Forum Discussion
mimalmo
Jan 15, 2013Explorer
dubdub07 wrote:
18%. That's ridiculous. The steepest highway in America is 10% and I believe it is in Wyoming. An 18% driveway doesn't count.
Interstates, highways, county and city roads all have different grades that they permit.
Here's some examples of US city streets that are over 30%.
http://googlesightseeing.com/2009/06/the-worlds-steepest-streets/http://googlesightseeing.com/2009/06/the-worlds-steepest-streets/
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