The Canal del Dique (English: Levee Channel) is a 118 km artificial canal connecting Cartagena Bay (at the corregimiento of Pasacaballos) to the Magdalena River in the Bolívar Department in northern Colombia. The canal is a bifurcation or artificial arm of the Magdalena River, and its eastern portion forms most of the border between the departments of Bolívar and Atlántico. The port on the Magdalena River is Calamar.