Re: B&LE triple offset hoppers

Cyril Durrenberger

tI wondered if they somehow
found a way (post-WWII) to process the ore at the mine in such a way
that made it purer and denser. That would be the one explanation I
can think of for a switch from triples to shorties, but that is pure

It is interesting that in most cases the railroads in Michigan and Minnesota carried iron ore in specially built ore cars, while the eastern railroads on the other end of the chain usually used standard hopper cars. In some cases the Minnesota railroads would use ore cars to ship coal to local users.

In some cases the mining companies would send the ore to a washing plant to remove sand and other impurities from the iron ore and in some cases it went to a sintering plant prior to being taken to the docks. But natural ore, as it was called, was not normally chemically treated prior to shipment from the docks. In the late 1960's the taconite process replaced the natural iron ore when the stocks of natural ore were exhausted (or in some cases in shaft mines it became to expensive to remove). More information on this is probably beyond the scope of the list. There are other sites where you can locate more information if you desire it.
Cyril Durrenberger

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