How did the Aztecs build and use causeways and canals?

The Aztecs built causeways and canals by using a combination of manual labor, stone, and soil. They constructed causeways to connect the city to the mainland and to navigate the water-filled landscape around Tenochtitlan, their capital city. Canals were used for transportation, irrigation, and drainage, allowing trade goods and resources to be easily transported throughout the city.