Question 387Navigation General

The correct answer is B) fixed yellow lights. According to the United States Coast Guard Aids to Navigation System, bridge piers adjacent to the main channel marked with lateral system lights should be marked with fixed yellow lights. This helps clearly delineate the navigable channel and indicate the presence of the bridge structure to mariners. The other answer choices are incorrect because: A) occulting white lights are not the standard marking for bridge piers, C) fixed white lights would not provide adequate contrast against the white lateral system lights, and D) flashing yellow lights are typically used to mark isolated dangers, not bridge piers.