The Kaskaskia River Project hosted a renaming ceremony in honor of Former Congressman Costello, a longtime advocate of the river and the communities that rely upon it,, Nov 6, 2014. The Water Resources Reform and Development Act of 2014 renamed the lock in recognition of his commitment to the Kaskaskia River watershed.
Located in Modoc, Illinois, Jerry F. Costello Lock and Dam (formerly the Kaskaskia Lock and Dam)is part of the Upper Mississippi River Nine Foot Navigation Project. The Project, authorized by the Rivers and Harbors Act of 1930, created and ensured a nine-foot deep navigation river channel.
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Latest News Releases

Recreational Vessel Lockages Are Being Postponed at the Jerry F. Costello Lock and Dam Until Drought Conditions
Beginning Monday, October 16, recreational vessel lockages will not be permitted at the Jerry F. Costello Lock & Dam in Modoc, IL (4800 Lock and Dam Road) until the Kaskaskia River returns to a...
Army Corps of Engineers reminds visitors to practice water safety
As millions of Americans plan visits to our nation’s lakes and rivers, the U.S. Army Corps of Engineers reminds visitors of the importance of practicing safe, sensible, and thoughtful activities in,...
2023 Kaskaskia Eagle Fest
The 2023 Eagle Fest event will be held on Saturday, March 4th from 9am – 3pm at the Jerry F. Costello Lock & Dam in Modoc, IL (4800 Lock and Dam Road). Join us for eagle-watching with spotting scopes...
Silt build up closes Costello Lock
The U.S. Army Corps of Engineers, St. Louis District, Jerry F. Costello Lock closed to traffic on August 19 when it could no longer close its downstream miter gates due to silt and debris build up on...

Kaskaskia River Project


Kaskaskia River Project
4800 Lock and Dam Road
Modoc, IL 62261
Phone: (618) 284-7160
Email: KaskyL&

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