This graffiti on the freight train bridge over the Rio Solada Parkway caught TempeHiker's eye.
The clearance sign contains math: Ignoring units, square root of 16 is 4.There are no clearance signs on the light rail bridge.
This is a moot point if the clearance of the light rail bridge is equal to or greater than the clearance of the freight train bridge, but what if it's not?
Creator: Gerald D. Thurman
[gdt@deru.com]
Created: 11 July 2006