In 3–5 sentences, describe a source of flooding that might affect a city and what flood mitigation techniques a city might use to help reduce the flood damage.

Answer 1

One significant source of flooding that can affect a city is heavy rainfall leading to river overflow, often exacerbated by urban development that increases impervious surfaces. To mitigate flood damage, cities can implement several techniques such as constructing retention basins to hold excess rainwater, developing green infrastructure like permeable pavements and green roofs to enhance stormwater absorption, and reinforcing natural waterways with levees and floodwalls. Additionally, the establishment of early warning systems and improved drainage systems can help manage stormwater effectively and reduce the impact of flooding events. Urban planning that incorporates flood risk assessments can further ensure that infrastructure is resilient to potential flooding.