The diagrams illustrate the mechanism of protecting houses in case of flooding.
Overall, there are two possibilities: when there is a stop bank and when there is no stop bank.
Firstly, it is imperative to analyze the outside construction of the house itself. The most noticeable measurement is calculating the free-board. Its length equals roughly 3 meters, starting at the house floor level and ending at the ponding level, which is estimated if the water from rivers or drains leaps steadily during a century. It only happens when there is no dam in front of the building.
In contrast, the design of the stop bank is to prevent the water from rising above its blank space. The berm and floodgate are the two mandatory components in the process, as they balance the water level so that the moisture inside the dam can flow to the surface. This reaction is called internal ponding. Additionally, the water particles lying on the ground evaporate and create clouds in the sky. As a result, people can see precipitations.
