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|---|---|
 上信越自動車道 | |
 | |
| Route information | |
| Length | 204.9 km[2] (127.3 mi) |
| Existed | 1980[1]–present |
| Major junctions | |
| From |  Kan-etsu ExpresswayFujioka Junction inFujioka, Gunma (36°16′24″N139°05′25″E / 36.2732°N 139.0902°E /36.2732; 139.0902) |
| To |  Hokuriku ExpresswayJōetsu Junction inJōetsu, Niigata (37°08′14″N138°12′50″E / 37.1371°N 138.2139°E /37.1371; 138.2139) |
| Location | |
| Country | Japan |
| Major cities | Tomioka,Annaka,Saku,Komoro,Ueda,Chikuma,Nagano,Nakano,Myōkō |
| Highway system | |
TheJōshin-etsu Expressway (上信越自動車道,Jōshin'etsu Jidōshadō) is a nationalexpressway inJapan. It is owned and operated byEast Nippon Expressway Company.
Jōshin-etsu (上信越;Japanese pronunciation:[dʑoː.ɕiꜜɰ̃.e.tsɯ][3]) is akanjiacronym consisting of 3 characters, each representing the former names of the prefectures that the route traverses.Kōzuke Province (上野国) consists of present-dayGunma Prefecture,Shinano Province (信濃国) consists of present-dayNagano Prefecture, andEchigo Province (越後国) consists of present-dayNiigata Prefecture.
Officially, the expressway is referred to as the Kan-Etsu Expressway Jōetsu Route. This designation consists of the entire Jōshin-etsu Expressway as well as theKan-Etsu Expressway beyond Fujioka Junction toNerima Interchange (concurrent with the Kan-Etsu Expressway Niigata Route).[4]
The expressway begins at a junction with the Kan-Etsu Expressway in southern Gunma Prefecture and heads west, parallelingNational Route 254 untilShimonita. From here the route branches north, passingMount Myōgi, then heads west once more fromAnnaka. The route parallelsNational Route 18 from this point until the terminus. The expressway then follows a winding route through the mountainous area separating Gunma and Nagano Prefectures. FromSaku, Nagano the route follows a northwesterly course, passingMount Asama, until it reaches a junction with theNagano Expressway near the city ofNagano. The route then heads north, following the east bank of theChikuma River, before heading into the mountainous region separating Nagano and Niigata Prefectures. The expressway continues north through Niigata Prefecture, passingMount Myōkō, and eventually terminating at a junction with theHokuriku Expressway inJōetsu near theJapan Sea coastline.
The expressway is 6 lanes from Fujioka Junction toFujioka Interchange. The remaining section from Fujioka Interchange to Jōetsu Junction is 4 lanes, from 5 December 2019 according to E-NEXCO.[5]
The first section was completed in 1980 and the entire route was completed in 1999.[6] On the night of 16 December 2020, about 300 vehicles were trapped on the expressway after a truck blocked it off due to it becoming stuck in the snow. In response, the company that manages the route supplied drivers who were stuck on the road until the next morning.[7]
 | This article contains a bulleted list or table of intersections whichshould be presented in a properly formatted junction table. Please consultthis guideline for information on how to create one. Pleaseimprove this article if you can.(November 2021) |
| No. | Name | Connections | Dist. from Origin | Dist. from Terminus | Bus Stop | Notes | Speed Limit | Location | |
|---|---|---|---|---|---|---|---|---|---|
| (9) | Fujioka JCT | Kan-etsu Expressway | 0.0 | 204.9 | 80 km/h | Fujioka | Gunma | ||
| 1/PA | Fujioka IC/PA | Pref. Route 13 (Maebashi Nagatoro Route) | 1.8 | 203.1 | Parking Area/Highway Oasis only accessible to Fujioka JCT-bound traffic | ||||
| 100 km/h | |||||||||
| 2 | Yoshii IC | Pref. Route 41 (Kanda Yoshii Teishajō Route) | 11.2 | 193.7 | Takasaki | ||||
| PA | Kanra PA | 15.4 | 189.5 | Kanra | |||||
| 3 | Tomioka IC | 20.1 | 184.8 | ○ | Tomioka | ||||
| 4 | Shimonita IC |  National Route 254 | 26.8 | 178.1 | ○ | Shimonita | |||
| 5 | Matsuida-Myōgi IC Matsuida BS | Pref. Route 51 (Matsuida Shimonita Route) | 37.5 | 167.4 | ○ | Annaka | |||
| 80 km/h | |||||||||
| SA | Yokokawa SA | 42.1 | 162.8 | ||||||
| BR | Usui Bridge | ↓ | ↑ | ||||||
| TN | Takaiwayama Tunnel | ↓ | ↑ | Fujioka-bound 1,019m Jōetsu-bound 1,070m | |||||
| 6 | Usui-Karuizawa IC | Pref. Route 92 (Matsuida Karuizawa Route) | 52.5 | 152.4 | ○ | ||||
| CB | Usui Chain Base | ↓ | ↑ | ||||||
| TN | Ōyama Tunnel | ↓ | ↑ | Fujioka-bound 1,722m Jōetsu-bound 1,625m | |||||
| Shimonita | |||||||||
| TN | Nikkureyama Tunnel | ↓ | ↑ | Fujioka-bound 2,314m Jōetsu-bound 2,051m | |||||
| TN | Takatachi Tunnel | ↓ | ↑ | Fujioka-bound 373m | |||||
| TN | Happūzan Tunnel | ↓ | ↑ | Fujioka-bound 3,998m Jōetsu-bound 4,471m | |||||
| Saku | Nagano | ||||||||
| CB | Kōsaka Chain Base | ↓ | ↑ | ||||||
| TN | Akarusan Tunnel | ↓ | ↑ | Fujioka-bound 1,703m Jōetsu-bound 1,960m | |||||
| 6-1/PA | Sakudaira PA/ SIC | 68.4 | 136.5 | Highway Oasis | |||||
| 7 | Saku IC | Pref. Route 9 (Saku Karuizawa Route) | 71.3 | 133.6 | ○ | ||||
| 7-1 | Saku-Komoro JCT |  Chūbu-Ōdan Expressway | 72.8 | 132.1 | Komoro | ||||
| BS | Komoro-Kōgen BS | 78.0 | 126.9 | ○ | |||||
| 8 | Komoro IC | Pref. Route 79 (Komoro Ueda Route) | 82.1 | 122.8 | |||||
| 9/SA | Tōbu-Yunomaru IC/SA | Pref. Route 81 (Maruko Tōbu Inter Route) | 88.6 | 116.3 | ○ | Tōmi | |||
| 10 | Ueda-Sugadaira IC |  National Route 144 | 96.9 | 108.0 | ○ | Ueda | |||
| TN | Tarōyama Tunnel | ↓ | ↑ | Fujioka-bound 4,264m Jōetsu-bound 4,303m | |||||
| Sakaki | |||||||||
| 11 | Sakaki IC | Pref. Route 91 (Sakaki Inter Route) | 104.8 | 100.1 | |||||
| PA | Chikumagawa-Sakaki PA | 106.2 | 98.7 | ○ | |||||
| TN | Gorigamine Tunnel | ↓ | ↑ | Fujioka-bound 4,518m Jōetsu-bound 4,474m | |||||
| Chikuma | |||||||||
| TN | Mori Tunnel | ↓ | ↑ | Fujioka-bound 1,421m Jōetsu-bound 1,450m | |||||
| BS | Yashiro BS | 117.1 | 87.8 | ○ | |||||
| 12 | Kōshoku JCT |  Nagano Expressway | 119.1 | 85.8 | |||||
| 100 km/h | |||||||||
| TN | Yakushiyama Tunnel | ↓ | ↑ | Fujioka-bound 1,212m Jōetsu-bound 1,181m | |||||
| Nagano | |||||||||
| PA | Matsushiro PA | 123.2 | 81.7 | ||||||
| 13 | Nagano IC | Pref. Route 35 (Nagano Sanada Route) | 125.1 | 79.8 | ○ | ||||
| BS | Wakaho BS | 130.2 | 74.7 | ○ | |||||
| 14 | Suzaka-Naganohigashi IC |  National Route 403 | 135.0 | 69.9 | |||||
| Suzaka | |||||||||
| BS | Suzaka BS | 137.5 | 67.4 | ○ | |||||
| 14-1/PA | Obuse PA/ SIC | Pref. Route 343 (Murayama Obuse Teishajō Route) | 141.6 | 63.3 | Highway Oasis | Obuse | |||
| BS | Obuse BS | 143.2 | 61.7 | ○ | |||||
| 15 | Shinshū-Nakano IC | Pref. Route 29 (Nakano Toyono Route) | 146.5 | 58.4 | Nakano | ||||
| 80 km/h | |||||||||
| BS | Nakano BS | 147.2 | 57.7 | ○ | |||||
| BR | Kita-Chikumagawa Bridge | ↓ | ↑ | Length - 370m Chikuma River crossing | |||||
| CB | Kaesa Chain Base | ↓ | ↑ | ||||||
| 16 | Toyota-Iiyama IC |  National Route 117 | 154.2 | 50.7 | |||||
| 70 km/h | |||||||||
| BS | Toyota BS | 155.0 | 49.9 | ○ | |||||
| TN | Nagae Tunnel | ↓ | ↑ | ||||||
| TN | Samizu Tunnel | ↓ | ↑ | Fujioka-bound 1,415m Jōetsu-bound 1,441m | Iizuna | ||||
| TN | Yakushidake Tunnel | ↓ | ↑ | Fujioka-bound 2,320m Jōetsu-bound 2,362m | |||||
| Shinano | |||||||||
| PA | Kurohime-Nojiriko PA | 164.3 | 40.6 | ||||||
| BS | Kashiwabara BS | 166.2 | 38.7 | ○ | |||||
| 17 | Shinanomachi IC |  National Route 18 (Nojiri Bypass) | 167.4 | 37.5 | |||||
| BR | Reimei Bridge | ↓ | ↑ | Length - 370m Seki River crossing | |||||
| Myōkō | Niigata | ||||||||
| 18 | Myōkōkōgen IC | National Route 18 (Myōkō Nojiri Bypass) Pref. Route 187 (Ikenotaira Myōkōkōgen Route) | 172.5 | 32.4 | |||||
| BS | Myōkōkōgen BS | ↓ | ↑ | X | Bus Stop closed | ||||
| SA | Myōkō SA | 179.9 | 25.0 | X | Bus Stop closed | ||||
| 19 | Nakagō IC | National Route 18 (Jōshin Bypass) | 184.5 | 20.4 | Jōetsu | ||||
| BS | Nakagō-kita BS | ↓ | ↑ | X | Bus Stop closed | ||||
| 19-1/PA | Arai PA/ SIC | Pref. Route 428 (Nishinoyashinden Arai Route) | 191.9 | 13.0 | X | Highway Oasis Bus Stop closed | Myōkō | ||
| TN | Kannondaira Tunnel | ↓ | ↑ | Length - 1,502m | |||||
| 20 | Jōetsu-Takada IC | Pref. Route 85 (Jōetsu-Takada Inter Route) | 199.0 | 5.9 | Jōetsu | ||||
| (31-1) | Jōetsu JCT | Hokuriku Expressway | 204.9 | 0.0 | |||||
There are also 2 snow chain changing areas between Toyota-Iiyama Interchange and Kurohime-Nojiriko Parking Area, and 1 area between Sakaki Interchange and Ueda-Sugadaira Interchange (Fujioka-bound only).
{{cite web}}: CS1 maint: multiple names: authors list (link)