To be exact, the Hunley docked on Inlet Creek, that would be to the west of the bridge which obviously was not there at the time. Also on Sullivan's (the island to the west) at Breech Inlet was Battery Marshall(Click the link geek, it's interesting). You can see some of the footings for the gun emplacements even today, I know of a house that is built on one of the semicircle gun mounts.