Lakewood Lake Mystery

[lastdaysoffla]

So, I have a bit of a mystery. I live in the Lakewood area. I enjoy having the large lake in the neighborhood. It's called New Rose Creek on the map. So the mystery is: at the bank of the lake near Cruisers Grill there are a bunch of large concrete blocks. Some on the bank or embedded in tree roots, so they must have been there quite a while. You also find brick fragments in tree roots and tree trunks grown around them. You also find a dam like structure there regulating the outflow of the lake. On the creek bed there are large fragments of concrete .

It is all very interesting and unlike anything else I've seen in Jacksonville neighborhoods. Does anybody know what used to be there on the bank? Maybe some sort of dock? I'm really puzzled. There is a possibility the location was once a dump site but it doesn't feel that way.

Thanks