The Alcantarilla del Camino de Frechilla is a hydraulic work of the Campos Branch of the Canal de Castilla located in the municipality of Paredes de Nava (Palencia), at kilometer 109.500. It is part of the set of infrastructures designed to make the canal route compatible with the network of traditional roads, guaranteeing the continuity of communications without altering the hydraulic functioning of the great enlightened work.
Its primary function is to allow the Frechilla Road to pass under the canal, effectively resolving the crossing between the two routes. It is a discreet structure, integrated into the landscape, whose importance lies precisely in its functional role within the system: ensuring passage and protecting the canal’s stability from potential impacts from the road. Although modest in size, this culvert is a key element in the territorial organization of the Castile Canal, where each component responds to a specific need. The structure retains all of its original hydraulic engineering, which reinforces its heritage value and justifies its comprehensive protection.
For visitors, the Alcantarilla del Camino de Frechilla offers the opportunity to discover one of the less visible but most essential elements of the Canal de Castilla. Integrated into the open landscape of Tierra de Campos, it invites one to understand how 18th-century engineering adapted the canal to the terrain, resolving with simplicity and efficiency the coexistence of water, roads, and rural life.
