Get on a boat on the upper Mississippi River, and you'll eventually come upon a looming concrete structure stretching across the river's main channel. It's called a lock and dam, and it's a distinct ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS (AP) — The U.S. Army Corps said it ...

Work is underway to build a new island in the Mississippi River near Hastings, a $10 million project aimed at preserving the lock-and-dam system that allows some 10 million tons of goods to be shipped ...

ST. LOUIS — The U.S. Army Corps said it will spend $732 million to expand a lock and dam system to help barges more efficiently transport millions of tons of corn, soybeans and other goods along the ...