GiraffeG4 Systems also collects that data but via sensor instead of crowdsourcing.

The company offers its Sentinel product, a low-clearance collision avoidance system that leverages a sensor to help large trucks and RVs steer clear of low bridges.

It provides warnings to drivers via mobile app in which the driver inputs the height of the vehicle and trailer ahead of embarking on a trip. The app interacts with the GPS system the driver is using to pre-measure heights based on the GPS’s information…

E-SMART is another system designed for fleets with large trucks that takes things a step beyond in-cab alerts and actually slows a truck. Fleets that have integrated E-SMART have experienced a complete elimination of low-clearance bridge hits, according to its users.