ARTERIAL HIGH-STANDARD HIGHWAY TUNNEL
2014 Chubu Crossing Tunnel Emergency Facility and Etc Design Project
Fudai-Kuji District Tunnel Detailed Design Project
Second Tokyo-Nagoya Expressway Ganpo Tunnel Structure Investigation
Hidaka Toyooka South Road No.3 Tunnel Detailed Design
Kiseisen Susami Second Tunnel Detailed Design
Nikaho Honjo Road Tunnel Preliminary Detailed Design
Kinki Road Kisei Line Kozato Tunnel Detailed Design
Second Soto-Kanjo Nishidai, Nishiyama Tunnel Preliminary Design
East Kyushu Road Terajima Third Tunnel Detailed Design
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]