I am seeking information in the field of dredging by agtition of the solids whereby the same can be transported hydraulically in suspension through natural methods, ie tidal actions.
Only very recently I became a participant in this Forum.
Your query dates back to July 21, 1999
I hope that you found some information about your subject (Agitation Dredging)
If not adequate, please try as follows:
Then click on 'equipment' and the smaller icon for waterjet
They ("HAM" - Holland) seem to be the originators of this method.
Furthermore, their web-page is quite informative (so far as they like to go!)