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Height limitCanada

An introduction to the traffic rules and road signs of Canada. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
Canada

29. Height limit

A height limit prohibits vehicles whose total height exceeds the value shown from entering or passing a road section, bridge, tunnel, gateway or other structure. The vehicle’s height includes its load and any equipment attached above it.

Drivers of high vehicles must know their exact height, observe advance warnings and use an alternative route when necessary. They should never rely only on visual judgement or attempt to pass beneath a structure when safe clearance is uncertain.

Height limit of 4.00 metres at a covered bridge. (Quebec, Canada)
Wikimedia.org • Lesmatt • CC BY-SA
How should you read a low-bridge height restriction in Canada?

Look for the locally prescribed height restriction or clearance warning near older bridges, tunnels and remote routes. The displayed clearance is normally in metres. A warning may describe a hazard ahead; a prohibitory sign indicates a route you cannot enter if your vehicle exceeds the limit.

🔗 icbc.com • ICBC — Learn to Drive Smart, March2026; signs, road rules, observation and hazard precautions; provincial example

Does a roof load count when checking vehicle height in Canada?

Yes for practical clearance: measure the vehicle at its highest point with its load and fitted accessories, such as a roof box, bicycle or roof rack. Check the local legal measurement rules as well; an empty vehicle’s registered height is not enough when equipment has been added.

🔗 icbc.com • ICBC — Learn to Drive Smart, March2026; signs, road rules, observation and hazard precautions; provincial example

What should you do if your vehicle is too high for a bridge or tunnel in Canada?

Do not try to squeeze under the structure. Use the signed alternative route and, if you are already close to the obstruction, stop where safe and seek traffic-control assistance rather than reversing unpredictably into moving traffic.

🔗 icbc.com • ICBC — Learn to Drive Smart, March2026; signs, road rules, observation and hazard precautions; provincial example

1 Canada 2 Freeway 3 Speed limit 4 Advisory speed 5 Bike path 6 Pedestrian warning 7 Bridge 8 Speed bump 9 Toll road 10 One-way traffic 11 Bus lane 12 Bus stop 13 Dead end 14 Stop sign 15 Yield 16 Roundabout 17 Road narrowing 18 Crosswalk 19 Railway crossing 20 Mandatory direction 21 Turn prohibition 22 School area 23 Crossing animals 24 Slippery road 25 Rockfall 26 Curve 27 Wrong-way driving 28 Road work 29 Height limit 30 Weight limit 31 Radar speed sign 32 Selective barriers 33 Priority at the next intersection 34 Traffic signals 35 Traffic signals ahead 36 Pedestrian lights 37 All-way stop 38 Emergency telephone 39 No parking 40 No stopping 41 Parallel parking 42 Disabled parking 43 Traffic management 44 Backing up 45 U-turn 46 Detour 47 Uncontrolled intersection 48 Road surface 49 Emergency lane 50 Provisional licence 51 City limit 52 Road closed 53 Licence plate 54 Charging station 55 Pedestrian 56 Bus 57 Police 58 Ambulance 59 Taxi 60 Tailgating 61 Pothole 62 Path 63 Particulates 64 Air pollution 65 Rush hour 66 Road code 67 Reversible lane 68 Street gutter 69 Cargo bike 70 Forestry vehicle 71 Construction vehicle 72 Semi-trailer truck 73 Trolleybus 74 Speed pedelec 75 Delivery vehicle 76 Idling 77 Tow truck 78 Four-wheel drive 79 Bicycle 80 Motorcycle equipment 81 Rail track 82 Travel trailer 83 Trailer 84 Tow hitch 85 Fire truck 86 Siren 87 Convoy 88 Emergency vehicle lighting 89 Agricultural machinery 90 Electric bicycle 91 Electric vehicle 92 Pedelec 93 Quadricycle 94 Microcar 95 All-terrain vehicle 96 Van 97 Recreational vehicle 98 Scooter 99 Trikke 100 Personal mobility device ...