How to Avoid Bridge Strikes: Practical Tips Every Driver Needs to Know
Bridge strikes remain one of the most disruptive, dangerous, and expensive incidents on UK roads. Every year, thousands of bridges are struck by vehicles that are too tall or incorrectly routed, causing
major disruptions,
vehicle damage,
rail delays, and even risking
lives.
For HGV drivers, avoiding a bridge strike isn’t just about protecting the load. It’s about protecting
your licence,
your safety, and
the reputation of your employer.
In almost all instances, Bridge Strikes are preventable when drivers follow correct procedures and route planning practices, so, we’ve put together a practical, easy-to-follow guide on how to prevent bridge strikes on every journey.
1. Know Your Vehicle Height — Don’t Guess
You must know your
exact vehicle height, including the cab, trailer, load, and any equipment attached. Height can change due to factors such as
fifth-wheel adjustments or changes in load status.
Before setting off:
- Measure the overall vehicle height
- Check the height of the trailer and its load
- Display the correct maximum height clearly inside the cab (a legal requirement if your vehicle exceeds 3m)
Do not rely solely on the headboard, as it may be inaccurate depending on how the trailer is coupled.
2. Plan Your Route Carefully — Use HGV-Specific Navigation
Shortcuts and Sat Nav’s that are sold for Car Users
are key contributors to bridge strike incidents.
Always use:
✔ HGV-specific sat nav systems
✔ Approved transport routes
✔ Company route directions (where applicable)
Avoid shortcuts to save time — they can lead straight to low bridges.
If you are diverted from your planned route, slow down and reassess.
If you’re unsure whether the diversion is safe for your vehicle height, stop in a safe place and re-route using an HGV system.
3. Understand Traffic Signs and What They Mean
There are two types of signs warn drivers of height restrictions:
- Red circles = Prohibition (Do NOT pass if you exceed the height displayed)
- Red triangles = Warning of an upcoming restriction
At
arch bridges, additional features may appear:
- “Goal posts” showing the usable height clearance
- White road markings showing the safe width for tall vehicles
Always position your vehicle centrally and only use the middle of the road when it is safe to do so.
4. Know the Lowest Bridges on Your Route
Identify the
lowest bridges along their planned route before departing.
This proactive approach helps eliminate surprise encounters with low clearances.
5. Stay Alert While En Route
Even with planning, you must always remain alert. Pay attention to:
- New or temporary signs
- Diversions
- Environmental factors such as weather or darkness
- Vehicle height changes after loading/unloading
If the height displayed on a restriction is
lower than your vehicle:
👉🏼
STOP. Do NOT attempt to pass -
The consequences far outweigh the delay.
6. If in Doubt — Stop and Check
If you’re unsure whether your vehicle will fit under a bridge, the safest action is to stop and seek advice.
No delivery deadline is worth risking:
- A bridge strike
- Your licence
- Public safety
7. Understand the Consequences of a Bridge Strike
A bridge strike has severe consequences including serious injury or death to drivers and passengers, significant financial costs for repairs and compensation, legal and regulatory action, and major operational disruptions.
These incidents can lead to fines, licence suspension or revocation, and damage to a company's reputation.
On the railway
- Potential derailments
- Catastrophic loss of life
- Train service disruption
- Major infrastructure damage
On road users
- Injury or fatality risk
- Severe traffic disruption
On drivers & employers
- Licence loss
- Prosecution
- Job loss
- Increased insurance premiums
- Operator’s licence at risk
- High financial penalties (inspections, repairs, recovery, delays)
Bridge strikes are not minor incidents — they're serious safety events.
8. What to Do If a Bridge Strike Happens
For
railway bridges:
- Call the Rail Authority immediately using the phone number on the bridge identification plate.
- Contact the police via 999.
- Inform your employer.
- Do NOT move the vehicle.
- Keep the public away.
For
non-rail bridges, contact the police and your employer, then follow the same safety precautions.
🚛Final Thoughts: Awareness Prevents Incidents
Bridge strikes are nearly always preventable. With correct planning, awareness of vehicle height, respect for signs, and safe driving behaviour, you significantly reduce the risk.
At Elite, we’re committed to supporting both drivers and clients with practical safety guidance throughout their careers. Staying alert and informed protects:
✔ Your safety
✔ Your licence
✔ Your employer
✔ The public
✔ The rail and road network
You can find out more information about best practice to prevent Bridge Strikes from the Government Website Here
https://www.gov.uk/government/publications/prevention-of-bridge-strikes-good-practice-guide
Stop. Check. Stay safe. Stay Elite.
