All indications point to it being one of the oldest bridges in Betanzos, as it is mentioned in documents from 1142 that refer to a bridge that connects the town of Untia with the Donas Monastery located on the banks of the Mendo River. The remains of this (female) monastery can be seen right in front of the bridge. It has only one arch, as the river's flow does not require more.
Did you know that on the 11th of January 1809 the British army under the command of General Sir John Moore, in their retreat to A Coruña fleeing from the French army of Marshal Soult, blew up the bridge in order to delay the French? Sir John Moore was wounded in the Battle of Elviña (A Coruña) on the 16th January 1809, dying and his tomb is in the Jardín de San Carlos in A Coruña.
The bridge was rebuilt in 1846 by the city council and the city's coat of arms was placed on one of the sidings. It should be pointed out that this bridge is very busy as it is the exit from Betanzos after the Rúa do Rollo for the pilgrims of the English Way.