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U.S. Army Corps of Engineers Chief of Engineers and Commanding General Lt. Gen Scott Spellmon presented Brian Ragsdale, St. Louis District Dredge Potter master with the 2023 Chief of Engineers Operations and Maintenance Castle Award during the 2023 National Awards Ceremony at the Corps of Engineers headquarters in Washington, D.C., Nov. 29, 2023.
Lock and Dam 25 is located in Calhoun County, Illinois, and Lincoln County, Missouri, at approximately Mile 241.4 on the Upper Mississippi River above the mouth of the Ohio River near Winfield, Missouri. Proposed project features include construction of new 1200-foot, pile founded, lock located in the auxiliary miter gate bay, and construction of an upstream, ported guard wall totaling 1200 feet, and a 650-foot downstream approach wall. The existing 600-foot lock remains in place and will become auxiliary lock chamber to be used primarily by recreation traffic. The project also includes associated channel work, relocations and site-specific environmental mitigation. The majority of the Upper Mississippi River locks were designed and constructed in the 1930’s and the lock chambers are 600-ft. long. The 600-ft. lock chamber cause significant average delays to navigation because of double lockages required for tows larger than 600-ft.The new1200-foot lock will significantly reduce delays and increase safety. The combination of ecosystem and navigation in a single U.S. Army Corps of Engineers program required many years of coordination with both the navigation and ecosystem partners and it will alter the future of the Upper Mississippi River System to ensure it remains the vital transportation and ecosystem corridor for the next 100 plus years.
Engineers Far From Ordinary: The U.S. Army Corps of Engineers in St. Louis takes a look at the story of the St. Louis District beginning with the rich and legendary history of the river as well as the modern history of the District’s innovations in response to the challenges of simultaneously maintaining and regulating navigation, protecting again flooding, and protecting the environment.
America the Beautiful National Parks and Federal Recreational Lands Interagency Passes are available for purchase at St. Louis District Lake Offices and Visitor Centers.

Latest News Releases

Rend Lake Dam Road Closed Starting January 10 for Maintenance
1/8/2024
The Rend Lake Dam Road will temporarily close to all traffic beginning at 7 a.m., Wednesday, January 10 for bridge maintenance. This closure will remain through midsummer until maintenance work is...
Repurpose Your Live Christmas Tree for Fish Habitat
1/4/2024
Repurpose your live Christmas tree by donating it to the U.S. Army Corps of Engineers Rend Lake Project for fish habitat. Donated trees will be bundled together and placed in the lake to create...
Rend Lake Announces the 2024 Small World Program Schedule
1/4/2024
Each month, the U.S. Army Corps of Engineers at Rend Lake hosts a Small World environmental education program designed for children five years old and younger, at the Rend Lake Visitor Center. This...
Student Internship Opportunities at Rend Lake for Summer 2024
1/4/2024
The U.S. Army Corps of Engineers Rend Lake Project is seeking qualified candidates to fill student internship vacancies for the 2024 summer recreation season. The U.S. Army Corps of Engineers offers a...
U.S. Army Corps of Engineers seeks comments on draft report of Meramec River study near Fenton, public meeting set
12/20/2023
ST. LOUIS – The U.S. Army Corps of Engineers, St. Louis District, released the draft report for the CAP 205: Meramec River near Fenton, Mo., Flood Risk Management Study for public review. The report...

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The St. Louis District is responsible for maintaining a navigation channel nine feet deep and 300 feet wide on 300 miles of the Mississippi River from Saverton, Missouri, to Cairo, Illinois. We are also responsible for maintaining a navigation channel on the lower 80 miles of the Illinois River as well as the lower 36 miles of the Kaskaskia River. Strategically situated at the crossroads of three major river systems, the St. Louis District is also located at the critical transition point on the Mississippi River where it is a “locking river” north of St. Louis and the “open river” from St. Louis on south.