How Many Nuclear Warheads Does A Columbia-Class Submarine Carry, And How Does It Stay Hidden? A single Columbia-class submarine carries 16 Trident II D5 ballistic missiles, each able to deliver multiple independently targeted nuclear warheads — enough concentrated firepower in one hull to hold an entire nation at risk — and the whole point of the boat is that no adversary will ever find it. The Columbia is not interesting because it is the large…