Something tells me that insurance on gasoline trucks doesn't cover the replacement of a bridge. Maybe it should since they can be very destructive.
There was a very small town near where I grew up. In the middle of this town the main road took a sharp turn. A gasoline truck once missed this turn. All that was left of the town was the bank vault. In many years I never saw the town rebuilt.
The damage done by this particular truck doesn't seem astonishingly high, compared with what such trucks might do in other circumstances. I don't know how much a section of bridge costs, but the truck knocked out two or three sections of fairly ordinary elevated highway. I would think that a truck that exploded near a suburban shopping mall gas station would do a lot more damage, and that trucking companies would have to be covered for that.