A power line damaged during the storm triggered a full closure of the important Autobahn 5 from Heidelberg to Darmstadt on Thursday morning.
A tree tipped over onto a power pole, and the head of the pole buckled.
As a result, two power lines hung lower than usual. This hit a truck, but the driver was not injured in the accident.
Darmstadt - The amount of damage was initially not known.
At around 10 a.m., the blockage between Hemsbach in Baden-Württemberg and Heppenheim (Bergstrasse district) was lifted in both directions, as a police spokeswoman said.
dpa