Question This road sign means: Answers Divided highway begins. A steep grade is ahead. The overpass ahead has a low clearance. Two lanes of traffic moving in opposite directions are about to merge. Explanation This sign warns that the overpass ahead has a low clearance. Do not proceed if your vehicle is taller than the height indicated (in this case, 13 feet, 6 inches). Take a FREE Practice Test Now This questions appears in the following tests: Iowa Practice Test Ohio Practice Test Hawaii Practice Test Kentucky Practice Test Missouri Practice Test New Hampshire Practice Test Indiana Practice Test Maine Practice Test Michigan Practice Test Minnesota Practice Test New Jersey Practice Test Oregon Practice Test New Mexico Practice Test