Here is the link to the dock and other waterfront regulations:
http://www.des.state.nh.us/factsheet...ands/wb-12.htm
I find it to be very informative and helpful for my clients when questions arise.
Here are a few others that are helpful:
New Hampshire Watersheds: http://nhwatersheds.unh.edu/quality.html
UNH Center for Fresh Water Biology: http://cfb.unh.edu/
New Hampshire Shoreland Protection Act: http://www.des.state.nh.us/cspa/cspa_rulelaws.htm
New Hampshire Official List of Public Waters: http://www.des.state.nh.us/asp/cspa/official.asp
NH Restrict Bodies of water (Partial List): http://www.state.nh.us/safety/ss/bodies.html
New Hampshire Fish and Game: http://www.wildlife.state.nh.us/Fishing/fishing.htm