On Sat, 03 Jun 2006 16:31:46 GMT, Courtney Thomas
wrote:

My understanding is that concrete loses a lot of it's 'weight' in water,
whereas steel/iron do not and given the recent hurricane rash I'd prefer
all I can reasonably get. Plus I'm not in an area catering to such
services as installing moorings, for example.

Steel has a higher density than concrete so it takes more concrete to
make a proper mooring. That said, concrete mooring blocks are quite
common and relatively cheap. You only need about 6 cubic feet to make
a 2,000 lb block which is plenty of weight even allowing for the lower
density. Any concrete plant or competent "do it yourselfer" could
make one for you at low cost. Some concrete plants make them up out
of their excess production and may have a few laying around. Typically
a loop of 3/4 inch chain or wire rope is cast into the block as an
anchor point.

Unless you own a floating work barge with hoist, you will need
professional assistance to transport the block and plant it.