Tohoku Expressway Ezuriko Bridge About falling metal piece from sound insulation wall
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- Tohoku Expressway Ezuriko Bridge About falling metal piece from sound insulation wall
June 3, 2008
East Nippon Expressway Co., Ltd.
Tohoku Regional Head Office
NEXCO EAST Tohoku Regional Head Office (Sendai Aoba-ku, Regional Head Office length: Mikio Kashima) managed by Tohoku Expressway and, where the general national highway 107 No. intersect: (Ezuriko Bridge In-bound in line), a metal piece from the installed sound insulation wall panel dropped, it was discovered on the sidewalk under the bridge. This by and injured, there was no damage to the sidewalk.
In response to the occurrence of this event, our company will urgently inspect the places where there is a possibility of damage to a third party and take measures to ensure safety.
1 Date and time of report
Monday, June 2 at 12:10 Our Kitakami Management Office was contacted by a person who was passing the sidewalk of National Route 107, saying that a piece of metal had fallen, and our employees were on site. As a result of the confirmation, at about 12:20 on the same day, it was confirmed that the metal pieces of the sound insulation wall panel had fallen and were collected.
After that, from 16:30 on the same day, emergency measures for knocking off the part where there is a risk of falling have been implemented.
2 Occurrence location
Tohoku Expressway Ezuri Bridge (In-bound line) (Opening date: November 29, 1977)
(Between Kitakami Kanegasaki Interchange and Kitakami Etsuko Interchange)
Iwate Prefecture Kitakami City
3 Falling objects
Metal piece・・・4cm×7cm×56cm (L type plate) Weight 0.4kg 1 piece
4 Cause of fall
Due to the corrosion of the thin steel plates that form the panel
5 Inspection history of the relevant part
Detailed inspection December 2004 Confirmation of rusting status and follow-up observation
Visual inspection July 2007 Confirmation of rusting status, follow-up observation
Visual inspection April 2008 Confirmation of rusting status, follow-up observation
6 Future action
We carried out an emergency inspection of the entire sound insulation wall of the Ezuri Bridge (upper and lower lines), and implemented emergency measures for the parts that could fall.
Emergency inspections will also be conducted at similar locations within the Tohoku Regional Head Office Head Office.
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