From: gl4317@yahoo.com   
      
   In article ,   
    Stephen Sprunk  wrote:   
      
   > On 18-Jun-14 21:15, Glen Labah wrote:   
   > > Also, in the USA there is the prospect of having an at-grade crossing   
   > > with a freight line where clearances would not allow overhead.   
   >   
   > DART LRT has two at-grade crossings with UP freight lines; the wires do   
   > go up rather high there, but the pantographs can still reach them.   
   >   
   > S   
      
      
      
   That's interesting.  SEPTA trolleys crosses a CSX line in at least one   
   location as well.  What type of clearance do they have though?  Double   
   stack containers or some of the new auto racks are extra-high clearance,   
   but if they aren't operating those over that line it wouldn't be a   
   concern.  In certain other places, additional clearances might be a   
   concern.   
      
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