[Hunble]

Thanks Gideon7 for the picture. I have driven over this bridge thousands of times and could not figure out what people were talking about. What scouring of bridge pillars?

One picture is worth a thousand words, and you showed us exactly what I was trying to say.

[idkfa]

Another view and info here
http://www.visi.com/~jweeks/bridges/pages/ms16.html