The projection of the Tijuana River as a ruin of the city starts detonating the type of intervention that will transform the idea of public space in the city. Tracing back to the ruins in Rome and how they speak of the ancient character of the city and the transformational capacity of such territory, a Piranesian approach to the ruin of the river unveils its spatial potential as it can accommodate thousands of square footage along its perimeter. The infrastructure of the river becomes the ruin to be restored and the space frame in which the new typological characterizations of the collective unravel to centralize the public realm of an otherwise territory of individual economies. An architectural intervention over this infrastructural centralized extension denotes infinite possibilities in regards to other infrastructural projects such as new modes of transportation, reconnecting various economic and residential sectors along its perimeter, allocation of new green areas, and re-use of the water that runs through channelized river.