Well that makes a little more sense, I've seen trucks with the cheaters father forward but wasn't sure why. So to scale the max you need a certain amount of external bridge as well as internal bridge? We don't do stuff like that out here.
Heavy Haul Miscellaneous Thoughts, Ideas and Questions
Discussion in 'Heavy Haul Trucking Forum' started by Oscar the KW, Feb 8, 2015.
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This is what gets most people here is the inner bridge. We have one MCS officer that is VERY good at judging distances. I got him by 3 feet once..... LOL I was 107 feet long and you don't need pilots until you get to 110.
It is very hard to get the length for the bridge and weight on the steer all at the same time. So most of the time you will see these trucks only running 100-103k gross, unless they don't realize that about the inner bridge lengths. Most people count the axle groups only and think that is good.Oxbow, TripleSix, passingthru69 and 1 other person Thank this. -
-- Outer bridge must be 69'
-- With 12 on the steer, that leaves 93,500 for inner bridge
I agree completely with these two.
Per the Oregon Extended Weight tables (table 2), 93,500 must have an inner bridge of 60' -- since 59' allows for 93 and 60' allows 94k. The 57' you mention above only allows for an inner bridge of 91k - am I correctly surmising that that is where the 100-103k gross #'s come into play??
So, in reality, the minimum outer bridge, for 105,500 would be 72', no? - This is with 12k on the steers.
To get 69', you'd have to manage 15k on the steers. -
@glitterglue I am going off of the Montana tables and I also have 8 axles on the ground counting the steer. On 7 axles I can scale a gross of 93,250 on a 57 foot spread. Where the 100 to 103k comes in is with the trocks that cannot achieve that inner bridge because the truck is too short or the kingpin is too deep.
With 8 axles on my chart 69 feet is what you need to scale 105,420. Close enough for me. The Oregon chart may be different. I would have to look but the chart for Montana follows the federal chart.glitterglue Thanks this. -
On the Oregon charts -
With 7 axles, 57 feet, Oregon only allows 91,000
With 8 axles, 69 feet, Oregon allows 105,500
Wish Oregon would get it together and be more like the other NW states.....cnsper Thanks this. -
Oxbow Thanks this.
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I know when I lived in KS we were tagged for 85,500 and we pulled tri axle hoppers, in a single dual single configuration. I swear we couldn't do that in the interstate but I was told you could.
Oxbow Thanks this. -
Seems like Iowa you have to stay off of the Interstate over 80K, unless it is a permit load.
I had a T600, about a 240" wheel base, and 48' spread axle trailer with the axles clear to the back, and I could license 86K but could only bridge a bit over 84k. That was back in the 90's though. -
Yeah in Iowa you are not allowed to be on the interstate over 80,000. But when I pulled a livestock trailer there it didn't keep me off the big road.
Oxbow Thanks this. -
You were a REBEL. Probably had a confederate flag on the grill too?
Oxbow Thanks this.
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