In inland waters, what color are lights on a fleet of moored barges extending into a navigable channel?

• A. White
• B. Yellow
• C. Green
• D. Red

Answer: (A)

A line of moored barges that extends into a navigable channel is treated as a fixed obstruction rather than a moving vessel. In inland navigation rules, fixed hazards are marked with white lights visible in all directions to alert approaching boats to the presence of the obstruction. Using white ensures maximum visibility and avoids implying movement or a vessel’s specific navigation status that other colors (like red or green for vessel sides, or yellow for tow-related signals) might suggest. So the lights are white to clearly mark the stationary hazard and guide other vessels safely around it.