Visitors Guide to
Lock and Dam No. 21
Quincy, Illinois
217-222-0918

Accessible Parking Accessible Picnic Facilities Illinois Historic Site Accessible Restrooms

   
Lock and Dam No. 21 is located near Quincy, Illinois the Upper Mississippi River around river mile 324.9. Listed on the National Register of Historic Places construction of the lock and dam began in 1933 and became operational in July 1938. The dam portion of the structure is 1,265 feet long and consists of 3 roller gates and 10 tainter gates. A 1,400-foot long submersible earthen dike extends to a flood control levee on the Missouri shore. The main lock is 110 feet wide by 600 feet long and there is also an incomplete auxiliary lock. There is an observation deck at the site (it is not handicapped accessible) as well as picnic facilities. Many endangered bald eagles establish their winter home in the trees along Lock and Dam 21. It should be noted that although the observation deck is closed during the winter months the eagles can be seen from the road near Lock and Dam No. 21.

Visiting Lock and Dam No. 21
     Visiting Hours
          8 am - Midnight daily
          Closed December 1 - March 1
There is no charge to visit Lock and Dam No. 21


Location: Take the Gardner Expressway (IL-57) southeast of downtown Quincy to W. Lock and Dam Road and then 1/2 mile to Lock and Dam No. 21.


Regional Locks and Dams - Get more information on the Locks and Dams in the Middle Mississippi River Valley from Lock and Dam No.19 in Keokuk, Iowa to and Lock and Dam No. 27 in Granite City, Illinois just north of St. Louis.

Learn more about the Quincy area.

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