. . . and lowered into the cavity which would be its home for the next forty-one years. Waiting to be attached are the six 14-inch steam risers that would be attached to the nozzles circling the vessel's top. They took the water/steam combination up to the steam drum placed on a shelf overlooking the cavity. Visible around the entry slot are the steel bars that would reinforce the concrete soon to be poured around and above the cavity to the level at left. In all, the reactor vessel would be buried in concrete three stories high.