Question This sign indicates: Answers The distance from road surface to a bridge or overpass. The maximum legal height of a vehicle allowed in this state. The maximum width of a vehicle allowed on the highway. Explanation This is a low clearance warning sign. It indicates the distance from the road surface to the bottom of a bridge or overpass (in this case, 12 feet, 6 inches). Take a FREE Practice Test Now This questions appears in the following tests: Kansas Practice Test Illinois Practice Test Tennessee Practice Test Virginia Practice Test