About falling concrete piece of Takase Bridge on Hokuriku Expressway

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  • About falling concrete piece of Takase Bridge on Hokuriku Expressway

December 11, 2007
East Nippon Expressway Co., Ltd.
Niigata Regional Head Office

NEXCO EAST Niigata Regional Head Office (Nishigata City, Nishi-ku, Regional Head Office length: Yoshio Shiraishi) Hokuriku Expressway Takasebashi Prefectural road crossing Takasebashi, Takasebashi floor Four concrete pieces were found to have fallen from the printing seams.

Although no accidents such as personal injury or property damage have occurred due to this, we will take this situation seriously, conduct an emergency inspection, and implement measures to ensure safety.

1 Date and time of report

Tuesday, December 11, 2007 around 5:38 am
NEXCO EAST Customer Center received a report from an anonymous person and confirmed the falling concrete pieces on-site.

2 Occurrence location

Hokuriku Expressway Takase Bridge
Between Nagaoka Junction and Nakanoshima Mitsuke Interchange
2492-5 Hirashima, Obanban-cho, Nagaoka-shi Prefectural road Nagaoka/Nanakaichi line intersection

3 Damage situation

No injury or property damage

4 Overview

Concrete pieces on the steel bridge deck fell off and fell

  • A total of 4 concrete pieces were found (total weight about 6 kg)
    (Maximum piece 30 cm × 25 cm × 3.5 cm Weight about 3.2 kg)

5 Cause of fall

We are currently investigating the cause of the fall

6 Hokuriku Expressway

Nagaoka Junction-Nakanoshima Mitsuke Interchange

  • In-service date September 21, 1978

7 Inspection history of the location

Nagaoka Junction-Nakanoshima Mitsuke Interchange

  • Inspected in July 2007. We haven't discovered any abnormalities.

8 Future action

An emergency tapping inspection is underway at the location

  • Scheduled to inspect similar areas within the Niigata Regional Head Office

・Reference materials

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