Partial drop of joint material from Tohoku Expressway Morohashi

February 12, 2013
East Nippon Expressway Co., Ltd.
Kanto Regional Head Office

NEXCO EAST Kanto Regional Head Office (Taito-ku, Tokyo) Tohoku Expressway part of the joint material (elastite) installed at the seam of the abutment at the Moro Bridge. Has fallen.

No damage such as injuries or property damage has been confirmed.

Immediately after the discovery, we performed an emergency inspection of the relevant part, completed safety confirmation, and then implemented a fall prevention measure using the net. We apologize for any inconvenience caused to our neighbors.

1 History of discovery

9:41, Monday, February 11, 2013
Residents in the vicinity witnessed the fall of joint material (elastite) while passing Kanuma City Road 0017 under Moro Bridge and reported it to the police. A police officer who received the report contacted us, and an employee of the company confirmed the location.

2 Occurrence location

Tohoku Expressway Morohashi (91.9KP) Kanuma City Road 0017 grade separation
(Open between November 30, 1972 between Kanuma Interchange and Utsunomiya Interchange)
Destination name: Tomogi Prefecture Kanuma City Moro (Tochigi Kenkanuma Moro)

3 Dropped joint material (elastite)

Maximum dimensions approx. 18 cm x 13 cm x 2.5 cm (350 g)
Total weight about 800g (*Elastite is an asphalt joint material)

4 Cause of fall

It is speculated that the joint material (elastite) was damaged and dropped due to deterioration over time.

5 Last inspection date of the location

August 2012 Detailed inspection by close visual inspection was performed and there was no abnormality in the joint material.

6 Future action

In this Regional Head Office jurisdiction, an emergency inspection will be carried out at locations where similar events could damage third parties.

[Situation photo]

Image of the fall situation of joint materials

Image of drop countermeasure implementation status (protection net installed)