Wharves and quays (d) are constructed parallel or approximately parallel to the shore line to provide berthing or
15.
docking for seagoing vessels.
Timber (d) is more economical and easier to work. The serviceable life of timber is shorter, but its life can be
16.
extended by protecting the timber with a preservative.
To protect the pilings from direct contact with a moving ship, fender piles (a) are placed about 2 1/4 feet out from
17.
the center line of the outside row of the bearing piles.
Logger's tools are used to move and place heavy timbers. Pike poles (b) are used to hold or to steady timbers
18.
while the timbers are being placed.
Bearing piles support the wharf or pier framework and decking (a). They should be straight and measure at least 6
19.
inches across the top and 18 inches across the bottom. The length is from 60 to 80 feet.
The mooring tiles are spaced approximately 30 (d) feet apart, and placed in line with the outside row of bearing
20.
piles.
3-3
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