"Sheldon" > wrote

> On Aug 3, 8:08?am, "Nancy Young" > wrote:

>> I think the design of this particular bridge played a big role. 40 years
>> is not old for a bridge.
>
> More than mechanical design probably inferior grade steel. I'd bet my
> bipee when/if the original specs are checked against what's actually
> there they'll find a lesser grade of steel than what was called out...
> likely not in error, more at typical construction project graft. The
> powers that be covered it up then, ditto now.

When I looked at the before picture I thought, what, were toothpicks
not available? Looked like Tinker Toys. Of course, I'm not an
engineer, and steel is deceptively strong. Apparently not *that*
strong.

nancy