Yes, that is a cement boat ramp that I found when I went down a dirt road to the right of the circle roundabout. It lead to a long cement boat ramp with a curb on both sides. The ramp ended and those excavators were down there clearing debris or something. At first I thought they might be adding cement to the bottom of the ramp to make it longer, but after getting closer, I'm not sure what they are doing. There was indeed a sketchy looking road to the left that looked like it led down to the beach area well below the ramp, but I didn't take that road.
Also, the name of the store in Globe with minnows is "Good2Go" across from the Best Western.