Suojavalli
Suojavalli is a Finnish term that translates to "protective dike" or "protective embankment." It refers to a raised earthen structure designed to prevent or mitigate the effects of flooding, erosion, or other environmental hazards. These structures are typically constructed from soil, gravel, or other natural materials, though sometimes they may incorporate concrete or other reinforcing elements.
The primary purpose of a suojavalli is to create a barrier between an area vulnerable to flooding