Corpach Locks and Basin, Flight of locks at Caledonian Canal, Scotland.
The Corpach Locks and Basin features a sea lock, basin, and two locks constructed with masonry chambers at the western end of the canal.
The construction of these locks, completed in 1822, represented a major engineering achievement as part of the Caledonian Canal development under Thomas Telford's design.
The locks system earned scheduled monument status in 1992, recognizing its contribution to Scotland's industrial inland water transportation heritage.
The monument extends 440 meters in length and 80 meters in width, connecting Loch Linnhe to the River Ness through varying water levels.
A lighthouse stands at the locks site, while the original sea lock maintains its initial design despite modifications over two centuries.
Location: Highland
Location: Kilmallie
Part of: Caledonian Canal
GPS coordinates: 56.84210,-5.12098
Latest update: March 4, 2025 02:29
Navigation locks are engineering structures that enable ships to pass through significant elevation changes between seas, lakes, and rivers. From the Panama Canal, where vessels rise 86 feet (26 meters) to cross the Isthmus, to the Three Gorges Dam in China, featuring five-stage locks managing a 371-foot (113-meter) height difference on the Yangtze River, these technical facilities have transformed global trade routes. The Soo Locks in the United States connect the Great Lakes, while the Kiel Canal in Germany links the North Sea to the Baltic Sea. Some structures, such as the Itaipu Dam between Brazil and Paraguay, combine navigation and hydroelectric power generation with a capacity of 14,000 megawatts. Others stand out with their innovative technical solutions: the boat lift in Peterborough, Canada, has used a hydraulic system since 1904, while the Falkirk Wheel in Scotland employs a rotating mechanism to lift 24 meters (79 feet). These facilities play a crucial role in international commerce and economic growth of the regions they serve.
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