Home / Manitoba / Questions / Road Signs Road Signs Report Yellow diamond reading 'BRIDGE ICES BEFORE ROAD': A Winter closure B Bridge surfaces freeze sooner than road C Summer only D No warning Show Answer & Explanation Correct Answer: B. Bridge surfaces freeze sooner than road First frost / black-ice danger on bridges. Previous Next More Road Signs Questions White diamond on blue background: Yellow diamond with ATV: Yellow diamond with horse+buggy: Orange sign 'BRIDGE OUT': Blue sign with water icon, 'FLOOD': Often Missed All Manitoba Questions Smart Practice Mock Exam Road Signs Guide