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USCG Exam Practice · Rule 15 — Crossing Situation

On the Western Rivers, Vessel A is crossing the river. Vessel B is ascending the river. Both are power-driven. Which vessel must keep out of the way under Inland Rule 15?

  1. AVessel B, because ascending vessels are give-way to crossing vessels
  2. BVessel A, because a vessel crossing a river keeps out of the way of a vessel ascending or descending the river✓ correct
  3. CVessel A, because it has Vessel B on its starboard side
  4. DVessel B, because descending vessels have right-of-way but ascending vessels do not

Why B is correct

33 CFR §83.15(b) states that on the Great Lakes, Western Rivers, or waters specified by the Secretary, a power-driven vessel crossing a river shall keep out of the way of a power-driven vessel ascending or descending the river. This overrides the standard starboard-side rule of §83.15(a).

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On the Western Rivers, Vessel A is crossing the river. Vessel B is… — USCG Exam Practice · CaptainsGround