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Lock and Dam No. 17

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Title: Lock and Dam No. 17  
Author: World Heritage Encyclopedia
Language: English
Subject: New Boston, Illinois, List of locks and dams of the Upper Mississippi River, Upper Mississippi River, WikiProject Iowa/Iowa recent changes
Publisher: World Heritage Encyclopedia

Lock and Dam No. 17

Mississippi River Lock and Dam number 17
Location Jefferson Township & Port Louisa Township, Louisa County, Iowa / New Boston Township, Mercer County, Illinois,
near New Boston, Illinois, USA
Construction began 1935
Opening date May 14, 1939
Operator(s) United States Army Corps of Engineers
Dam and spillways
Impounds Upper Mississippi River
Length 1,121 feet (341.7 m)
Creates Pool 17
Total capacity 50,000 acre·ft (0.062 km3)
Catchment area 99,600 sq mi (258,000 km2)
Lock and Dam No. 17 Historic District
Location 173 Lock and Dam Rd., New Boston, Illinois
Area 86.9 acres (35.2 ha)
Built 1939
Architectural style Other, Moderne, Lock and Dam
Governing body Federal
MPS Upper Mississippi River 9-Foot Navigation Project MPS
NRHP Reference # 04000177[1]
Added to NRHP March 10, 2004

Lock and Dam No. 17 is a lock and dam located near New Boston, Illinois on the Upper Mississippi River near river mile 437. Its main lock is 110 feet (33.5 m) wide and 600 feet (182.9 m) long with its bottom at an elevation of 518 feet (157.9 m). Normal pool elevation behind the dam is 536 feet (163.4 m). The movable portion of the dam is 1,121 feet (341.7 m) long and consists of 3 roller gates and 8 tainter gates.[2] In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 17 Historic District, #04000177 covering 869 acres (3.5 km2), 1 building, 3 structures and 2 objects.


  1. ^ "National Register Information System". National Register of Historic Places.  
  2. ^ "Lock & Dam 17" (PDF).  

External links

  • Historic American Engineering Record (HAER) No. IL-28, "Mississippi River 9-Foot Channel Project, Lock & Dam No. 17, Upper Mississippi River, New Boston, Mercer County, IL"
  • Lock 17

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