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Old 01-11-2019, 07:29 AM
 
Location: Aurora, CO
6,551 posts, read 10,254,632 times
Reputation: 9796

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Quote:
Originally Posted by cebuan View Post
"Rental!" Anybody going up the grade at 70mph is assumed to be driving a rental car, nobody would do that in their own car.
I have a highly-underpowered 2011 Honda Fit that I've driven up both tunnel approaches at 65-70mph several times. It's NBD. You don't have to redline it to go the speed limit.
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Old 01-22-2019, 08:04 AM
 
Location: Greater NYC
2,907 posts, read 4,920,365 times
Reputation: 3872
Quote:
Originally Posted by bluescreen73 View Post
I have a highly-underpowered 2011 Honda Fit that I've driven up both tunnel approaches at 65-70mph several times. It's NBD. You don't have to redline it to go the speed limit.
True. Having lived there for more than a decade I can vouch that not only can you do it, I'd say half of the cars on the road are doing 65 + coming down into Silverthorne AND go back up, eastbound. My spouse included. For me it's nerve-racking EVERY TIME and I am not a cautious driver.... the steep, steep grade COUPLED with the high rate of speed is nearly too much for me coming into Siverthorne. I'd rather drive Independence Pass than out of the tunnel west-bound because you are forced to go slowly.
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Old 01-27-2019, 07:21 PM
 
1,004 posts, read 575,790 times
Reputation: 1358
Quote:
Originally Posted by BarstowC View Post
There is an old thread that discussed the same subject:


What US interstate highway has the steepest grade, and where?


Most of the posts in this thread talk about a 7% grade, but in reality they are 6% grades.


But I did find this:


The steepest grade on the Interstate system is on I-24/US-64 Westbound over Monteagle Mountain, TN. It's an 8% grade.
Really? That area I-24/US-64, VA Fancy Gap, WV/Ohio, to me does not seem as steep as Saluda Mountain near Hendersonville, NC.
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