Forum Discussion
paulj
Sep 12, 2022Explorer II
On Google Maps Sat view, I looked at I90 west of Missoula. Mostly I90 is above the cross roads. With Streetview I checked Butler Creek Rd, which goes under I90. It has 13'6" signs. So you are fine on I90.
US93 goes over, without any warning signs.
16 ft is the standard for Interstates (with limited urban exceptions).
US93 goes over, without any warning signs.
16 ft is the standard for Interstates (with limited urban exceptions).
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