American Design Drafting Association (ADDA) Certification 2026 – 400 Free Practice Questions to Pass the Exam

The purpose of a berm in landscaping or construction primarily revolves around managing stormwater runoff. A berm is an earth mound or raised barrier that helps redirect water flow, slows down runoff, and promotes infiltration into the soil. This is especially important in preventing erosion, controlling flooding, and enhancing water quality by allowing pollutants to settle out before they enter drainage systems or water bodies.

In many landscaping and construction scenarios, strategically placed berms can effectively manage rainwater and reduce the impact of heavy rainfall events. They can also help capture and hold runoff, providing a natural filter for any contaminants, which contributes to better environmental management and sustainability practices.

While berms can also have aesthetic value and may indirectly support structural elements, their primary function in most designs is related to stormwater management. Insulating building foundations is not a function typically associated with berms, further reinforcing why the focus is on stormwater management as the correct answer.