----- Original Message ----- 
 From: Kelvin A. White
 Can somebody please advise the prototype clearance heights (to the 
underside  of a bridge) for hi-cube boxcars and double stacks, I want the 
former and  want to decapitate the latter!
> > > > > > > > >
 Kelvin

 The following is based mainly on the 1997 Car & Locomotive Cyclopedia.

 Autoracks, bi- & tri-level, are typically 19' 0" from rail head to top of 
roof.  This includes the new articulated bi-levels.  But with clearances 
being increased to 20' 2" for double-stacks, some auto racks are been made 
20' 2" high.

 The C&LCyc show typical "Excess Height" Boxcars ranging from 16' 11" to 17' 
1" in height.

 A typical trailer-carrying flatcar has a deck 3' 5½" above railhead. 
Trailers are restricted to 13' 6" in height

 The Thrall double-stack well car is said to have a well bottom 12" above 
rail head.  The Gunderson MaxiStack is described as having a height of 20' 
2" when loaded with two 9' 6" containers.  Remember containers are either 8' 
6" or 9' 6" in height.

 A friend of mine, a CSX freight conductor by trade, brought home from work 
a  poster they had, stating that they cannot let a double stack thru the 
Detroit - Windsor tunnel if it has two containers unless they are both of 
the 8' 6" height type.  One container of 9' 6" height of course is fine.

 Tom Hawley  --  Lansing Michigan



 
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