Peacock's Lock Viaduct

I've been meaning to go take some pictures of this very architecturally unique bridge. Around the holidays when I'm home visiting family hopefully I'll get around to it. I was wondering if anyone knows about the time of day the Reading & Northern would be running over the bridge. I believe its the one over the Schuylkill north of the city after the Reading's Schuylkill branch splits off from the old PRR branch and NS's mainline east to Bethlehem. This would put it just west of the US Route 222 and PA Route 61 interchange near Ontelaunee. Is that the correct bridge? Also, is there any good location to get pictures from?