Here is a link to a list of structure/cover links
but HSB don't need any as they are open water fish.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000154#000003 I just copied it and here it is.
general stct. info methods:
Below is a link to the new Habitat Manual from the Southern Division of The American Fisheries Society. It is a great resource for info on and building of cover/stct. I think you will enjoy this and get some ideas including drawings/pics.
http://www.sdafs.org/reservoir/manuals/habitat/Main.htm Also there is a new Aquatic Vegetation Manual linked below
http://www.sdafs.org/reservoir/manuals/aqveg/veghome.htm If you have water depth fluctuations or will fish in fall through spring (as well as summer) then some deep cover is good. I like cover that goes from the bottom at 15ft all the way to or near the surface in a few locations.
Artificial man-made structure.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000161;p=1 http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000196;p=1#000000 http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000173;p=1#000000 Pallets as stct.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000132 Xmas trees as stct.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000083;p=1 Gravel for BG spawning
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000124 Rip-rap as stct.
http://www.pondboss.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000134 Rock for LMB spawning.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000120;p=1 Tires as stct.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000138 Sand for spawning.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=4;t=000115 General stct./cover ideas
http://www.pondboss.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000016 Oak trees.
http://www.pondboss.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000008 Pond pics. stct.
http://photobucket.com/albums/b165/ahvatsa/ thermocline and islands.
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=20;t=001578#000005 There are hundreds of threads here on stct. and cover. The above are a few good ones many of which have links to additional material and even better pics. Get the PB mag. and the PB book on pond mgt. and ask all the questions you like and we will help you through this. Ponds are great fun.