(10th report) Status of Expressway following the earthquake off Miyagi Prefecture

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  • (10th report) Status of Expressway following the earthquake off Miyagi Prefecture

April 8, 2011
As of 19:00
East Nippon Expressway Co., Ltd.
Tohoku Regional Head Office

At NEXCO East Japan Tohoku Regional Head Office (Aoba Ward, Sendai City), due to the earthquake that occurred off Miyagi Prefecture at 23:32 on April 7, 2011, the lines and sections that had great shaking were blocked and an emergency Inspections are carried out, and the road closures are released in sequence from the section where the emergency restoration of the damaged part is completed.

1 Section where suspension of traffic has been lifted

Road name section By vertical line Remarks
Tohoku Expressway Furukawa IC-Hiraizumi Maesawa IC Up and down Cancellation of traffic closure at 19:00 on April 8

2 closed sections

Road name section By vertical line Remarks
Tohoku Expressway Hiraizumi Maesawa IC-Misawa IC Up and down  
Sendai-Tobu Road Sendai East IC-Sendai Kohoku IC Up and down  
Joban Expressway Iwaki Shikura IC-Joban Tomioka IC Up and down Because of the nuclear power plant evacuation area

3 Summary of major damage

Within the above-mentioned closed section, 44 major damages such as steps (maximum about 20 cm) or cracks (cracks) on the road surface that hinder traffic have been confirmed.

In addition, of these 44 locations, the embankment deformation (the embankment on the road shoulder is approximately 20 m high and long) at the embankment structure between Tohoku Expressway Hiraizumi Maesawa IC and Mizusawa IC (In-bound line). A collapse occurred over about 30m, and at the bridge between Sendai-Tobu Road Sendai East IC-Sendai Kohoku IC (upper and lower lines), the bridge girder is displaced horizontally by about 5 cm, and there is a step on the road surface at the joint. Has occurred.

Tohoku Expressway Hiraizumi Maesawa IC-Misawa IC (In-bound line) Embankment change & Sendai-Tobu Road Sendai East IC-Sendai Kohoku IC (up/down line) Image of horizontal shift and step

4 Expected completion of emergency recovery

For the Out-bound lines between the Sendai East Sendai-Tobu Road Sendai East IC-Sendai Kohoku IC and the Tohoku Expressway Hiraizumi Maesawa IC-Misawa IC, we aim to complete them as early as possible by aiming for the morning of April 9th, respectively.

In addition, the In-bound line between Hiraizumi Maesawa IC and Mizusawa IC, which was relatively damaged, is expected to require several days for emergency restoration, but we aim to complete it as soon as possible.

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