The linkspan is mounted
to a frame suspended on piles. A hydraulic system raises and lowers the linkspan
to accommodate variations in the tide and the vessel’s threshold. The
height of the linkspan automatically responds to the vessel’s movement.
Safeguards are incorporated in the design of the linkspan to protect the unit
and its users in the event of a loss of hydraulic pressure.
Considerable damage to the linkspan in case of a collision can be prevented by the incorporation of an overrun structure at the point of the bridge’s attachment to the quay, whereby the linkspan subsequently merely needs to be restored to its original location – provided that rubber fenders have been attached to the front of the pontoon or ramp. However a floating fender positioned in front of the linkspan offers the best protection to your investment.