The submerged tank Linkspan was invented in 1968 and, since then, over 50 have been installed. The submerged tank itself acts as a counterweight to support the weight of the outer end of the bridge that spans from vehicle ferry to quay. But unlike a conventional counterweight system it requires no supporting civil works and has no wires or mechanism to maintain.
For further information download our brochure;
Submerged Tank Linkspan.pdf