Visitors Guide to
Lock and Dam No. 24

Clarksville, Missouri

Accessible Parking Accessible Scenic View Accessible Wildlife Viewing Accessible Bald Eagle Viewing Accessible Restrooms

Located just north of the river town of Clarksville at Mississippi mile marker 273.4 this was the first dam on the upper Mississippi River that was without roller gates being built exclusively using the highest level of tainter gate technology available. The curved tainter gates can be pivoted at a number of angles to block some or all of the flow of water.

The main lock is 100 feet wide and 600 feet long with an average rise of 15 feet. Normal pool elevation behind the dam is 449 feet. The movable portion of the dam is 1,340 feet long and consists of 15 80-foot long tainter gates. A 2,720 feet submersible earthen dike extends from the movable dam to the Illinois shore. Listed on the National Register of Historic Places construction of the lock and dam began in July 1936 and became operational in March 1940.

Lock and Dam No. 24 is what makes Clarksville famous among Bald Eagle fans. The lock and dam creates an open ice-free area of water and the churning water stuns the fish making them easy prey for the eagles. Lock and Dam has facilities that are open to the public including an observation platform and picnic tables. A public boat ramp is located just downstream.

Bird Watching
Lock and Dam #24 is listed on the National Audubon Society's Great River Birding Trail. They report that  a viewing platform at the dam provides views of Bald Eagles (mid-November through March,) Ospreys, and several species of gulls and terns during spring and fall migration. An annual Bald Eagle Event is held in late January. Be sure to inquire about the development of two new birding and interpretive sites in Clarksville at the Holcim Concrete grounds and Silo Park.

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.

GPS Coordinates
N  39  22.400
W 90  54.343

Learn more about the Clarksville area.
Elsah, Illinois
Foundry Art Centre
St. Charles, MO
Fort de Chartres
State Historic Site
U.S. Grant
National Historic Site

  Regional Guides
to the Middle Mississippi River Valley
  Meeting of the Great Rivers
National Scenic Byway
Ste. Genevieve &
French Colonial Country
Gateway to the West
St. Louis & St. Louis County
   Meeting the Missouri
Historic St. Charles County
The Lincoln Hills Region
Northeast Missouri
  The Tri-States Area
Iowa, Illinois & Missouri
The Mississippi River
Meets the Ohio River Home Page
Your index to over 800 informative pages covering the Middle Mississippi River Valley.
  At we strive for accuracy.
If you have any corrections, suggestions or information
you would like to see contact the webmaster.
For advertising information contact marketing.
Copyright 2001-2011 - Elsah, Illinois