definition
strict definition
water transport structure
Fixed or permanent structures in water that assist the navigation or handling of boats and other water transport.
Water transport structures are fixed or permanent structures built in or in the midst of water in order to assist the navigation of boats, rafts, and other forms of water transport.
The structures support waterborne movement and its associated access or vessel handling. Their forms differ according to the part of that process they serve.
A lock enables passage between water sections, while a drydock provides a drainable basin for work on vessels. Both are permanent facilities associated with water transport.
