::The current row ordering does have that advantage.  I didn't even try to make any of the west branch crossings be links.  Still, this is a very river centric list, and contains other than just highways, so I'm not sure how much highway conventions should hold sway.  I'm more concerned that as the river swerves one way or another that you don't jump which side is listed first.  The west branch practically loops, it starts out running west near Carrollton, then north, east, and finally south.  There's at least one place where the town is in a loop, and I would have had to list the town first where the highway crossed into town and second where it crossed out, to meet the "mile marker order standard". Even a 90 degree bend in the river could do it.  Does the Mississippi article have any discussion on this?