In addition to the unditching beam, torpedos, spuds or wooden blocks could be mounted on the tracks to provide extra grip, but they often had the barbed wire hooked in. In Cambrai they had 'fascines', which where large bundles of branches that were rolled up and that lays on top of the roof. They rolled this out over the mud so that the tanks could drive over. Many systems, but they were not good enough to be a success here in Flanders.
These fascines where installed with a 3 point chain and could not move because of the 2 fascine hooks. They had to remove one pin behind the cabine and the fascine rolled over into the trench. This fascine has a weight of 1000kg.