This picture shows one scene that I saw when I went to the foot of Mt. Fukuchi（福智山） by bike on Oct. 11. Probably, a land slide happened there and the slope is repaired by the concrete.
I thought how much money it cost and how many people's lives it can save. It looks a kind of "Koukyou-kouji"（公共工事）(in direct translation, public construction) that means the government build some constructions mainly to create jobs.
As you might know, Japanese land is occupied by large mountain area and we have a lot of rain. So, sometimes we see land slides（地すべり）.