Different precast outfits use different styles. Some are cable setups in the grooves like in the pictures. Road culverts are usually the teacups style, cables with swaged ends- dropped through a hole in the concrete, then steel "teacups" that insert over them on the inside. I've also used the circle c- hook style that are so expensive to buy, here the precast company sends those with the boxes to unload with. I think they prefer the cast in grooves- its cheaper than the imbeds, just a notch in their forms.
I have had a box have the concrete crack out where the notch was- the cable slid/popped up 3" and stopped, it just flaked off the outside surface of the box, but it wasn't fun.
Did get the big pipe down today- the bottom half was grouted in, we had to push on it with a telehandler to bust it loose. They're going to load the ride up in open top conexes, then its going to a boat to South America, to be reassembled. The ride guys said they hope to have it up and running by early June. I think customs may throw a monkey wrench in those plans- but that's not my problem.
If you look carefully in the first picture- you can see one of the two spud wrenches sticking down through the bolt holes. I had them put those in there, after the bolts were out, before we picked it. That way if the pipe is way too heavy, you can set it back down and regroup. If you just pull all the bolts out, and then try to pick it up, it can slide. You still might not be able to pick it up, just because you got it to slide, and then you're in a lot of trouble 40' off the ground, because you can't set it back down, and you can't pick it up. The spuds are tapered, so you can lift it, see if you can handle it, then fly it right off.
I try to do things like that when demoing stuff up in the air, when weights are unknown. It's really nice to have a way out if you need it.