Road Tunnels in Japan (>3 000 m)
Edited by: Gunnar Lotsberg and Eugenio A. Merzagora
6th revision, March 2006
Tunnel Length (m) Year of opening Prefec. Notes Expressway Road
Kan-etsu (south bound) 11 055 08.1991 NI-GU North bound 10 926 m (First tube, 1985)
Mizukami city. 		Kan-etsu  
Hida 10 712 05.07.2008 GI One tube + emergency tunnel. Tokai - Hokuriku  
Tokyo Aqua 9 583 18.12.1997 CH-KG The World's longest subsea road tunnel, Tokyo bay aqualine. 2nd (in bound) tube : 9576 m (-50 m)   409
Enasan 8 646 1985 NA-GI 1st (in bound) tube : 8498 m (1975) Chuo  
Yamate 8 400 7.3.2010 TO Central Circular Route in Tokyo (The Central Circular Route’s Shinagawa Route is set to open in 2013. New length: 11 000 m) Shuto C2
Shin-kobe 7 175 1988 HY 1st (in bound) tube: 6910 m (1976). Kobe city    
Karisaka 6 625 1998 YN-ST National Highway   140
Higo 6 340 1989 KU 2nd (in bound) tube: 6328 m (1999). Section Yatsushiro-Hitoyoshi Kyushu  
Kakuto 6 260 1995 KS 2nd (out bound) tube under construction: 6255 m. Section Hitoyoshi-Ebino Kyushu  
Hakamagishi 5 932 2000 TY   Tokai - Hokuriku  
? 5 900 2012 TO 2 tubes on Yokohama Circular Northern route    
Hanna (To Nara) 5 578 1997 NR-OS 2nd tube (To Osaka): 5576 m Daini Hanna  
Kanpuzan 5 432 1999 EH-KO Under Mt. Kanpu (Island of Shikoku)   194
Sasago 4 784 1977 YN 2nd (out bound) tube: 4717 m Chuo  
Koshirazu 4 563 1988 NI 2nd tube: 4555 m Hokuriku  
Gorigamine 4 474 1996 NA   Zyoshin-etus  
Abo 4 370 08.12.1977 GI-NA 2nd tube: 4313 m   158
Uji 4 313 1988 KY 2nd tube: 4313 m Keiji  
Sasagamine 4 307 1992 EH-KO Also named Mt. Otomi Kochi  
Taroyama 4 303 1996 NA   Zyoshin-etus  
Sakanashi 4 265 1986 AK-AO 2nd tube: 4264 m Tohoku  
Nozuka 4 232   HK Longest tunnel in Hokkaido   236
Yahatsu 4 159 1986 NA     150
Suribachiyama 4 099 1992 OY   Chugoku - Oudan  
Happusan 3 998 1993 GU 2nd tube under construction: 4468 m Kan-etsu  
Ohtohge 3 940 1992 FS-YA     121
Junanago 3 920 1957 NI      
Nagamine 3 831 1984 WA   Kainan - Yuasa  
Chiyoda 3 761 1964 TO      
Sen-nin daiichi 3 744   IW   Akita  
Rittou 3 737 1997 SH Three lanes Daini - Tokai  
Myojin 3 728 1987 KO 2nd tube under construction: 3714 m Shikoku - Oudan  
Sobu 3 692 U.C. KY-TT      
Ryuugatake 3 645 1987 NI   Ban-etsu  
Aida 3 629 1993 NA 2nd tube: 3598 m Chuo  
Fukuchiyama 3 596 1988 KY 2nd tube: 3589 m. Section Kokura minami-Yahata Kyushu  
Ushizuyama 3 573 1983 HI 2nd tube: 3558 m (1992). Section Hiroshima kita-Togouchi Chokogu  
Onikoube 3 527   MG-AK     108
Kanmon 3 461 1958 FK-YG Subsea tunnel, Kanmon Strait   2
Maiko 3 393 1997 HY 12.75 m wide access road (3 lanes) to the largest single-span bridge in the world between the islands of Honshu and Shikoku   28
Ginga 3 388   HK Hokkaido   39
Sasaya 3 385 1990 MG-YA   Yamagata  
Kake Higashi 3 365 1983 HI 2nd tube: 3277 m Chogoku - Oudan  
Tsuchiyu 3 360 1989 FS     115
Ichifuri 3 342 1988 NI 2nd tube: 3326 m Hokuriku  
Ukishima 3 332 1984 HK Hokkaido   273
Sekido 3 325 1988 YG 2nd tube: 3217 m Sanyo  
Hamamatsu 3 262   SZ   Daini - Tokai  
Koneyama 3 260 1989 SM-YG Shortest tube: 3154 m. Section Muikaichi-Kano Chugoku - Oudan  
Tsuruga (Hokuriku) 3 225 1977 FU Second tube: 3225 m (1980) Hokuriku  
Ipponmatsu 3 203 1993 NA   Chuo  
Kasaiyama 3 197 1993 OY Second tube: 3181 m (1989) Sanyo  
Johana 3 192 2000 TY   Tokai - Hokuriku  
Michinoku 3 178 1980 AO      
Jukyugo 3 130 1971 NI      
Hoh-oh 3 123 1992 EH-KO   Shikoku - Oudan  
Takanomine 3 097 1988 NI   Hokuriku  
Gokayama 3 072   TY     304
Juhachigo 3 057 1957 NI      
Kagamigahara 3 050 1986 KU   Tokai - Hokuriku  
Nunobiki 2 3 032   HY Kobe city    
Shimizu 2 3 027   SZ   Daini - Tokai  
Yatsukusa 3 025   GI     303
Shimizu 1 3 000 1997 SZ   Daini - Tokai  

Warm thanks to: Minoru Hirano, Japan Highway Public Information, Nobuharu Isago

Legenda:
Red: under costruction
Pink: in project
*: nickname
TC: Tranch�e Couvert (Covered road)

Road Tunnels in Japan < 3 000 m

 

 Legenda: Regions in Japan / Regioni in Giappone / Regions en Japon /

  Region
KIN Kinki
KOK Kyushu - Okinawa
  Region
TOH Tohoku
CHB Chubu
  Region
KAN Kanto
CHK Chugoku
  Region
SHK Shikoku
HOK Hokkaido

 

Legenda: Prefectures in Japan / Prefetture in Giappone / Nippon Ken /

  Prefecture (Ken) Capital Reg
AI Aichi Nagoya CHB
AK Akita Akita TOH
AO Aomori Aomori TOH
CH Chiba Chiba KAN
EH Ehime Matsuyama SHK
FU Fukui Fukui CHB
FK Fukuoka Fukuoka KOK
MG Miyagi Sendai TOH
FS Fukushima Fukushima TOH
GI Gifu Gifu CHB
GU Gunma Maebashi KAN
HI Hiroshima Hiroshima CHK
HK Hokkaido Sapporo HOK
HY Hyogo Kobe KIN
IB Ibaraki Mito KAN
IS Ishikawa Kanazawa CHB
  Prefecture (Ken) Capital Reg
IW Iwate Morioka TOH
KA Kagawa Takamatsu SHK
KS Kagoshima Kagoshima KOK
KU Kumamoto Kumamoto KOK
KG Kanagawa Yokohama KAN
KO Kochi Kochi SHK
KY Kyoto Kyoto KIN
MI Mie Tsu KIN
MY Miyazaki Miyazaki KOK
NA Nagano Nagano CHB
NS Nagasaki Nagasaki KOK
NR Nara Nara KIN
NI Niigata Niigata CHB
OI Oita Oita KOK
OY Okayama Okayama CHK
OK Okinawa Naha KOK
  Prefecture (Ken) Capital Reg
OS Osaka Osaka KIN
SA Saga Saga KOK
ST Saitama Urawa KAN
SH Shiga Otsu KIN
SM Shimane Matsue CHK
SZ Shizuoka Shizuoka CHB
TC Tochigi Utsunomiya KAN
TK Tokushima Tokushima SHK
TO Tokyo Tokyo KAN
TT Tottori Tottori CHK
TY Toyama Toyama CHB
WA Wakayama Wakayama KIN
YA Yamagata Yamagata TOH
YG Yamaguchi Yamaguchi CHK
YN Yamanashi Kofu CHB


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This page was last modified on May 10, 2011