Nagano Expressway
長野自動車道 | |
Route information | |
Maintained by East Nippon Expressway Company and Central Nippon Expressway Company | |
Length | 75.8 km[1] (47.1 mi) |
Existed | 1986[2]–present |
Major junctions | |
From | Okaya Junction in Okaya, Nagano |
To | Kōshoku Junction in Chikuma, Nagano |
Location | |
Country | Japan |
Major cities | Shiojiri, Matsumoto, Azumino |
Highway system | |
The Nagano Expressway (長野自動車道, Nagano Jidōsha-dō) is a 4-laned national expressway in Nagano Prefecture, Japan. It is owned and operated by East Nippon Expressway Company and Central Nippon Expressway Company.
Naming
The expressway is officially referred to as the Chūō Expressway Nagano Route. The Chūō Expressway Nagano Route is the official designation for the Chūō Expressway between Takaido Interchange and Okaya Junction (concurrent with the Chūō Expressway Nishinomiya Route), the Nagano Expressway between Okaya Junction and Kōshoku Junction, and the Jōshin-etsu Expressway between Kōshoku Junction and Suzaka-Naganohigashi Interchange (concurrent with the Kan-Etsu Expressway Jōetsu Route).[3]
Overview
The expressway was originally built and managed by Japan Highway Public Corporation. On 1 October 2005, the management of the route was assigned to East Nippon Expressway Company (Kōshoku Junction to Azumino Interchange, excluding the interchange) and Central Nippon Expressway Company (Okaya Junction to Azumino Interchange, including the interchange).[4][5]
The route of the expressway runs through the central part of Nagano Prefecture. From the origin at a junction with the Chūō Expressway in the city of Okaya near Lake Suwa, the expressway follows a northerly course to Matsumoto, the major city in the central Nagano area. From here the expressway follows a winding northeasterly course through mountainous areas before reaching the terminus in the city of Chikuma. Beyond the terminus, the roadway continues as the Jōshin-etsu Expressway towards the city of Nagano, the prefectural capital.
History
- 25 March 1986 - Okaya Junction - Okaya Interchange section is opened as part of the Chūō Expressway.
- 5 March 1988 - Okaya Interchange - Matsumoto Interchange section is opened, Okaya Junction - Okaya Interchange section is incorporated as part of the Nagano Expressway.
- 3 August 1988 - Matsumoto Interchange - Toyoshina Interchange section is opened.
- 25 March 1993 - Toyoshina Interchange - Kōshoku Junction section is opened, connects with Jōshin-etsu Expressway.
- 1 October 2006 - Obasute Smart Interchange is opened at Obasute Service Area.
List of interchanges and features
This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table. |
- IC - interchange, SIC - smart interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, CB - snow chains, TN - tunnel, BR - bridge
No. | Name | Connections | Dist. from Origin |
Dist. from Terminus |
Bus Stop | Notes | Speed Limit | Location (all in Nagano) | |
---|---|---|---|---|---|---|---|---|---|
(21) | Okaya JCT | 0.0 | 75.8 | 70 km/h | Okaya | ||||
BR | Okaya Overpass | ↓ | ↑ | Length - 1,488m | |||||
TN | Okaya Tunnel | ↓ | ↑ | North-bound 1,450 m South-bound 1,386 m | |||||
1 | Okaya IC/ Okaya (Imai) BS |
3.7 | 72.1 | ○ | |||||
TN | Enrei Tunnel | ↓ | ↑ | North-bound 1,800 m South-bound 1,707 m | |||||
Shiojiri | |||||||||
PA | Midoriko PA | 8.4 | 67.4 | ○ | |||||
2 | Shiojiri IC | 10.9 | 64.9 | ||||||
100 km/h | |||||||||
BS | Hirooka-Nomura BS | 14.1 | 61.7 | ○ | |||||
3 | Shiojiri-kita IC | Pref. Route 27 (Matsumoto Airport Shiojiri-kita Inter Route) | 17.6 | 58.2 | |||||
BR | Naraigawa Bridge | ↓ | ↑ | Matsumoto | |||||
BS | Kanbayashi BS | 21.0 | 54.8 | ○ | |||||
<3-1> | Matsumoto JCT | ↓ | ↑ | Planned | |||||
4 | Matsumoto IC | 25.8 | 50.0 | ○ | |||||
SA | Azusagawa SA/SIC | Pref. Route 48 (Matsumoto Kanjō Takaya Route) | 29.1 | (46.7) | Kōshoku-bound only | ||||
BR | Azusagawa Bridge | ↓ | ↑ | Length - 390m | |||||
Azumino | |||||||||
SA | Azusagawa SA/SIC | (29.9) | 45.9 | Okaya-bound only | |||||
5 | Azumino IC | Pref. Route 57 (Azumino Inter Horigane Route) Pref. Route 310 (Hakuyachō Tazawa Teishajō Route) |
33.1 | 42.7 | ○ | ||||
80 km/h | |||||||||
BR | Saigawa Bridge | ↓ | ↑ | Length - 650m | |||||
BS | Akashina BS | 36.5 | 39.3 | ○ | |||||
TN | Akashina Tunnel | ↓ | ↑ | North-bound 2,512 m South-bound 2,536 m | |||||
BS | Shiga BS | 40.5 | 35.3 | ○ | Emergency vehicle entrance/exit | Matsumoto | |||
TN | Tachitoge Tunnel | ↓ | ↑ | North-bound 3,629 m South-bound 3,598 m | |||||
Chikuhoku | |||||||||
BS | Honjō BS | 47.3 | 28.5 | ○ | Emergency vehicle entrance/exit | ||||
BS | Sakakita BS | 51.5 | 24.3 | ○ | |||||
PA | Chikuhoku PA/SIC | 52.8 | 23.0 | SIC planned | |||||
Omi | |||||||||
6 | Omi IC | 56.3 | 19.5 | ○ | |||||
TN | Ipponmatsu Tunnel | ↓ | ↑ | North-bound 3,191 m South-bound 3,203 m | |||||
Chikuma | |||||||||
SA | Obasute SA/ SIC |
63.6 | 12.2 | ○ | |||||
BR | Chikumagawa Bridge | ↓ | ↑ | Length - 530m | Nagano | ||||
Chikuma | |||||||||
7 | Kōshoku IC | 74.9 | 0.9 | ○ | |||||
(12) | Kōshoku JCT | 75.8 | 0.0 | ||||||
Through to |
There is one snow chain changing area between Obasute Service Area and Kōshoku Interchange.
References
- ^ Kanto Regional Development Bureau. "Road Timetable" (in Japanese). Ministry of Land, Infrastructure and Transport. Archived from the original on 4 June 2004. Retrieved 16 April 2008.
- ^ "Expressway Opening Dates" (in Japanese). Retrieved 16 April 2008.
- ^ Ministry of Land & Infrastructure and Transport. "High Standard Trunk Road Map" (PDF) (in Japanese). Archived from the original (PDF) on 20 September 2011. Retrieved 13 April 2008.
- ^ Mizutani, Fumitoshi & Uranishi, Shuji (2006). Privatization of the Japan Highway Public Corporation: Policy Assessment (PDF). 46th Congress for the European Regional Science Association. Volos, Greece. Retrieved 11 April 2008.
- ^ "NEXCO-Central Business Outline" (PDF). Retrieved 13 April 2008.[permanent dead link]