Just south of new Gretna? First exit northbound once you pass over the Mullica?
The dock was there before the bridge.I think you are right. Didn't they dig a huge hole to get fill for the bridge work or something, then provided a fishing dock for the public?
We launched our boat at the end of the road at the ramp near the house all my childhood. That metal pier has been there forever. That was the first time I actually have ever been on it a few weeks ago.
I will take a guess that you are along the Chamberlain.