Grain and coal aren't the only commodities that have backed up this year because of railroad congestion and delays.
Taconite shipments from northern Minnesota have also been slowed by the logjam, and industry officials are concerned about moving enough iron ore to their steelmaking customers before the Great Lakes shipping season ends for the year.
The issue came to light when Sen. Amy Klobuchar raised it recently at a Senate Commerce, Science and Transportation Committee hearing. She said one mining company in Minnesota has 250,000 tons of taconite sitting on the ground and another has 85,000 tons stockpiled as a result of rail service disruptions.
"In total we have 2 million tons of iron ore pellets that we want to send out — and make money for our country and get more jobs — that are just sitting there in a pile," she told Ed Hamberger, president and chief executive of the Association of American Railroads.
The pellets are produced near mines and transported by special rail cars to Duluth, Superior and Two Harbors. At the ports they are loaded onto vessels and carried to steelmakers in Cleveland; Gary, Ind.; and other ports on the lower lakes.
The backups were apparently caused by a shortage of locomotives and train crews to move the rail cars from the mines to the ports, combined with last winter's weather that shortened the shipping season.
Farmers, grain elevator managers, coal shippers, utilities and Amtrak executives have complained about rail delays across much longer distances between Minnesota and western states. At federal hearings this year in Washington and Fargo, N.D., and at other meetings, they have testified that service has been poor and freight rates have skyrocketed. Some accused the rail firms of giving preference to more lucrative North Dakota oil shipments.
Rail firms have denied that they favor crude oil over other cargoes and have told the Surface Transportation Board that regulates railroads that the slowdowns are a result of increased shipments of all commodities, not just oil.