What happened to all the torpedoes that missed

What about the nuclear depth charge that was accidentally dropped and never found?

They no longer make nuclear depth charges, but that one was never found.

Well, it’s not fused, so it won’t go boom, but it could still be a radiological hazard probably.

I think you misread the quote:

Emphasis added (for emphasis)

The depth charge (a Mark 90 nuclear depth bomb, using a 10-kiloton Mark 7 warhead) had everything except its nuclear package (“pit” or “core”) so a radiologic risk is the main thing that cannot happen. (At least, if we assume the May 1981 revelations as reported in the New York Times are accurate.)

Ohh, OK, so the only thing to worry about is the fuse, basically, which is the part that does go boom. :smack:

And one submarine, USS Barb (SS 220):