About falling of concrete fragments from the bridge abutment on the national highway 234 bridge of the Do-O Expressway
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- About falling of concrete fragments from the bridge abutment on the national highway 234 bridge of the Do-O Expressway
April 8, 2008
East Nippon Expressway Co., Ltd.
Hokkaido Regional Head Office
NEXCO EAST Hokkaido Regional Head Office (Sapporo Atsubetsu-ku, Regional Head Office length Kubotera Katsuji) manages Do-O Expressway and, at the point that the general national highway 234 No. intersect (234 Nos Bridge National Highway), and falling concrete piece of the abutment part, bridges Found on the sidewalk below. There were no injuries or sidewalk damage due to this.
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, April 7th, 8:48 Our company's Iwamizawa management office was informed that concrete pieces had fallen, and our employees confirmed the location. As a result, concrete pieces were found around 9:15. I confirmed it was falling.
At that time, we have already taken emergency measures to knock off parts that may be dropped.
2 Occurrence location
Do-O Expressway National Highway No. 234 Bridge (Out-bound line) (Opening date: November 9, 1983)
Between Ebetsu East Interchange and Iwamizawa Interchange
Minamimachi, Iwamizawa City, Article 9, 3-chome
3 Falling objects
Concrete piece (1)・・・10cm×17cm×15cm (maximum) Weight 6.1kg
Concrete piece (2)・・・5cm×20cm×12cm (maximum) Weight 1.7kg
4 Cause of fall
We are currently investigating the cause of the drop.
5 Inspection history of the relevant part
Detailed inspection September 2006 No abnormality
Periodic inspection May 2007 No abnormality
Emergency inspection December 2007 No abnormality
6 Future action
Immediately after the discovery, an emergency inspection was carried out at this location and emergency measures were implemented.
Emergency inspections will also be performed at locations where other third party damage is expected.
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