KOBE is one of the leading tourist destinations in Japan.

Chronic traffic congestion has been a problem in KOBE Japan.Underground bypass was constructed to resolve the traffic congestion and improve the local environment, and pipe-roofing construction of Iseki Poly-Tech inc was carried out as supplemental protection of the underground bypass.
In this project, we carried out the construction of a 150m pipe-roofing, which was the longest in Japan at that time. By utilizing the pipe-roofing method, the construction was carried out without blocking the flow of traffic at the ground intersection.
After the construction, the problem of traffic congestion was resolved and the surrounding environment was improved, contributing to the local community.