Canaletas are narrow channels or grooves designed to manage the flow of water, often found in urban environments. They are typically made of materials like concrete or plastic and are installed along streets, sidewalks, or in drainage systems to collect rainwater and prevent flooding. These structures help direct water to drainage systems or natural bodies of water, ensuring proper water management. By controlling water flow, canaletas play a crucial role in maintaining infrastructure and protecting the environment from erosion and water damage.