Nagoya main line, Chiryu station area, Chiryu, Aichi Prefecture, retaining walls
2018 / Aichi / Civil engineering
Hakamano, Kyushu Shinkansen
2016 / Saga / Civil engineering
Okamachi, Hokkaido Shinkansen
2014 / Aomori / Civil engineering
Mantaro, Hokkaido Shinkansen
2013 / Hokkaido / Civil engineering
Nakanoshima Line, Keihan Electric Railway
2009 / Osaka / Civil engineering
Shimoda Akasaka, Tohoku Shinkansen
2008 / Aomori / Civil engineering
Tosu Shimono Viaduct, Kyushu Shinkansen
2007 / Saga / Civil engineering
Daibo Tunnel, Kyushu Shinkansen
2006 / Kumamoto / Civil engineering
Nippori-Toneri Liner
2006 / Tokyo / Civil engineering
Ayasegawa Tunnel, Joban Shinsen
2004 / Saitama / Civil engineering
Sakuramachi Saitama Tunnel
2000 / Saitama / Civil engineering
