You'd have a rough time on the Mackinac bridge in MI. The center two lanes are steel grating so you can see straight down. I usually use the concrete curb lane, mainly because the grating can be slippery.
10 Ducati 1098 Streetfighter S - "Sleipnir"
09 Kaw Versys
"The problem with Socialism is that you eventually run out of other people's money" _____ Margaret Thatcher