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    It's a rare sight indeed to see a light rail route cross 
	an active freight line, but such is the case here, near the Port of San 
	Francisco.  This is one of two locations where T-Third crosses Union Pacific spurs coming 
	off the Caltrain mainline to serve local customers.  
 Muni will be building a second major light rail maintenance facility -- the 
	other one being near Balboa Park -- a few blocks 
	north of here.  Switches are in place at two street intersections with 
	the T-Third.
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