8% grade

Theres a ~14, probably long, mile long 10% downgrade in Wyoming on US 14 Alt.


Not fun in a truck.

 

Theres one that it says max speed 10 an i think is a 9% grade in PA that one dont try too be tuff u will defently go over the mountain i took it down 3rd gear jake break on nice an steady

 

The steepest grade possible is 100% but I'd suggest staying on the roadway.

 

If you're ever going through Mountain View and decide to run 58 north from 14, when leaving the town of Guion, the hill is so steep I was in 3rd (of 18) and losing speed grossing 80K with 485 HP and 1660 ft lbs under the hood and 4.17 gears in the rear...luckily I topped the hill before I needed to grab yet another gear, because I'm not sure I could've without coming to a dead stop. I don't know what the actual grade is, but it's the steepest, longest hill I've ever climbed.

 

Nope. Pallets literally weigh a ton. If it shifts and breaks the trailer containment then... whose fault is that?

Some hazmat loads on pallets recieved a special skid fork hammered into the bottoms to make sure they stay put during braking.

I never paid attention much to the cargo on any grade uphill. You do your best in securement and then go on up.

 

I pull flatbed, so I feel much better about securement than when I pulled dry van.

I think the steepest posted grade on a paved road I ran was 21% on a narrow two lane in PA. I know I pulled a paved hill much steeper than that in eastern Ohio, after dropping the 85,000 lb oversize trailer I bobtailed down that hill in low range with the Jake on high and having to snub brake. Getting up it with that trailer was the only time I topped out a hill in granny low and considering getting the seat belt off and the door open, barely above idle at the top.

For those of us that run off paved roads, hills above 20% are fairly common. Add in a fresh rain or ice storm to make traction "fun" and it gets to be a challenge. You need enough throttle to get up, but not so much you spin out and bury the tires.

 

Logging in the West, there are lots of sections of haul roads that are 20% plus. On dirt. Many times have to push or pull trucks up using loaders or skidders. Lower trucks down with a slider or cat. Had a job one time where we had switchbacks. Had to use a short logger -straight truck. He would go forward one section, then back up the next, the forward. Don't remember how many sections there were but it was several backups.

 

9% in Death Valley for about 9 or so miles. 15% in Michigan, did that one a lot for an entire week. 21% in Alaska, would rather not do that one again. On some of them it is fun or a challenge to see if you can hit the next lower gear without missing it. Other ones you are almost afraid to shift for fear of not getting it into the next lower gear. Heck I even killed an engine on a 9% grade trying to take off in low gear. It happens and you learn from it.