Autobahnbrücke Siebenlehn, Girder bridge in Nossen, Germany
The Autobahnbrücke Siebenlehn is a girder-type structure spanning the Freiberger Mulde valley with a reach of about 413 meters. The framework reaches a height of about 70 meters and carries eight lanes of traffic across the A4 motorway.
Construction began in September 1935 and was completed by November 1936, using red Meissen granite as structural elements. It was built as part of the motorway expansion connecting Dresden to Chemnitz.
The bridge represents a notable engineering achievement of the 20th century, displaying red Meissen granite pillars that cross the valley. Visitors can observe the craftsmanship of regional materials in its support structures.
The bridge is directly accessible from the A4 motorway and offers views of the valley below. It is best seen from nearby rest areas along the route.
At the end of World War II, the bridge was nearly destroyed by planned demolition, but a local innkeeper prevented the detonation. This act saved the structure from being lost.
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