Boundary tunnel (Hiroshima)

"The boundary tunnel" is transferred to this item. Please see "a boundary tunnel" (Toyama) about the tunnel of Hokuriku Expressway in Toyama.

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A boundary tunnel (boundary tunnel) is a tunnel of Chugoku Expressway in the boundary of Akiota-cho, Yamagata-gun, Hiroshima and Hatsukaichi-shi. I am on the way to the slope (as for approximately 4% of inclines in the tunnel) with the steep grade for a long time, and a prospect is bad, and the casualty occurs in the past because it becomes the sharp curve inside (later description).

Boundary tunnel

Summary
Position	Hiroshima
The present situation	Under service
The position route name	Chugoku Expressway
The starting point	HiroshimaYamagata-gunAkiota-cho
Terminal	Hatsukaichi-shi, Hiroshima
Use
The opening to traffic	It is March 24 (1983) for 1,983 years
Possession	West Nippon Expressway Co., Ltd.
It is targeted for traffic	Car
Technical information
Full length	(up line) 459m (the down line) 454m
The number of road traffic lanes	(up line) 2 traffic lanes (the down line) 2 traffic lanes
Design speed	-- km/h (the regulation speed: - - km/h)
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Table of contents

Summary

• Up line (the Hiroshima area) length: 459m
• Down line (the Yamaguchi area) length: 454m

※The thing by mention of the mark that the number of the tunnel distance was installed in the tunnel entrance this side.

History

• It is March 24 (1983) for 1,983 years: Chugoku Expressway, Chiyoda IC - Shikano IC interval starts service with the opening to traffic.
• It is July 15 (1988) for 1,988 years: A fire accident occurs in a tunnel.
• It is October 1 (2005) for 2,005 years: With Japan Highway Public Corporation privatization, I am succeeded by West Nippon Expressway Co., Ltd.

Boundary tunnel destruction by fire accident

 

I label "careful driving for the family"

A destruction by fire accident occurred in a boundary tunnel in (1988) in 1988, and it was a catastrophe that 11 vehicles were completely demolished and started five dead people, injured person five. It is caused by the fact that a following vehicle performed a multi-car collision to the crane truck which skids, and stopped. It is installed the warning sign indicating there being a boundary tunnel a lot ahead from the process to the tunnel entrance this side of the up line, and there is a mark called "careful driving for the family" particularly at the tunnel entrance (only in the up line).

Important Notice of the two-way traffic era

When Chugoku Expressway was just inaugurated, I used it together in some sections of the Hiroshima north JCT - Shikano IC in 2 provisional traffic lanes. Because it was as for boundary tunnel in itself in two-way traffic section in the point that passed through the tunnel in the case of an up line in particular although I was able to pass it in 4 traffic lanes from an early stage of stage, a prospect was bad at all.

Gallery

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  A notice mark (up line). A thing before 1.5km.

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  A notice mark (up line). I enter the tunnel after a curve of R=600 after this to the left.

Allied item

• Chugoku Expressway
• Japanese slope tunnel (an example of the accident in the tunnel of the expressway)

Outside link

• West Nippon Expressway Co., Ltd.

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This article is taken from the Japanese Wikipedia Boundary tunnel (Hiroshima)

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