The NTSB just finished its briefing on the investigation into the I-35W bridge collapse. MPR and AP have stories. Basically, the NTSB says it was a design flaw in the bridge’s gusset plates. Here’s part of the NTSB release: ************************************************************ NTSB URGES BRIDGE OWNERS TO PERFORM LOAD CAPACITY CALCULATIONS BEFORE MODIFICATIONS; I-35W INVESTIGATION CONTINUES ************************************************************ Read more