Canal structures are essential components of waterways designed to manage water flow and navigation. They include features like locks, which allow boats to move between different water levels, and gates, which control water levels and prevent flooding. These structures help maintain the canal's functionality and safety. Additionally, canal structures often incorporate culverts and bridges to facilitate road crossings and drainage. Aqueducts may also be used to carry canals over obstacles like rivers or valleys. Together, these elements ensure that canals serve their purpose effectively, supporting transportation and irrigation.