Birsig

The Birsig () is a rather small river in eastern France and northern Switzerland. Its source is in the village Biederthal, in the French Haut-Rhin department, near the Swiss border. The Birsig is about long, and its watershed area is about . It flows variably through Swiss and French territory and through the Birsig Valley. Afterwards it passes the city of Basel, where it enters the Rhine (left bank).

Key facts

River.name: Birsig
River.image: BirsigBasel.jpg
River.image_caption: Beginning of the Birsig's overbuilding near the Basel zoo
River.pushpin_map: Switzerland
River.mouth_location: Rhine
River.subdivision_type1: Countries

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Wikidata facts

Image: BirsigBasel.jpg
Length: 21

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watershed area: 82
Commons category: Birsig

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The river Birsig originally flowed openly through Basel, but the river was long ago channelled and its banks built up to prevent water damage to the houses. The river flowed directly along the houses in the lower part of the city, where many bridges were built over. It took the fecal waste from the houses and was therefore called "the city's big cloaca", which favoured the outbreak of cholera and typhus.