Rila Water Pipeline

The Rila Water Pipeline is a water transport system that runs from a mountain reservoir down to Sofia, delivering drinking water to the city. The infrastructure travels through rugged terrain and crosses multiple rivers along its route.

The pipeline was constructed in the early 1900s to meet Sofia's growing water needs as the city expanded rapidly. It marked an important step forward in modern water supply for Bulgaria.

The pipeline represents a significant engineering achievement in Bulgarian infrastructure, marking the transition toward modern water distribution systems.

The pipeline can be viewed from several points along its mountain route, especially where it crosses rivers. Early morning visits offer better light and fewer crowds for observation and photography.

The system uses siphon crossings to pass beneath rivers without interrupting water flow. This engineering solution allows water to travel downward under the river and rise up on the opposite bank.