I too wonder how much longer Big Bay can hold out, especially with that Home Depot just a mile away and this brutal recession. A recent Crains Chicago Business article mentioned General Iron Industries in the context of the scrap metal business being down also.
Chicago Terminal\'s operating costs are probably fairly low and variable I am guessing, with the bulk going to maintenance on that SW, fuel, and wages on an as-needed basis, plus rent to UP for use of the North Avenue Yard. The crew can work the Elk Grove industrial park on off-days.
I am guessing that they probably receive a flat switching fee from UP for handling cars on the \"last mile\" of around $200-$400 per car or so. And they now have income from AOK for storing all of those gondolas.
At least ROW maintenance is nil for Chicago Terminal as most of its rails are set in concrete streets maintained by the city as is the Cherry Street bridge.
I suppose in a worst-case scenario if Big Bay went out of business and Finkl Steel eventually relocates to the South Side, and Chicago Terminal pulled out as a result, UP could always work General Iron Industries and Sipi Metals. The remaining track to General Iron would be a long spur essentially, though one that uses a drawbridge. General Iron Industries also has water transportation as an option since today it ships out shredded metal on barges. I doubt UP would want to give up a reliable customer for hundreds of gondolas per year.
Like other industries, General Iron Industries may also decide to take over the switching themselves, again, in a worst-case scenario where the remaining business on the lines does not justify the continued operation by Chicago Terminal.