Re: Marine Piles : How can I test the remaining strength of wooden marine navigation piles? .I suggest you contact Brian R.A. Wood at Metacoustics Pty. Ltd. P.O. Box 6042, 17 Chicago Ave., Blacktown, New South Wales, 2148 Australia. Phone: 02 9831 7353. www.Metacoustics.com.au. Email: AETeam@Metacoustics.com.au He has a long technical background in acoustic emission methods which may have applicability here.