ARTERIAL HIGH-STANDARD HIGHWAY TUNNEL
  • 2014 Chubu Crossing Tunnel Emergency Facility and Etc Design Project[MLIT Kofu Office]

  • Fudai-Kuji District Tunnel Detailed Design Project[MLIT Sanriku Office]

  • Second Tokyo-Nagoya Expressway Ganpo Tunnel Structure Investigation[Central NEXCO]

  • Hidaka Toyooka South Road No.3 Tunnel Detailed Design[MLIT Toyooka Office]

  • Kiseisen Susami Second Tunnel Detailed Design[MLIT Kinan Office]

  • Nikaho Honjo Road Tunnel Preliminary Detailed Design[MLIT Akita Office]

  • Kinki Road Kisei Line Kozato Tunnel Detailed Design[MLIT Kisei Office]

  • Second Soto-Kanjo Nishidai, Nishiyama Tunnel Preliminary Design[MLIT Kyoto Office]

  • East Kyushu Road Terajima Third Tunnel Detailed Design[MLIT Miyazaki Office]

INSPECTION / WIDENING / REPAIR / REINFORCEMENT
  • 2017 Takada District Tunnel Inspection Project[MLIT Takada Office]

  • 2012 Nagano National Highway Office District Tunnel Inspection Project[MLIT Nagano Office]

  • District Tunnel Inspection[MLIT Akita Office]

  • 2009 Ozu District Tunnel Inspection[MLIT Ozu Office]

  • Kokurobedani Tunnel Inspection and Repair Design[MLIT Kurobe Office]

  • Gassan First Tunnel Periodic Inspection Design[MLIT Sakata Office]

  • Yokote Tunnel Repair Design[MLIT Yamagata Office]

  • North Area District Tunnel Repair Design[MLIT Sendai Office]

  • Road Tunnel Periodic Inspection[MLIT Yokohama Office]

  • District Tunnel Repair Study[MLIT Koriyama Office]

  • District Tunnel Repair Design[MLIT Nagano Office]

  • Hiraoka, Otomi Tunnel Widening Design[Chiba Prefecture Gov’t]

LARGE SECTION TUNNEL
  • Chubu Crossing Tunnel Preliminary Design (Minobucho Obikane Area)[MLIT Kofu Office]

  • Metropolitan Inter-City Expressway Shiroyama Hachioji Tunnel Detailed Design[MLIT Sobu Office]

  • Second Tokyo-Nagoya Expressway Kakegawa First Tunnel Detailed Design[JH Kakegawa]

LONG,WIDE TUNNEL (Over 3.0km)
  • 2009 Takayama National Highway Area Tunnel Installation Detailed Corrected Design[MLIT Takayama Office]

  • Atsumi Tsuruoka Area Tunnel Affiliated Facilities Design[MLIT Sakata Office]

  • Metropolitan Inter-City Expressway Shiroyama Hachioji Tunnel Detailed Design[MLIT Sobu Office]

  • No.41 Takayama Kokufu Tunnel Detailed Design[MLIT Takayama Office]

NATIONAL HIGHWAYS TUNNEL
  • 2016 Mushino District Tunnel Detailed Design Project[MLIT Nagaoka Office]

  • 2014 Yokosuka District Tunnel Detailed Design Project[MLIT Yokohama Office]

  • 2012 Mikuni Tunnel Technical Study Project[MLIT Takasaki Office]

  • 2011 Kanazawatokan Gosho Tunnel Detailed Design Project[MLIT Takasaki Office]

  • 2009 Shimobara Improved Tunnel Detailed Corrected Design[MLIT Takayama Office]

  • No.156 Gifu East BP Iwata Mountain Tunnel Detailed Design[MLIT Gifu Office]

  • Ayado Bypass Tunnel Detailed Design[MLIT Takasaki Office]

  • Toga Dam Construction Road Tunnel Design[MLIT Toga Dam Office]

  • Shimosuwa Okaya BP Tunnel Preliminary Design[MLIT Nagano Office]

  • Yamakoshi Tunnel Detailed Design[MLIT Nagaoka Office]

  • No.20 Sasago Tunnel Scheme of Execution Study[MLIT Kofu Office]

  • Gamagori Bypass Tunnel Preliminary Design[MLIT Meishi Office]