What are three factors must be considered while designing a water retaining structure?

When designing a water retaining structure, three critical factors to consider are soil characteristics, structural materials, and hydraulic pressure. The soil's properties, such as permeability and stability, influence the structure's foundation and overall integrity. The choice of materials must ensure durability and resistance to water pressure and environmental conditions. Additionally, hydraulic pressure from the retained water needs to be calculated to ensure the structure can withstand the forces without failing.