Schleuse Carrapatelo

Schleuse Carrapatelo is a lock on the Douro River in Portugal designed to raise and lower vessels between different water levels. The structure features a large chamber that accommodates commercial shipping traffic and connects different sections of the river.

The lock was built between 1965 and 1972 as part of efforts to improve river navigation for trade. Its completion represented a major infrastructure investment in making the Douro more accessible to commercial vessels.

The lock opened the Douro Valley to deeper river navigation, connecting coastal trade with inland wine-producing regions. This transformed how goods and people moved through one of Portugal's most important agricultural areas.

The lock can be viewed from public viewpoints where visitors can watch ships pass through the chamber. Daytime visits are best for observing the operation and seeing vessels in motion through the system.

The lock is among Europe's tallest of its kind, allowing inland vessels to overcome a height difference of around 35 meters (115 feet). Few other locks on the continent manage such significant vertical changes.