Rock Study at the Concrete Bridge

Last fall, the powers that be at Duke Forest (presumably the Forestry department at Duke) re-positioned the rocks on the downstream side of the concrete bridge as shown in the first image. While New Hope Creek is usually gentle, I couldn’t imagine the piles holding up long during the heavy flow periods. The images below show the same view over the winter.
December:

January:

February:

Though the piles are lost, it’s interesting that the few big rocks held their approximate locations.
Here is a current image. It looks like a new arrangement is being tried.
