SAN FRANCISCO LIGHT RAIL
PCC Crossing

The are indeed few -- if any -- other locations in the United States where parallel surface electric rail tracks cross another set at grade.  Church and Market Sts. in San Francisco is such a place. 

An F-line streetcar heading for Fisherman's Wharf has just crossed Church in this view.  Before long an Embarcadero-bound J-Church train will approach from the south.  The subway carries four other light rail routes below Market, and there is a station located here.

The original portal for the Twin Peaks Tunnel -- prior to the subway -- was located a bit out of view to the right.

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