A tragic accident occurred when a car fell off one of Shimanto River's sinking bridges, leading to a fatality. The bridges, unique features of the Shimanto area, are designed to become submerged during floods to prevent damage. The specific circumstances surrounding the accident, including details about the victim and possible reasons for the crash, have not been reported yet.

Accidents on these sinking bridges are relatively rare in Japan. The Japanese generally value safety highly and put substantial effort into maintaining infrastructure to prevent such incidents. This accident may lead to renewed discussions about the safety of these unique bridges during non-flood conditions.

In the US or EU, infrastructure accidents can lead to in-depth investigations and potential changes in regulations or infrastructure design. Similar to Japan, there are likely to be discussions about safety measures and whether current standards are sufficient to prevent such accidents in the future.