HSBE TOP > Information > Kobe-Awaji-Naruto Expressway

Kobe-Awaji-Naruto Expressway

Crossing the two straits

The eastern route, Kobe-Awaji-Naruto Expressway is about 89 kilometers long from Kobe in Honshu to Naruto in Shikoku.

The Akashi-Kaikyo Bridge crosses the Akashi Strait (width:4km) and the Ohnaruto Bridge crosses the Naruto Strait (width: 1.3km).

The Ohnaruto Bridge was opened to traffic in June 1985.

The Akashi-Kaikyo Bridge, the world's longest suspension bridge, was put in service in April 1998.


ItemsBetween Kobe-Nishi IC and Naruto IC in Kobe-Awaji-Naruto Expressway
1. Route

2. Location



3. Length






4. Construction Cost


5. History










6. Present Conditions
National Highway 28

From: 4-1-4, Mitsugaoka, Nishi-ku, Kobe city, Hyogo Pref. (Kobe-Nishi IC)
To: 1338-12, Aza-Harayama, Kizu, Muya town, Naruto city, Tokushima Pref. (Naruto IC)

89.0km
Number of bridges: 96, Total length of the bridges: 24.3 km
(Among them, the lengths of Akashi-Kaikyo Bridge and Ohnaruto Bridge are 3,911 m and 1,629 m, respectively.)
Number of tunnels: 8, Total length of the tunnels: 7.4 km
Length of earth work: 57.3 km

About 980 Billion JPY (Akashi-Kaikyo Bridge related portion)
About 380 Billion JPY (Ohnaruto Bridge related portion)

June 8, 1985:
- Highway between Tsuna-Ichinomiya IC and Sumoto IC is put in service.
June 8, 1985:
- Highway between Seidan Ramp and Naruto-Kita IC is put in service.
May 23, 1987:
- Highway between Naruto-Kita IC and Naruto IC is put in service.
October 8, 1987:
- Highway between Sumoto IC and Seidan-Mihara Ramp is put in service.
April 5, 1998:
- Highway between Kobe-Nishi IC and Tsuna-Ichinomiya IC is put in service.

Fully-access-controlled highway
Between Kobe-Nishi IC and Tarumi JCT & IC
- Number of lanes: four (temporarily)
- Restricted speed: 100 km/hour
Between Tarumi JCT & IC and Awaji IC
- Number of lanes: six
- Restricted speed: 80 km/hour
Between Awaji IC and Seidan-Mihara IC
- Number of lanes: four (temporarily)
- Restricted speed: 100 km/hour
Between Seidan-Mihara IC and Awajishima -Minami IC
- Number of lanes: four (temporarily)
- Restricted speed: 80 km/hour
Between Awajishima-Minami IC and Naruto-Kita IC
- Number of lanes: four (temporarily)
- Restricted speed: 70 km/hour
Between Naruto-Kita IC and Naruto IC
- Number of lanes: four
- Restricted speed: 80km/hour

Kobe-Awaji-Naruto Expressway connects with Sanyo Expressway at Kobe-Nishi IC, with Kita-Kobe Line of Hanshin Expressway at Fusehata JCT & IC, with Wangan Line of Hanshin Expressway and Second Shinmei-Kita Line at Tarumi JCT & IC, and with Takamatsu Expressway at Naruto IC.


Akashi-Kaikyo Bridge (nickname: Pearl Bridge)(Completed in 1998)
Suspension bridge (Total length: 3,911 m, Center span: 1,991 m)

Ohnaruto Bridge(Completed in 1985)
Suspension bridge (Total length: 1,629 m, Center span: 876 m)

page top