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Perhaps EM Could Sponsor This With His "Pay Rise"!

A Russia-USA railway-tunnel under the Bering Strait, that is.

Yes, this old chestnut, either tunnel or bridges, first proposed back in the early 1900s, resurfaces now and then. Bridges, plural, because they would presumably use two mid-Strait islands.

I was alerted to this by a brief item in the latest edition of geology magazine Down To Earth, which had been tipped off by a reader sending a Press cutting.


Why my headline? After one of Presidents Putin's & Trump's telephone chats, Karil Dmitri, the head of Russia's sovereign wealth fund, suggested reviving the plan to Elon Musk. I can't see he could done so without Mr. Putin's approval or even instruction.


Twenty minutes' browsing revealed history and analysis, but only one website, that of a group called "Interbering", considered the little matter of the geology, and then only by a very simplified section. And as DtE editor Chris Darmon commented but the Interbering diagram omits, the tunnel would cross a continental plate boundary....

While building some thousands of miles of connecting railways and roads in both nations, across very remote, frigid, seismically-active regions topped by permafrost that climate-change could thaw, may cost even more than Dmitri's projected $8 Bn apparently only for the tunnel itself.

The railway would be electrically-powered of course; adding to the building and maintenance expense including Amtrak having to electrify its main lines, or at least those serving the tunnel.


The proponents also ignore another little matter in their enthusiasm for a complete USA - Russia -China - Europe railway line. Track gauge!

The USA's, Canada's and most of Europe's railways are to Standard Gauge: 4' 8½" (1435mm).

Finland, Russia and China use the Russian, 5' gauge (rounded to 1520mm).

It is that gauge commonality, as well as relatively simple, stable geology and ease of physical access - oh, and fairly simple, stable international politics - that allowed the Channel Tunnel (railway) to succeed. That is only about 25 miles long, as well, whereas the Bering Strait crossing, in a very remote, seismically active, Arctic area, would be around 75-80 miles long.

I think the loading gauges (rolling-stock maximum height and width) differ too.


Well, it would excite The Three Narcissists no doubt, but be practical technically? Not really. Financially? One analysis I read predicts a huge loss because the US / Russian trade was already small even before the present war, and it would be unlikely to compete with general international shipping sufficiently to recoup the enormous building costs likely to increase as time goes on. I think the main trade would be USA / China.


I did not find Mr. Trump's views on it - perhaps he'd call it "great" and "big" and "beautiful".

Perchance to dream....

.....

Some years ago, then-PM Boris Johnson suggested, or was taken by someone else's suggestion, a bridge from Northern Ireland to Scotland, across the narrowest part of the Irish Sea. This is the same Johnson who suggested a huge artificial island in the Thames Estuary, for an airport.

Don't politicians ever learn basic science including physical geography, let alone even lay-level engineering?
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ArishMell · 70-79, M
@ninalanyon I agree but have no idea how Mr. Dmitri came up with that figure.

The other web-sites I saw do show much greater costs, partly because the whole project would require far more than just the tunnel itself.

It is though noticeable that none of the proposals saw any geological problems, only the financial and political ones.

The nearest to addressing them is in Interbering's very simplified geological section, with exaggerated vertical scale making interpretation difficult. The same publicity also suggests the removed rock, being basalt (?), could be used as ballast for the railways on the land each side. Their own diagram shows much of the rock is sedimentary not igneous, so of little value as railway ballast; and so the amount of potential ballast rock excavated would be enough only for a fairly short portion of considerable distance of new railway in both countries.

It avoids totally the point made in Down to Earth that the tunnel would pass through the boundary between two continental crustal plates. Not the safest place to dig through!

HippyJoe has spotted the earthquake hazard, too - this is nearly on his home patch.

(The Channel Tunnel is almost entirely in a deep bed of a soft but stiff, clay-like material called the Chalk Marl, lying along with the other rocks below it, on the very stable NW European Continental Plate that extends well beyond NW Scotland. It was easy to cut, sufficiently self-supporting over short lengths to facilitate lining the tunnel, and dry. )

...

Another of these dream-sites holds a very nice painting of how the Alaskan portal area might look, with a passenger train about to enter, a goods train doing so and another goods train emerging.

The view is supposedly from a hill only a couple of hundred feet above the line, little higher above the water, with the islands and the far coast indicated by annotated outlines.

Errr... The Bering Strait is about 70 miles wide, roughly the distance from the Dorset coast to France opposite. Either coast, and possibly the islands, would be over the horizon from the other. Also the portal is too close to the sea. It would have to be a few miles inland - as I think Interbering does explain. (Another site's painting shows the portal practically on the beach!)

It's the sort of picture made to impress politicians and money types who understand nowt but politics and money.... and those only possibly.


It's details like those, and the ignoring of basic, obvious and awkard technical questions, that make such web-sites just unbelievable.

......

Nor do they mention the obvious engineering matter of the break-of-gauge if trains are supposed to run through to any part of the USA much beyond the Alaskan tunnel portal, or to Western Europe except Finland. That raised its head publicly early in Russia's war in Ukraine, over how to export Ukrainian grain partly by train instead of directly by ship.

......

Oh - and who would pay? Well, obviously not Musk himself!

The Kremlin chap says Russia and un-named "international partners". (Most likely China and perhaps India, I suggest. Possibly Hungary, at least if still under Viktor Orban's presidency?)