[1][2] According to the historical writings of Al-Idrisi, a first bridge over the Tensift River was built by the Almoravid emir Ali Ibn Yusuf (ruled 1106–1143) with the help of architects from al-Andalus.
The bridge was strategically important as it allowed the river to be crossed during its yearly floods.
[3][4] Around 1170 CE, the Almohad ruler Abu Ya'qub Yusuf ordered the reconstruction of the bridge at a less vulnerable point 400 meters downstream.
The bridge is built on pillars that have a stepped and pointed profile upstream and a simply blunt profile downstream, allowing the structure to withstand the force of the waters over centuries.
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