Mariners are warned that numerous uncharted piles, snags, pumps, pipes, and wrecks, 
some submerged, may exist along the edges of the waterway.
The depths shown in backwaters, sloughs and cuts are from surveys of 1934.  Channels 
are not maintained by the Corps of Engineers and numerous uncharted shoals and 
obstructions have been reported.  Use chart 18661.