To obtain a roadside wall which enables water to be efficiently sprinkled on a road surface even if sprinkled over a long-distance range.
A wall section 14 of a sound insulation wall 12 is installed in the lateral direction of an expressway 10, and a receiving section 16 is arranged above the wall section 14. During rainfall time, rainwater flows into a piping section 20 from the receiving section 16 after being received by the receiving section 16, and is guided for storage to an in-piping lower part in the piping section 20. The stored rainwater is sprinkled on the road surface by making an on-off valve 26 opened in a water sprinkling section 24. This enables the water to be efficiently sprinkled on the road surface even if sprinkled over the long-distance range.
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda