Common-Use Cable Tunnel Preliminary Design and Exploratory Drilling Survey [Tokyo MetropolitanPublic Co.]
Kitamoto Common-Use Cable Tunnel Detailed Design [MLIT Omiya Office]
District Common-Use Cable Tunnel Detailed Design [MLIT Hitachi Office]
Common-Use Cable Tunnel Detailed Design (Kokubunji 3,4,3) [Tokyo Metropolitan Gov’t]
Sanyu District Common-Use Cable Tunnel Detailed Design [MLIT Sagami Office]