Warbird Information Exchange

I think you meant maximum allowable length. But that info is incorrect. Most interstate semi trailers are 53' in length. And when you add the tractor in, you have a combination length of around 70'. Maximum length varies from state to state. But regardless, you can get an oversize permit to haul a load that is over length, over width, over height and/or over weight from whatever state you're passing thru.

Sorry for not posting the complete context:

Directly quoted from US Dept of Transportation regs: http://ops.fhwa.dot.gov/Freight/publications/size_regs_final_rpt/index.htm#devices

Truck Tractor-Semitrailer Combinations:
The minimum allowable length limit for the semitrailer in this combination is 14.63 m (48 feet) or the grandfathered limit for a particular State. A State may not impose an overall vehicle length limit on a truck tractor-semitrailer combination operating on the NN or reasonable access routes, even if the trailer is longer than the minimum length required by Federal law. A State may not impose an overall length limit on a truck tractor pulling a single semitrailer or a limit on the distance between the axles of such a truck tractor.

Grandfathered lengths (without permits) are between 48-59 feet depending on the state.
Arizona: 57'6"
California: 48'
Oregon: 53'
Washington: 48'
Idaho: 48'
Wyoming: 57'4"

The B-1B had a "special" permit that allowed Boeing to transport its oversized 135 foot fuselage (sans nose) from Arizona to Seattle along I-5.
It occupied 2 lanes and was parked during the day... it could only travel at night when there was reduced traffic.

I see oversized sailboats, fishing boats, and weird metal conical/cylindrical objects (must be from Roswell NM) traveling up and down I-5 every day.
Many have pilot car(s).

Yep, only takes money.

Rudi, thanks again for your post...
Sorry to get off subject.

_________________
Keep your PDI centered!

Stebbins operated in Alaska for a brief period a commercial contract. And there is a long term project nearing completion (I had doubts!) at Palmer,AK and the owner had at some point some a Part xxx permit (not much familiar on that subject) where he would be able to operate commercially within state Alaska - but not sure if that permit is still current or the plan viable.