Question

BOTH INTERNATIONAL & INLAND At night, which light(s) is/are required to be shown by a dredge to indicate the side on which another vessel may pass due to an obstruction that exists?

Answer 1

At night, a dredge must display two red lights vertically on the side with an obstruction, and two green lights vertically on the side where passage is clear, along with a central white light to indicate its presence.

Step-by-step explanation:

The navigation lights and signals required for a dredge to indicate an obstruction. According to maritime navigation rules, at night, a dredge or any other vessel that may have an obstruction on one side that prevents other vessels from passing must display certain lights.

If the obstruction is on the dredge's starboard side, it must show two red lights in a vertical line to indicate that another vessel should not pass on that side. Conversely, if the passage is clear on the starboard side, the dredge should display two green lights vertically.

Additionally, the dredge should show a white light at or near the center of the vessel to indicate its overall presence. These lights help other vessels identify safe passage routes when approaching a dredge working in dark and potentially congested waters.