What Does Bridge Plank Mean?
A bridge plank (gangplank) is used by horizontal drilling rig personnel to move from the ground to the deck of the rig or between two parts of a rig. It may be as simple as a single wooden plank, it may be two or more planks joined together to form a walkway or wooden frame with multiple planks laid down on it. It may even be as elaborate as a steel frame with a steel walking deck and handrails that's so heavy it must be moved with the rig's crane.
A bridge plank is also part of superstructure truss network in bridge building. The bridge plank is appears to corrugated steel placed between the trusses to support the bridge roadway.