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stephen_glast Friday at 12:42 PM2 repliesview on HN

As badly as HS2 has been run, apart from the tunnel length (where HS2 has not too much more than this project) these projects are night and day different. Not just that HS2 Phase 1a/1b is almost double the length and significantly higher design speed (360km/h vs 250km/h), but they are in a different league in terms of civil engineering from the info I can see - this seems to have less than 80 structures (overpasses, bridges, underpasses etc.) whereas HS2 has 175 bridges and 52 viaducts, and some of those are massive (including the longest railway viaduct in the UK).


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iso1631last Friday at 2:13 PM

HS2 also includes major stations - a 6 platform one almost entirely underground in west london, a multi-platform extension in central london, a new station in central birmingham, a new 4 platform outside of Birmingham

cjrplast Friday at 12:47 PM

> this seems to have less than 80 structures (overpasses, bridges, underpasses etc.) whereas HS2 has 175 bridges and 52 viaducts.

Doesn't tunnel beat any of those structures in terms of cost/complexity?

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