ARTERIAL HIGH-STANDARD HIGHWAY TUNNEL
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2014 Chubu Crossing Tunnel Emergency Facility and Etc Design Project[MLIT Kofu Office]
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Fudai-Kuji District Tunnel Detailed Design Project[MLIT Sanriku Office]
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Second Tokyo-Nagoya Expressway Ganpo Tunnel Structure Investigation[Central NEXCO]
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Hidaka Toyooka South Road No.3 Tunnel Detailed Design[MLIT Toyooka Office]
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Kiseisen Susami Second Tunnel Detailed Design[MLIT Kinan Office]
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Nikaho Honjo Road Tunnel Preliminary Detailed Design[MLIT Akita Office]
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Kinki Road Kisei Line Kozato Tunnel Detailed Design[MLIT Kisei Office]
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Second Soto-Kanjo Nishidai, Nishiyama Tunnel Preliminary Design[MLIT Kyoto Office]
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East Kyushu Road Terajima Third Tunnel Detailed Design[MLIT Miyazaki Office]
INSPECTION / WIDENING / REPAIR / REINFORCEMENT
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2017 Takada District Tunnel Inspection Project[MLIT Takada Office]
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2012 Nagano National Highway Office District Tunnel Inspection Project[MLIT Nagano Office]
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District Tunnel Inspection[MLIT Akita Office]
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2009 Ozu District Tunnel Inspection[MLIT Ozu Office]
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Kokurobedani Tunnel Inspection and Repair Design[MLIT Kurobe Office]
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Gassan First Tunnel Periodic Inspection Design[MLIT Sakata Office]
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Yokote Tunnel Repair Design[MLIT Yamagata Office]
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North Area District Tunnel Repair Design[MLIT Sendai Office]
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Road Tunnel Periodic Inspection[MLIT Yokohama Office]
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District Tunnel Repair Study[MLIT Koriyama Office]
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District Tunnel Repair Design[MLIT Nagano Office]
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Hiraoka, Otomi Tunnel Widening Design[Chiba Prefecture Gov’t]
LARGE SECTION TUNNEL
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Chubu Crossing Tunnel Preliminary Design (Minobucho Obikane Area)[MLIT Kofu Office]
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Metropolitan Inter-City Expressway Shiroyama Hachioji Tunnel Detailed Design[MLIT Sobu Office]
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Second Tokyo-Nagoya Expressway Kakegawa First Tunnel Detailed Design[JH Kakegawa]
LONG,WIDE TUNNEL (Over 3.0km)
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2009 Takayama National Highway Area Tunnel Installation Detailed Corrected Design[MLIT Takayama Office]
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Atsumi Tsuruoka Area Tunnel Affiliated Facilities Design[MLIT Sakata Office]
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Metropolitan Inter-City Expressway Shiroyama Hachioji Tunnel Detailed Design[MLIT Sobu Office]
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No.41 Takayama Kokufu Tunnel Detailed Design[MLIT Takayama Office]
NATIONAL HIGHWAYS TUNNEL
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2016 Mushino District Tunnel Detailed Design Project[MLIT Nagaoka Office]
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2014 Yokosuka District Tunnel Detailed Design Project[MLIT Yokohama Office]
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2012 Mikuni Tunnel Technical Study Project[MLIT Takasaki Office]
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2011 Kanazawatokan Gosho Tunnel Detailed Design Project[MLIT Takasaki Office]
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2009 Shimobara Improved Tunnel Detailed Corrected Design[MLIT Takayama Office]
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No.156 Gifu East BP Iwata Mountain Tunnel Detailed Design[MLIT Gifu Office]
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Ayado Bypass Tunnel Detailed Design[MLIT Takasaki Office]
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Toga Dam Construction Road Tunnel Design[MLIT Toga Dam Office]
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Shimosuwa Okaya BP Tunnel Preliminary Design[MLIT Nagano Office]
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Yamakoshi Tunnel Detailed Design[MLIT Nagaoka Office]
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No.20 Sasago Tunnel Scheme of Execution Study[MLIT Kofu Office]
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Gamagori Bypass Tunnel Preliminary Design[MLIT Meishi Office]