Sinking some piers into a lake?

[Kendall69]

What some people do is drive in a high capacity, galvanized anchoring and piering system. It's sorta like a huge sand auger. It's drilled in with a skid steer attachment and you go from there.

They also use them for soil stabilization, land slides utility poles, foundations etc.

You might go with the floating option and use these to hold the dock in place. Blocks of styrofoam 24"x48"x98" go for around $200.00 ea.

Step by step here:
Floating Dock. How to build. Step 1.

Here's some other links
STYROFOAM Brand Insulation - Dock Construction

Floating Docks, Floating Boat Lifts

Pier Tech Systems

 

[tommu56]

they do make floating dock strainers for fire dept's take a look at that it will float about 1 ft below surface to keep alge and scum out of strainer



http://www.ettfire.com/images/float_dock_strainer.jpg

or a dry hydrant system it has a fixed strainer in water source

The Dry Hydrant Concept

The only thing on this link is they use 90 deg fittings its better to use just 2 45 deg fittings it helps friction loss a 6" system can flow about 1500 gpm with out much problem.

this link is betterRed Head Brass - Dry Hydrant Systems
tommu56