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

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 Rough Fish Roundup Bowfishing tournament
The annual Kaskaskia River Rough Fish Round Up is returning to Randolph County for 2022! The annual Bowfishing tournament will be held on Saturday July 16, at the Jerry F. Costello (Kaskaskia) Lock...
Dredging on the Kaskaskia River
The U.S. Army Corps of Engineers is announcing that dredging has once again began on the Kaskaskia River from the New Athens, Ill. boat ramp south to the confluence of the Mississippi River. This...

Kaskaskia River Project


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

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