Orderer Ministry of Land, Infrastructure, Transport and Tourism, Kanto Regional Development Bureau
Completion 2016
Structure and scale Tokyo Outer Ring Road, length 190m (excavated slits:
150m, box culverts: 40m); width: 25m
Location Chiba Prefecture
Application Road

40m of box culverts and 150m of excavated slits (total of 190m) were developed using the excavation method while cutting around National Road 298 and City Road 7094 located approximately 2km upstream from the Expressway Bay Shore Route Koya Junction on the Tokyo Gaikan Expressway.