Popped a Bead-Is my tyre dead?

too hard to say without looking, chances are it will be fine.

The tyre structure should be OK if the sidewalls and beads appear undamaged. Clean up the tyre, have a look for obvious cuts or gouges. If you find none. Stick it back on and pump it up.

Tyre will prob be ok. Need to pop it off the rim and clean all the mud out before reseating it.

Leroy

WheelTravel,
As mentioned by Truckster hard to say unless you see it. Unfortunately I pop my tyres off regularly on my Rangie, I did today whilst playing in Harvey. Mine do so because I run low pressures, I try not to run pressures below 25 psi but this will depend on your own vehicle and the type of driving you do. For me 25 is a compromise. It's VERY important that the tyre house remove the tyre completely to clean the rim properly, wire brush the rim till it's clean and don't let them use soap when they put the tyre back on. I usually find my tyres go down about three days after a trip when the mud dries out, then it's usually the tyre that's in the sun that goes down first. Make sure you get the stick on weights if you can, the clip on weights tend to drag the dirt into the tyre rim.
As usual my opinions & experiences.