Bike Touring Highlight
100 tons of steel and 1.6 million euros were needed to this 95 meters
to build long fish ladder in Bergedorf 2013. With this ski lift the fish, which have found their way to the Serrahn to the castle pond and further to the spawning grounds.
Since 1208, the Bille is dammed at the Serrahnwehr and has since since at this point for fish upstream impassable. In the 1.10 meter deep tubs, which in the end protrude only 20 centimeters out of the water, roach, brown trout or eels can overcome the height difference of a good 1.70 meters between the harbor basin (Serrahn) and the castle pond. For this, every three meters of barrages with a stone chute are built into the fish ladder as soil.
Such systems are usually constructed of concrete. Bergedorf decided to use the unusual construction made of Corten steel.
The slowly rusting steel in the water should lend the staircase the grace of a historic industrial building, which blends optically well into the port of Bergedorf with the historic corn mill.
February 19, 2019
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