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(8th report)
About the situation of the Expressway with the earthquake centering on the Hamadori district in Fukushima Prefecture

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  • (8th report) About the condition of the Expressway accompanying the earthquake with the epicenter of Fukushima Prefecture Hamadori district
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April 12, 2011
As of 16:45
East Nippon Expressway Co., Ltd.
Tohoku Regional Head Office

At NEXCO East Japan Tohoku Regional Head Office (Aoba Ward, Sendai City), earthquakes occurred at 17:16 on April 11, 2011 and at 14:07 on April 12, 2011, with the epicenter in the Hamadori region of Fukushima Prefecture. In response to this, we closed the lines and sections where there was a lot of shaking, carried out an emergency inspection, and released the road closures sequentially from the sections where safety was confirmed.

1. Section where suspension of traffic has been released

Road name section By vertical line Remarks
Ban-Etsu Expressway Iwaki Sanwa IC-Ono IC Up and down 16:45 Cancellation of suspension of traffic

2. Closed section (Tohoku Regional Head Office Office)

Road name section By vertical line Remarks
Ban-Etsu Expressway Iwaki JCT-Iwaki Sanwa IC Up and down  
Joban Expressway Iwaki Nakoso IC-Iwaki Shikura IC Up and down  
Joban Expressway Iwaki Shikura IC-Joban Tomioka IC Up and down Because of the evacuation area of the nuclear power plant, traffic will be closed from March 11.
  • The latest information is DraTra, Information including general national highways JARTIC Please check with.

3. Major damages currently confirmed (Tohoku Regional Head Office Office)

Road name section By vertical line Damage situation
Joban Expressway Iwaki Nakoso IC-Iwaki Yumoto IC Up and down Out-bound slope cut slope reaches In-bound line

4. Current work status

The collapsed rock mass is being split into small pieces and is being carried out.

[Location map, etc.]

Image image of position map 1
Image 2 of location map
Image image of position map 3

[Collapse situation photo]

Photograph of the situation where the collapsed rock block covers the entire Out-bound line

The situation where the collapsed rock block covers the entire Out-bound line
(From the In-bound line, take Iwaki Yumoto behind and head towards Iwaki Nakoso in the early morning of April 12)
[Approximate collapse]
Extension: (Road direction): About 50m
Width: (road sideways): About 15m
Road deposit height: About 8m
Height of slope collapse: approx. 35 m

Photograph of the situation where the collapsed rock block covers the entire Out-bound line

The situation where the collapsed rock block covers the entire Out-bound line
(From the Out-bound line, take Iwaki Yumoto behind and head towards Iwaki Nakoso in the early morning of April 12)

[Work status photo]

Photograph of the unloading work situation in which rock blocks are successively broken into pieces from the bottom end

Carrying out work situation from the bottom end of the rock in sequence (from the In-bound line,
Iwaki Yumoto behind and headed towards Iwaki Nakoso at around 8:30 on April 12

【Document】NEXCO EAST /Tohoku Regional Head Office Expressway etc. [PDF: 154KB]

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