USCG Exam PracticeAnchoring — types, scope, holding ground
A moored barge reduces the available navigable width of a channel to 75 meters. Under the Inland Navigation Rules, what lighting is required at night?
- A. No special lighting is required because the barge is moored parallel to the bank
- ✓ Two all-round white lights visible for at least 1 nautical mileCorrect
- C. One all-round white light visible for at least 2 nautical miles
- D. Two all-round red lights in a vertical line
Why B is correct
Under 33 CFR §83.30(h)(ii), a barge that reduces the available navigable width of any channel to less than 80 meters must display the lights described in §83.30(i) — two unobstructed all-round white lights visible for at least 1 nautical mile. A 75-meter remaining width falls below the 80-meter threshold, triggering this requirement regardless of whether the barge is parallel to the bank.