Pouring a footing piling. The drilling rig on the left is a Delmag RH28. It drilled the holes for the footings. The drilling augur for the holes is sitting in front of the drilling rig; it is over 7 feet in diameter. You can see several rebar cages near the center of the picture. One of these is lowered into a hole before the concrete is pumped in.
From Bridge Construction