Bridges Facing the Sea of Japan

The Hokuriku region (especially Toyama, Ishikawa, and Fukui prefectures) faces the Sea of Japan, and bridges located along the coast are significantly affected by salt carried by seasonal winds.

Application of Anti-freezing Agents

As a snowy and cold region, major arterial roads are treated with anti-freezing agents during the winter season.

Andesite Aggregate in Concrete

This region is known for alkali-silica reaction (ASR) caused mainly by andesite aggregates. Additionally, high-altitude areas in mountainous regions are prone to frost damage.