Here in the Finger Lakes, we have a very diverse variety of
water types. From the shale and gravel bottoms of Keuka Lake to
the slow moving Seneca River, the way your dock interfaces the
water bottom is a critical design point that needs to be
addressed early on in the dock selection process. Because the
majority of the Finger Lakes gets locked up with powerful sheets
of ice every winter, to leave a seasonal dock in the water is as
good as leaving it out by the road for free. Kiss it goodbye.
A slow drive along the shallow northern end of Cayuga Lake will
in most years feature at least one humbled homeowner whose dock
has been dragged 300 yards into the lake by an unpredictable and
ever shifting sheet of ice.
Because of these drastic
weather changes, it is necessary to remove a seasonal dock every
year. Seasonal docks can typically be broken into 3 main
groups: leg docks, roll-in docks, and floating docks.
The first group, leg docks, feature either 2 or 4 leg posts that
support a section of dock (typically 4ft wide by 8-20ft long).
These docks have some sort of mud feet attached to the bottom of
the support pipes which increase the surface area of the support
pipes to better distribute the load and prevent the legs from
wedging down into the lake bottom. Remember, this dock has to
be removed at season's end so the more that dock settles into
the lake bottom, the harder it's going to be to remove in the
fall. Hence, the leg dock is an excellent option for gravel and
slightly silty bottoms with no more than 6-8 inches of soft
material.
Perhaps the most effortless dock to install and
remove is the roll-in dock. These docks typically feature 1 or
more set of molded plastic wheels and go in just as the name
would suggest. Pick up the end and roll it in like a
wheelbarrow. For a lightweight aluminum truss dock or a
galvanized steel dock with the decking removed, this is at best
a 1 person job and the task can be finished very quickly.
However, like the leg dock, if there is a significant layer of
soft material, the roll-in dock wheels will sink in the mud and
be a real hassle to remove in the fall. Sometimes a 4 wheel
drive truck or a winch with steel cable is the only method of
removal.
Now for the floating dock. I've personally
stuck my feet into water bottoms 2 feet off shore that could
swallow a man whole. When visiting a customer on Port Bay the
bottom was so soft and mucky that it was literally underwater
quick sand. Wheel a roll-in dock in there and it will never
come out again. Pound the posts of a leg dock down with a
sledge hammer and watch the ice manipulate your dock with ease
every winter. This is the scenario where a floating dock can
really shine! Cast aluminum augers are fastened to the bottom
of the support pipes. The pipes are locked in an upright
position and the dock is floated into place. Once in place,
release the pipes from there upright position and auger them
into the soft bottom just like a screw. You now have an easy to
install and easy to remove dock system that if built with high
quality materials and processes will last a lifetime!
Next up is the deep water scenario. Stay tuned...