Blocking a Tsunami
Prevention of Flooding on the Station Site
Various countermeasures are implemented including the installation of the tsunami protection wall.
![Tsunami protection wall and overflow protection wall(image)](/english/energy/hamaoka/provision/tsunami/station/img/img_01.gif)
Installing the tsunami protection wall and raising of the eastern and western cement-mixed soil embankments
A tsunami protection wall 22 m above sea level (total length approx. 1.6 km), and cement-mixed soil embankments at each end of the wall, 22 -24 m above sea level is being constructed.
![Tsunami protection wall structure(image)](/english/energy/hamaoka/provision/tsunami/station/img/img_02.gif)
![Diagram of the tsunami protection wall and cement-mixed soil embankments(image)](/english/energy/hamaoka/provision/tsunami/station/img/img_03.jpg)
![Tsunami protection wall(photo),Cement-mixed soil embankment(photo)](/english/energy/hamaoka/provision/tsunami/station/img/img_04.jpg)
![About the tsunami protection wall(note)](/english/energy/hamaoka/provision/tsunami/station/img/img_05.jpg)
Installation of overflow prevention walls
We are placing overflow prevention walls, approx. 4 m high, around water intake ponds in order to prevent the inflow of seawater from water intake channels that connect ponds with the ocean through tunnels.
![Installation image of the overflow prevention wall](/english/energy/hamaoka/provision/tsunami/station/img/img_06.jpg)