[Chode]

how gentle a grade to you need in a place that never has snow or ice?

we have steeper grades than that here in the NE where we DO have snow and ice

[Alberta's Child]

It has nothing to do with snow and ice. It has everything to do with travel speeds, vehicle size, and safe stopping distance over a vertical (crest) curve.

I can actually check this out when I'm in the office next week. Can you tell me where that photo was taken?