Refers to a slope or bank, often in a geographical context.
El abarranque a lo largo del río se ha erosionado debido a las fuertes lluvias.
The embankment along the river has eroded due to the heavy rains.
El abarranque del río se ha erosionado debido a las fuertes lluvias del invierno.
The embankment of the river has eroded due to the heavy winter rains.