LEED AP Building Design and Construction (BD+C) Practice Exam

What is the significance of a floodplain with a 1% or greater chance of flooding?

1. It signifies safe zones for construction

2. It indicates areas where development is not allowed

3. It means construction can proceed with additional permits

4. It highlights low-risk areas for development

The correct answer is: It indicates areas where development is not allowed

A floodplain with a 1% or greater chance of flooding, commonly referred to as a 100-year floodplain, is significant in terms of risk assessment for construction and development. This designation indicates that there is a substantial likelihood of flooding occurring in these areas within any given year. Choosing to restrict development in these areas often stems from the potential dangers posed to life, property, and infrastructure. Since these zones experience flooding with considerable frequency, they become high-risk locations that can lead to significant damage during flood events. As a result, many local governments implement stringent regulations that often prohibit or limit development in these floodplains to ensure safety and mitigate future damages. This designation is crucial for planners and developers because it informs site selection and risk management strategies. Understanding the implications of developing within a floodplain is essential, as potential consequences include increased insurance costs, potential for loss of life, and the need for expensive mitigation measures. The focus is on preventing construction in areas where safety is compromised due to high flooding risks.