Here is a link to many of the artificial reefs off the coast of Texas.
http://www.tpwd.state.tx.us/fish/reef/2003 reef.pdf
It includes what is sunk and the depth.
TwoBit
http://www.tpwd.state.tx.us/fish/reef/2003 reef.pdf
It includes what is sunk and the depth.
TwoBit