Diamond cut Diamond--Ultra-Vival

Rei Morishita from Japan: Environmentalist, poet, essayist. Everything, various things will be taken up. Originally, it was a blog about disasters, and expanded to say romance, for example, is a kind of disaster because it is a problem of one’s survival.

Deep inside the Tokyo Bay Aqua-Line: Domestic demand and the shadow of the United States

Deep inside the Tokyo Bay Aqua-Line: Domestic demand and the shadow of the United States

I am currently reading "The Men Who Connected Tokyo Bay" (Nikkei BP: 1997 First Edition). This book depicts the struggles of engineers until the completion of this huge road, reminiscent of the various projects previously broadcast on NHK's "Project X" (maybe it was actually on air. I don't know), I'm not really interested in various technical problems such as the fact that the spring water interfered with the construction and the difficulty of adopting the shield method. Well, I think that such a story should be read by civil engineers / the manias of civil engineering.


umi hotaru (sea firefly) PA: (wiki)

However, the only thing I paid attention to in the description of this book was that I was interested in how the decision was made, such as the idea of construction, the announcement of the plan, the stray, the decision of construction, etc. I paid the most attention to the chronological table, "Major movements to completion."

Actually, at this time, I would like to superimpose the data on my past log "3 routes" (Honshu-Shikoku Bridge) and the data from this chronological table. Here, the facts of this three bridges are displayed as @, and the facts of Tokyo Bay Aqua-Line are displayed as @@.


(In Japanese)

@ 1889 Proposed

@ 1959-1961 Go up to 5 route candidates

@@ 1966 survey

@ 1970 Kakuei Tanaka promised to make 3 routes

@ 1974 Postponed due to oil crisis

@ 1985 Determined by construction of 3 routes

@@ 1985 Commercialization is approved

@ 1988 Completed Kojima / Sakaide route

@@ 1997 Aqualine completed

@ 1998 Kobe / Naruto route completed

@ 1999 Onomichi / Imabari route completed

(The opening of the Kobe / Naruto route and the Onomichi / Imabari route followed the description on wikipedia.)


Map of 3routes(wiki)

Almost both huge works are approved, constructed, and completed at the same time. Please note that @ and @@ are in the same year in 1985. This year is a year in which an important promise was made between Japan and the United States. In order to eliminate the trade surplus of Japanese automobiles and the trade deficit from the perspective of the United States, the Japanese government received an "order" from the US Trade Representative to "expand domestic demand", and several large civil engineering works ... We will start construction of 3 routes of 4 bridges. Actually, We only needed the Kojima / Sakaide route. This was a foolish act of subservient construction under the guise of the United States. It seems that this is reflected in the current tightness of national finance.

Then, when I looked at whether there was something in common between the three bridges and the Aqua-Line, it was the same year that the three routes were approved by the external pressure of the United States ... The Aqua-Line in 1985. Was also licensed.

This pressure to expand domestic demand can also be seen in the "Plaza Accord" agreed between developed countries under the Nakasone administration in 1985. The yen was sharply revalued, which was too strong, leading to a stronger yen and a weaker dollar, which slowed Japan's exports and forced us to look at domestic demand even if we didn't like it. The administration at that time, which easily accepted this agreement, was completely unaware of the toxicity of this promise, leaving behind various stigma in Japan's future. Stupid administration ... One of the roots of this is the bubble economy and its collapse, and the subsequent "lost 30 years" are good examples.

A word of the day: The Japanese government has been weak in the United States since Shigeru Yoshida, and as my blog friend, id: SPYBOY often says, I hope Japan will become the 51st state of the United States. ..

3 routes

89.0km. 9.4km. 59.4km. What number do you think this is? --The answer is the total extension of the "Kobe / Naruto route", "Kojima / Sakaide route", and "Onomichi / Imabari route" of the Honshu Bridge (Honshu-Shikoku connecting bridge) (from Wikipedia).

The "Kojima / Sakaide route" is outstandingly short, and the other two are too long. In the history of construction of the three bridges, why was the three routes constructed even though they were once unified into the "Kojima / Sakaide route"? We will follow the history of construction.

The bridge connecting Honshu and Shikoku was invented quite early, and in 1889, Kagawa Prefectural Assembly's Akira Okubo proposed it. However, before and after the Pacific War, it was not constructed because it "interferes with the navigation of ships." The turning point was the "Shiun Maru accident" that occurred in the Seto Inland Sea in 1955. In the previous year, a catastrophe of 1155 people died on the Seikan Ferry Toya Maru, and the bridge plan emerged in the wake of this marine accident that recorded 186 people dead. From 1959 (Showa 34) to 1961, all 5 routes will be considered.

Around this time, petition battles in related prefectures (Hyogo, Tokushima, Okayama, Kagawa, Hiroshima, Ehime, etc.) are booming. To put it badly, it is a regional ego, but I do not feel like blaming the local government at that time, who thought that the construction of bridges would contribute to regional development. In 1970, the secretary general of the Liberal Democratic Party, Kakuei Tanaka, decided to "make all three routes" and the four public corporations were established. However, due to the oil crisis in 1974, the wind direction changed and the start of construction was postponed. After that, the line will change to make only the "Kojima / Sakaide route".

However, at the time of the Cabinet of Yasuhiro Nakasone in 1985, the pressure of the United States to manage the trade deficit forced Japan to expand domestic demand and decided to create three routes. (This external pressure information is


From Masateru Shirakawa, who asks about the privatization of the road public corporation. )

The "Kojima / Sakaide route" will open in 1988, the "Kobe / Naruto route" in 1998 (2000), and the "Onomichi / Imabari route" in 1999 (2001). You can see that it was a national project that was directly touched by big politicians such as Kakuei Tanaka and Yasuhiro Nakasone. The age is from "30 Year History of the Four Public Corporations".

Even so, it is interesting that the external pressure from the United States, which has become the trump card for the construction of the three routes that are currently in the big deficit, suggests the current state of Japan. For the bridge connecting Honshu and Shikoku, it seems that one "Kojima / Sakai route" is sufficient in terms of cost performance. In that sense, it should have been good in the direction of 1973. Twice.

And what was left was a toll that was several times higher than a normal highway. Even if the four public corporations are privatized, this high burden will not be resolved, and eventually the finances of the region and the economic life of the Japanese people will be squeezed. It seems that the responsibility of the government, which made three routes at the mercy of the United States, is heavy. Perhaps they are trying to cheat by non-essential means called privatization.

A word of the day: I don't think that "if you can do logistics quickly" is all right. I am against any further construction of the highway.

Updated once a week on Wednesday or Thursday.

In Japanese, original











@1889年 提起
@1959年−1961年 5ルート候補に上がる
@@1966年 調査
@1970年 田中角栄 3ルート作ることを確約
@1974年 オイルショックで延期
@1985年 3ルート建設で決定
@@1985年 事業化が認められる
@1988年 児島・坂出ルート完成
@@1997年 アクアライン完成
@1998年 神戸・鳴門ルート完成
@1999年 尾道今治ルート完成













 道路公団民営化を問う  白川正照  より。)




タグ  内需 公共事業 橋 トンネル 民営化

The major civil engineering projects, Honshu Bridge and Tokyo Bay Aqua-Line, have a lot in common. It was the go-ahead of construction in 1985. It is coded that the United States has issued an order to expand domestic demand to Japan because it wants to protect the dollar.