ST. LOUIS (April 23, 2013)--Shipping has resumed along a 15-mile stretch of the Mississippi River near St. Louis after the U.S. Coast Guard determined that 11 barges that sank last weekend in the rain-swollen waterway aren't a hazard to navigation.
Communities along the river and other waterways throughout the Midwest are keeping an eye on the makeshift levees that are holding back floodwaters.
The rain that's expected from Oklahoma to Michigan through Tuesday could boost some stretches of rivers to an even higher crest than had been forecast earlier.
A hydrologist with the National Weather Service says the latest rainfall could be especially troubling for communities along the Illinois River, which is headed for record-high crests.
In Clarksville, Mo., on the Mississippi River, a makeshift floodwall of sand and gravel was showing signs of strain, and crews are scrambling to patch trouble spots.
Downpours last week produced sudden flooding throughout the Midwest.