-> Might I suggest you call the tunnel authority, and ask them
-> to explain to you the improbability of this happening?
->
-> They will explain to you, that there is NO WAY that the car
-> could "rupture the tunnel wall".
->
-> It always helps for one to have their facts in order, before
-> posting.
MR> ,
MR> ,
MR> Do explain how there was 'no chanse' as you put it for it to
MR> rupture, after all the force of a car crashing into it, as
MR> well as the following explosion could easly rip a hole in
I doubt it.  I don't have my Army demolition card handy
right not but if memory serves me to but a three foot
diameter hole in 12 inches thick reenforced concrete
wall it takes almost 100 pounds of untamped TNT.  I
have never worked on tunnels but I'm fairly sure that
the concrete is more then 12" thick.  Also it has
something (water or earth) supporting it from the back.
If I had to guess it would take a 200+ pound tamped
shape charge to punch through the concrete shell of a
underwater tunnel.
MR> the wall. Also even if the explosion or fire wasnt enough to
MR> collaspe a wall, the smoke would fill the tunnel iun less
MR> then 5 min, with the tunnel being over 3 miles long, and
I don't know what tunnel your talking about but most
tunnels have ventilation systems.  If they didn't the
exhausts gases would built to a toxic level.  The
system might not be able to remove all the smoke but it
could remove enough to prevent the tunnel from filling.
                      Remember:  Freedom isn't Free!
--- timEd-B11
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