Enforcement · 4 min read · Updated
Preventing bridge strikes
Bridge strikes are almost entirely preventable and land on the operator, not just the driver. Make sure every driver knows the actual travelling height for today's combination and it is displayed in the cab, plan routes with truck-specific mapping, and re-check height after any trailer or load change.
Bridge strikes happen thousands of times a year on Britain's roads and railways, and each one is dangerous, disruptive and expensive. They are also almost entirely preventable - which is exactly why DVSA, Network Rail and the Traffic Commissioners treat a strike as a serious mark against the operator, not just bad luck for the driver.
Why they happen
The causes are consistent: a driver who does not know the true travelling height of the vehicle (especially with a high-cube trailer, a raised suspension, or a load on top), a route not planned for low bridges, sat-nav that is not truck-specific, and complacency on a familiar road where a trailer swap has changed the height.
The prevention basics
- Know the height. Every driver must know the actual travelling height of the vehicle and trailer they are on today, and it must be displayed in the cab - correct for the current combination, not last week's.
- Plan the route using truck-appropriate mapping that accounts for height and weight restrictions, and brief drivers on low bridges on their run.
- Re-check after any change - a different trailer, a raised load, an air-suspension setting all change the height.
- Build it into the walkaround so height awareness is a daily habit, not an afterthought.
- Know what to do if it happens - stop, do not reverse away, keep people clear, and report a rail bridge strike to the railway immediately using the number on the bridge.
The operator's exposure
A bridge strike will usually mean a report to DVSA and can bring the operator's whole management system into question - drivers' hours, training, route planning and defect reporting all get looked at. A pattern, or a strike revealing weak systems, is a fast route towards a public inquiry. Good, evidenced prevention is your protection.
How OperatorCompliance helps
OperatorCompliance keeps vehicle and trailer records, driver training and induction documents, and an incident log with photos and detail - so height information and driver briefings are recorded, and if a strike ever happens it is captured and dealt with as evidence of a system that takes it seriously. See how it works or start a free 14-day trial.
This guide is general information, not legal advice. Check the current bridge-strike prevention guidance from DVSA and Network Rail on GOV.UK.
Frequently asked questions
What should a driver do if they hit a bridge?
Stop and do not reverse away, keep people clear of the vehicle and the structure, and if it is a railway bridge report it to the railway immediately using the phone number and bridge identification displayed on the bridge, so trains can be stopped. Then report it to the operator. The priority is preventing a train collision, not moving the vehicle.
How can operators prevent bridge strikes?
Make sure every driver knows the actual travelling height of the vehicle and trailer they are on today and that it is displayed in the cab for the current combination. Plan routes with truck-specific mapping that accounts for height and weight restrictions, brief drivers on low bridges, and re-check the height after any trailer swap, raised load or suspension change.
Who is responsible for a bridge strike?
The operator carries the responsibility, not just the driver. A strike will usually mean a report to DVSA and can bring the whole management system into question, including drivers' hours, training, route planning and defect reporting. A pattern, or a strike that reveals weak systems, is a fast route towards a public inquiry, so evidenced prevention protects you.
Why do bridge strikes keep happening?
The causes are consistent: a driver who does not know the true travelling height, especially with a high-cube trailer, raised suspension or a load on top, a route not planned for low bridges, sat-nav that is not truck-specific, and complacency on a familiar road where a trailer swap has quietly changed the height since last time.
Sources
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