König-Ludwig-Brücke
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On 20 April 2012 the bridge was awarded as a 'Historical landmark of civil engineering in Germany'. The building was constructed by the Royal Bavarian State Railroad in the mid-19th century. After a number of modifications and changes of use, the bridge is currently blocked because it can not be assumed a safe stability.
The 1852 inaugurated bridge over the Iller is a unique monument of the early railway age. It is one of the oldest surviving wooden railway bridges worldwide. The five-meter-high wooden support latticework was constructed after the so-called 'Howschen System'. It rests on two 25-meter-high stone pillars. The inside width reaches the three bridge sections on the Iller amount (from west to east) about 35 m, 52 m and 26 m.
The bridge was also one of the first buildings in Germany, which supporting elements was not empirical but calculated on the basis of theoretical considerations. The bridge obtained almost in its original state and thus marked the transition from the empirical to the theoretical foundation construction. Without exaggeration, it is regarded as an internationally unique monument of civil engineering.
source: Historische Wahrzeichen der Ingenieurbaukunst