Source: picture#39. This picture is a little out of focus, but shows the right edge of the top beam that is hidden behind the transit in the next picture.
Source: picture#41.
Source: picture#44.
Source: picture#66. The lower beams looks to be in pristine condition.
Source: picture#67. This picture is of major interest. That is an interesting "burn mark" near the right side of the picture, just to the left of that silver air tank that is standing vertically. Was that burn mark left by det cord? There is also a "cooked" region near the left end of that beam, just below the line of three truck wheels.
Source: picture#70. I'm amazed how straight the ends of those beams are.
From picture#73. Straight beams. They appear to have fittings on the edges. Perhaps those are where the floors were connected?
Source: picture#73.