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. |
| Items | Between 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) |


