Locks and Dams

Locks and dams are engineering structures used to help boats navigate rivers and canals with changing water levels. Dams control water flow and create a reservoir, while locks are like water elevators that raise or lower boats between different water levels. When a boat enters a lock, gates close, and water level is adjusted by adding or removing water, allowing safe passage. This system ensures smooth navigation by overcoming natural variations in river height, facilitating transportation and commerce along waterways.