Incremental launch

In current applications, the method is highly mechanised and uses pre-stressed concrete.

The second incrementally launched concrete bridge was over the Inn River, Kufstein in Austria, completed in 1965.

The structural engineers for both bridges were Professor Dr Fritz Leonhardt and his partner, Willi Baur.

[citation needed] The first section of the launch, the launching nose, is not made of concrete, but is a stiffened steel plate girder and is around 60% of the length of a bridge span, and reduces the cantilever moment.

[3] The sections of bridge deck slide over sliding bearings, which are concrete blocks covered with stainless steel and reinforced elastomeric pads.