After fighting an indecisive battle with Arminius, Germanicus ordered Caecina to take his original forces and march back to the Rhine.

[4] During the night a rumor spread that the Germans had broken into the camp, causing the troops to rush the gates in an attempt to escape.

[5] During the night Arminius counseled in favor of letting the Romans leave their camp in the morning and resume their march to the Rhine.

[6] In the morning, with Caecina having stiffened his army’s morale, the Romans managed to defeat the Germans attacking the camp and caused them to flee the battlefield.

The dendrological examinations of the logs point to the year 15 AD which matches with the construction works reported to be done by the retreating legions.

The real 'long bridges' would be probably further southwest with the region between modern Münster and Coesfeld to be most likely, as it is closer to the roads between the legion's main garrison at Xanten and its known outpost near Haltern.