 km3 Catchment area66 610 sq mi 172 500 km2 Contents 1 Images 2 See also 3 References 4 External linksImages edit nbsp nbsp nbsp Ground view from WIS35See also editBlackhawk Park Public Works Administration dams list Upper Mississippi River National Wildlife and Fish RefugeReferences edit Lock amp Dam No 9 Army Corps of Engineers Retrieved 30 April 2014 External links edit nbsp Wikimedia Commons has media related to Mississippi River Lock and Dam number 9 U S Army Corps of Engineers St Paul District Lock and Dam 9 U S Army Corps of Engineers St Paul District Lock and Dam 9 brochure Blackhawk Park U S Army Corps of Engineers Park Lock and Dam No 9 Fishing Forum USGS Reach 1 Pool 9 Historic American Engineering Record HAER No WI 50 Upper Mississippi River 9 Foot Channel Lock amp Dam No 9 Lynxville Crawford County WI 83 photos 12 data pages 6 photo caption pages Friends of Pool 9 Nonprofit organization dedicated to keeping the pool clean managing annual volunteer cleanups particularly of backwaters Retrieved from https en wikipedia org w index php title Lock and Dam No 9 amp oldid 1213968936, wikipedia, wiki, book, books, library,
