#3, Hawthorne Bridge, focus on the circle between the east-bound ramp and the west-bound ramp

The CAT dumps dirt from its bucket into the second truck bed of a dual-dump-truck rig. I don't know the official name of the rig. Do you? By the time a few days had passed, the earth-movers had the ground sloped smoothly from the circle down towards SE MLK, the street you see with the crosswalk. The circle reminds me of a tilted bowl, low rim down by MLK. And on the left of this photo you can see the east-bound exit ramp of the Hawthorne Bridge.