Beaver protective dams have a wide footprint and offer extremely high stability. Based on our real-world experience under sometimes extreme conditions and on studies carried out, safety is ensured to a high degree in the applications known to us, provided the dam is used and set up correctly. The stability of a protective dam is influenced by the surface, the impact angle and velocity of the water, the lateral and longitudinal slope, and correct setup. In any case, we recommend factoring in freeboard and reserve damming height.
Sliding cannot be ruled out under certain circumstances. With a steep cross slope (lateral slope) over a length of several meters, the protective dam can start to slide. Slide resistance can be further reduced on long grass and grain stalks and on loose gravel. On snow and ice, slide resistance is not ensured. Sandbags placed on the land side of the Beaver dam increase slide resistance in case of doubt. This method is also recommended when a third tube has been added as an emergency measure.