purple_stars wrote:
a fifteen foot tall statue of elvis, especially if it had his guitar
sticking out on both sides.

on a serious note, i thought that most moorings were poured concrete,
poured right on the spot using whatever kind of form you can
make/find. concrete cures just fine under water once it's been
poured, and i'm sure concrete is easier to deal than a fifteen foot
tall statue of elvis.

Courtney Thomas wrote:
I want to install a fixed mooring this summer and see that for
example mushroom anchors are expensive.

The environment is... Atlantic salt water, in a fairly well protected
cove, with 6' tides, in about 10-15' of water, virtually no traffic
and a spit serving as immediate breakwater.

Alternative suggestions to a mushroom would be appreciated.

Courtney

Depending on the aggregate in the mix, concrete is just about the worst
substance you can use. A stone aggregate will barely hold a 35-footer unless
the weight is dug in about 12 feet down in heavy mud. How are you going to
do this? I saw a newly-laid slab of concrete "hopped across" the bay by a
Nicholoson 32 in a force 6 some years ago. If you use iron or steel
aggregate, then you increase the weight per unit volume slightly, but it's
still too light for storm conditions.

Train wheels are far-and-away the best moorings, next to a couple of large
(and expensive) mushrooms with 30 metres of 1" link chain between 'em.