When an oversized load strikes a bridge or clips an overpass, it looks like one driver misjudged one clearance. It is almost never that simple. Behind the load is a permit, and the permit is a chain of names.
An oversized or overweight load cannot legally move in Texas without a permit, and the permit is not a formality. It fixes the dimensions, sets the legal route, and puts conditions on the trip: escorts, daylight-only travel, speed, the roads that are off limits. Someone measured the load. Someone chose the route. Someone approved it.
That is where the responsibility spreads. The height of a load against the clearance of a bridge is a known, checkable number before the truck ever rolls. When a load that measured too tall meets a bridge that was always that low, the failure happened at a desk before it happened behind a wheel. The route survey, the permit application, and the clearance tables exist precisely so this does not happen.
So the questions a permit forces are the ones that decide the case. Who measured the load, and how. Who applied for the permit, and what dimensions did they swear to. Who picked the route, and did they check the low bridges on it. Did the carrier follow the permit's conditions or cut a corner to save a day. Each answer points at a different party, and more than one can be at fault.
The lesson: an oversized-load crash is a documents case. The permit file, the route survey, and the clearance records tell you who was supposed to catch the problem, and who did not.
In Texas, permits for oversize and overweight vehicles are governed by Transportation Code Chapter 623 and administered by the Texas Department of Motor Vehicles; federal size limits on the Interstate system appear at 23 CFR Part 658. This is general information, not legal advice.
