[asheshouse]

The collision boxes are imported with the main mesh for the object.

So for my example these are:

CollisionObject c54a
CollisionObject c55a
CollisionObject c56a
CollisionObject c57a
CollisionObject c58a
CollisionObject c59a
CollisionObject c60a

The coordinates for these a in the SSC.msh files
If you move the SSC.msh the collision boxes will move with it.

Normal AI route for aircraft steers around the bridge so if the bridge is located to the other side the AI aircraft may run into it. I am not certain that this will happen it is just a risk.

To understand just start changing x y z coordinates in the hier.him
You must change the dmg model coordinates by the same amount.
Masts and Stacks will be left behind I think, but you will find it easy to move these once you have moved the bridge.

Ashe