Linked from

The 30 pages that link to Canal lock, each with the reason it gives.

• Erie CanalRelated: Locks let canal boats cross the elevation changes between the Hudson River and Lake Erie.

• Inland waterway transportRelated: Locks let vessels cross elevation changes along rivers and canals.

• Yangtze River shippingRelated: Locks at the Three Gorges Dam allow ships to bypass its height difference.

• Rhine–Main–Danube CanalRelated: Locks lift and lower vessels along the canal’s changing elevation.

• Canal transportRelated: Locks let boats overcome changes in elevation along a canal.

• Nicaragua CanalRelated: Locks would be needed to move ships between the lake and lower coastal approaches.

• Bridgewater CanalRelated: Locks manage changes in water level along the canal’s route.

• New York State Canal SystemRelated: Locks make navigation possible across the system’s changes in elevation.

• Chesapeake and Ohio CanalRelated: A sequence of locks lifted canal boats more than 600 feet from Georgetown to Cumberland.

• Buckingham CanalRelated: Locks help explain how canal sections at differing water levels can be navigated.

• Canals of AmsterdamRelated: Locks help regulate water levels and movement between connected waterways.

• LingquRelated: Locks helped boats pass through the canal’s changing elevations.