Da nada; but, it's not *my* explanation. It comes from several engineers who do bridge inspections.
Terry On 8/4/07, R.C.Macaulay <[EMAIL PROTECTED]> wrote: > Terry wrote, > > Such a failure would > cause the superstructure to move perpendicular to the direction of > travel (the lateral shift mentioned by the head of the NTSB) and > eventual collapse of the entire structure. > > Thanks Terry, > I had picked up on the lateral movement report.. Your explanation makes > sense. > > > Richard > >

