Low Mississippi threatens barge traffic again
HELENA-WEST HELENA, Ark. – Low Mississippi River levels are again putting the squeeze on shipping, with Arkansas’ 2012 harvest hobbling out on less-than-full barges.
The Mississippi, the nation’s largest river system, drains all or parts of 31 states and two Canadian provinces. Its watershed covers about 1.25 million square miles, or 41 percent of the United States’ landmass. For hundreds of years, the river has been a critical highway for agricultural and other products. According to the U.S. Army Corps of Engineers, the river and its tributaries moved 487 million tons of cargo in 2008.
However, widespread and prolonged drought this year meant there’s been little to drain into its 2,350-mile length. In August, levels were so low that shipping was halted briefly. (See “Grain piles up as drought-lowered Mississippi River slows barges,” http://bit.ly/11baqNY)
“All of our ports at Helena are open,” Robert Goodson, Phillips and Lee county Extension agent for the University of Arkansas System Division of Agriculture, said Thursday. “Barges are leaving at about 70 percent full.”
When the navigation channel is shallow, shippers pack lighter loads allow the barges to sit higher in the water, known as reducing draft. Draft is the minimum depth at which a boat can navigate a waterway.
The port at Osceola, in Mississippi County, was closed earlier this year due to low water, but is open thanks to dredging in late September and October. The only lower Mississippi harbor closed as of Tuesday was Northwest Tennessee Port Harbor, which was scheduled for dredging into early December.
For grain merchandisers, a shallower river means more costs, Scott Stiles, extension economist for the University of Arkansas System Division of Agriculture, said on Friday.
“By reducing drafts, a merchandiser has to use more barges to move the same volume of grain you normally move,” he said. The lower river also “reduces the number of barges the towboat can push at one time.”
The low water has shippers worried. On Tuesday, the American Waterways Operators, National Waterways Conference, Waterways Council, and 15 other organizations asked President Obama for a presidential declaration of emergency. The groups are asking the president to direct the Corps of Engineers to:
- Remove exposed rock pinnacles near Thebes and Grand Tower, Ill., and
- Release an amount of water from Missouri River reservoirs that would preserve the river’s 9-foot shipping channel.
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