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Open Roads Forum  >  Roads and Routes

 > What is the "Flatest Route"?????

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fla

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Posted: 07/15/12 07:36pm Link  |  Print  |  Notify Moderator

From Sioux Falls to Washington state... What would be the Flatest route? Worried I don't have enough to make it over/....
Pulling Northtrail FB21 (~25 ft) with E150 4.2 v8... Got this far from Florida Ok but??????

Thanks for your help

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Posted: 07/15/12 07:48pm Link  |  Print  |  Notify Moderator

I-90 going west is about as flat as anything out west will be. Interstate grades can't be any worse than 6%. Lookout Pass at the MT-ID border is a bit steep, but you'll be going down not up! To get anything much flatter you'd probably have to go south on I-15 at Butte to I-84 and that would add many miles to your trip.


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jamesu

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Posted: 07/16/12 08:36am Link  |  Print  |  Notify Moderator

I-90 all the way.

You'll have Lookout Pass at the MT/ID border, 4th of July Pass west of Kellogg, ID and Snoqualmie Pass over the Cascades heading into Seattle. Piece of cake.

My rig's longer than yours, I tow with an F-150 also, and I make it over the mountains just fine. I don't go as fast as a lot of other rigs pulling over the Passes, but my objective is to get over the top not to get there first. Leave the overdrive "off", use your head, and don't be in a hurry. You can do it.


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Posted: 07/15/12 08:06pm Link  |  Print  |  Notify Moderator

Where in Washington are you headed? Where we don't have mountains we have deep river canyons. I don't want to scare you away, but you can't enjoy the state without going up and down a bit. The pass climbs in Montana and Idaho aren't any worse than the ones in Washington.

On interstates you have a right lane where you can take your time.

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Posted: 07/15/12 08:17pm Link  |  Print  |  Notify Moderator

I'm confused again. Don't you have to go up the grade before you can come down the other side. From St Regis, Mt to Lookout pass you will climb about 2,000 ft. Really not a bad climb. Very slight grade through Butte, MT


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path1

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Posted: 07/15/12 09:29pm Link  |  Print  |  Notify Moderator

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* This post was edited 03/10/13 11:45pm by path1 *


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Posted: 07/16/12 04:02pm Link  |  Print  |  Notify Moderator

You also will want to be very diligent on descending these passes. Keep your gearing down and speed down. Auxillary braking is encouraged.


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Posted: 07/16/12 06:26pm Link  |  Print  |  Notify Moderator

US2 is a frequent topic, particularly among those going to and from Glacier NP. Someone just mentioned driving it in a thread about taking the TransCanada back east (Canada section).

In terms of passes it may be easier than I90, since it has a low pass cross the Continental Divide just south of Glacier. But it's pass over the Washington Cascades is a bit harder than I90, but also a bit more scenic. It's perfectly flat until Glacier NP.

Portions of US2 are divided (but not limited access), other parts are still 2 lane.

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Posted: 07/16/12 05:59pm Link  |  Print  |  Notify Moderator

Thank you all very much.. I feel better about going now... I90 is the favorite.
We want to get to the coast and go down to california Thru Oregon. I also want to eat some of those famous dunginess crabs in Washington...

What do you all know about hwy 2 near the Canadian border? Steep or better?

Thanks again

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Posted: 07/16/12 10:35am Link  |  Print  |  Notify Moderator

Also run your 4 way flashers when going a lot slower than the normal flow of traffic up the grades.

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