Falling of concrete fragments from Kawakai viaduct on Daisan-Keihin Road

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  • Falling of concrete fragments from Kawakai viaduct on Daisan-Keihin Road

May 17, 2010
East Nippon Expressway Co., Ltd.
Kanto Regional Head Office

NEXCO EAST Kanto Regional Head Office (Taito-ku, Tokyo) manages Daisan-Keihin Road, a major local road that crosses Daisan-Keihin Road Kawamukai on the sidewalk of the Shin-Yokohama Motoishikawa line. A piece of concrete was found falling from the bottom edge of the viaduct floor slab.

No accidents such as injuries or property damage have been confirmed.

We take this situation seriously, carry out emergency inspections, and implement measures to ensure safety.

1 Date and time of report

Sunday, May 16, 2010 8:30 am
The general public reported the number 110, saying "concrete is falling on the sidewalk," which our employees confirmed locally.

2 Occurrence location

Daisan-Keihin Road Kawamaya Viaduct (Opening date: December 19, 1965)
(Near Kohoku interchange)
Address: Kawamukai-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa

3 Falling concrete pieces

Maximum about 20 cm x about 15 cm x about 10 cm
Total weight including other fragments About 10kg

4 Cause of fall

Currently under investigation

5 Last inspection date of the location

Detailed inspection September 2008 No abnormality

6 Future action

An urgent inspection of the relevant part was completed yesterday (16th).

[Situation photo]
Situation photo: Concrete piece falling situation, concrete peeling point, concrete piece 20 cm × 15 cm × 10 cm Image image of total weight about 10 kg