NEXCO CENTRAL (Central Nippon Expressway Company Limited)

E20 Investigation Committee on Seismic Retrofitting of Bridges Crossing the Chuo Expressway

Central Nippon Expressway Company Limited, Ltd. has made an investigation to investigate the cause of this case and a proposal for prevention of recurrence in response to the occurrence of a construction defect due to lack of reinforcing bars in the seismic retrofitting work of the bridge ordered by the Regional Head Office We have set up the "Investigation Committee on Defects in Seismic Retrofitting of Bridges Chuo Expressway" by outside experts to do this.

Member list (in alphabetical order, title omitted)

Toshiyuki Sugiyama
Yamanashi University Director / Vice President
Committee member
Kazumasa Ozawa
Professor, Graduate School of Engineering, The University of Tokyo
Committee member
Atsushi Tsunoda
Committee member
Shigeki Kusunoki
Professor, Faculty of Law, Sophia University
Committee member
Hiroshi Zama
Kazuhide Maebu
Ministry of Land, Infrastructure, Transport and Tourism Road Bureau National Road and Technology Section Chief

Contents of proceedings

First Committee

Second Committee




  • Return to the top of the page