High winds can cause damage depending on how strong they are. Sometimes gusts of wind can make poorly made bridges move or be destroyed, like the Tacoma Narrows Bridge in 1940. Electric power distribution can fail because of wind, even if its speed is as low as . This happens when tree branches damage power lines. No kind of tree can resist hurricane-force winds, but trees with roots that are not very deep can be blown over more easily. Trees such as eucalyptus, sea hibiscus, and avocado are brittle (easy to break) and are damaged more easily.