What is a common preventive measure against flooding in water systems?

Installing proper drainage systems and maintaining them is a fundamental preventive measure against flooding in water systems. Effective drainage systems help manage excess water during heavy rainfall or sudden storms by directing water away from vulnerable areas. This alleviates the pressure on water bodies and reduces the likelihood of overflow that can lead to flooding.

The maintenance of these systems is equally critical; clogged or damaged drainage can impede water flow, causing backups. Additionally, regularly inspecting and cleaning drainage channels ensures that they function optimally, reducing the risk of flooding during peak water events. This approach is proactive and ensures that the existing infrastructure can handle unexpected surges in water, thus safeguarding communities and the water supply infrastructure.

While the other options may contribute indirectly to water management, they do not specifically address the immediate need to manage excess water effectively. Restricting water usage during dry seasons can help conserve water but does not mitigate flooding concerns. Increasing the height of reservoirs may provide better water storage during high-demand periods but does not address the potential for flood control. Planting vegetation can aid in soil retention and reduce runoff, but it is not a substitute for robust drainage systems that actively manage water flow.