The most beautiful of the Bad Vilbel bridges was built around 1980 as a pedestrian and cycle path bridge to the Old Mill. The wooden construction with trusses for statics offers a box seat in the middle with a view of the Nidda. When the Old Mill was converted into a cultural center in 1991, the covered mill bridge was built. At that time, the entire structure was delivered by low-loader and assembled on two concrete supports. The bridge is 39.46 meters long and 4.06 meters wide, measured from the overhanging roof.
The covered wooden bridge was decorated with flower boxes until it was noticed that mold damage had occurred in the beams due to pouring. In 1966, a bridge was also built between the spa park at the castle and Gronauer Weg near the mill, which was later demolished. The mill bridge creates a connection to two historical buildings: the castle and the mill. The origin of the moated castle was a Frankish royal court around 830. The Old Mill was also built around 830 to 850.