Devil valley bridge
the devil valley bridge transfers the A4 between Hermsdorf (distance 2km) and Jena (15km) over the devil valley. The bridge is a reinforced concrete elbow bridge with 138 m span with an overall length of 270 M.
the original devil valley bridge, between 1936 and 1938 of the architect Paul Bonatz (*6. December 1877; †20. December 1956) delighted, was at that time one of the largest elbow bridges of Europe and was considered as engineering master achievement.
60 years later (1996 to 1998) a second bridge (south side) became parallel to it in the course of the 6-streifigen of development of the motorway A 4established. This happened in nearly the same building method as in the thirties, with a wooden falsework. When it turned out that the old devil valley bridge was no longer reorganizationable, it became, although under monument protection standing, 1999 torn off and until 2002 by a second bridge (north side)replaced.
- Bogenspannweite: 138 m
- height over low: 53 m
- overall length: 270.2 m