Birth of the Canal

In this corner of Palencia, the source of the Canal de Castilla marks the beginning of one of the most ambitious hydraulic engineering projects of Enlightenment-era Spain. Conceived in the 18th century to improve the transport of goods, this site brings together several elements that explain how the canal’s initial construction was organized and how it was integrated into the landscape. The tranquil surroundings, shaped by the flow of the Pisuerga River, are now complemented by the presence of the railway, a reminder of the coexistence of historical and modern infrastructure. Three channels branch off from the river dam, the one on the left—as the water flows—giving rise to the Northern Branch, the precise point where this network converges.

The bridge over the railway line is one of the most prominent features. Constructed of ashlar masonry and featuring a segmental arch spanning 12.30 meters, it supports the double track of the Alar del Rey-Santander railway. Its carefully cut stone facade showcases the construction skill of the period, and its excellent state of preservation allows one to appreciate the solidity of the original structure. Located just one meter from the bridge over the road from Alar to Mave, both served as essential crossings for spanning the canal’s starting point without interrupting land communication. The comprehensive protection of this bridge underscores its heritage value and the need to maintain respectful interventions, such as the proposal to create a parapet using traditional materials.

Around it are distributed other complementary elements that complete the overall interpretation. The bridge over the road allowed local traffic without interfering with the new artificial channel, integrating it into the pre-existing road network. The railway bridge, parallel to the road bridge, demonstrates the historical overlapping of infrastructure and the adaptation of the territory to new mobility needs. The commemorative monument recalls the importance of the Canal de Castilla as an economic engine and a symbol of progress. The ordalivo (a type of waterwheel) and the additional bridge complete the ensemble as auxiliary structures linked to the operation of and access to the canal, reinforcing its unified character.

Today, the Canal’s source offers visitors a space to understand the technical feat of this great hydraulic engineering project and to enjoy a serene landscape, marked by water, stone, and industrial history. A stroll through this area reveals how each element interacts with its surroundings and how, together, they offer a cultural experience that connects past and present.