Federal investigators have concluded that steel plates on the interstate bridge that collapsed last summer in Minneapolis were inadequate to hold the structure together and appear to have been what allowed it to fail, killing 13 people, two officials familiar with the investigation said Monday.
The National Transportation Safety Board (NTSB) plans to call Tuesday for states to perform safety assessments on the so-called gusset plates in steel girder bridges any time they add weight to a bridge, the sources said. Design changes in 1977 and 1998 added additional pavement and concrete barriers that increased the weight of the Interstate 35W bridge in downtown Minneapolis.
A design flaw?? That is impossible! It is a well known law of physics that things fall to the earth because of Republican tax cuts!