hub plank
hub plank · hub planks
A horizontal plank attached along the truss of a highway bridge, at the height of a…A horizontal plank attached along the truss of a highway bridge, at the height of a wagon wheel hub, to prevent the wheels from hitting the truss.
Meaning
1 senses(historical)A horizontal plank attached along the truss of a highway bridge, at the height of a wagon wheel hub, to prevent the wheels from hitting the truss.