M6 Jct 21A

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nearM65
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M6 Jct 21A

Post by nearM65 »

could someone tell me why croft jct 21A is not just jct 21 as its not an add on junction after the M6 was built. Many thanks.
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c2R
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Re: M6 Jct 21A

Post by c2R »

What do you mean "not an add on junction"? The M6 here was opened in July 1963; the M62 to the west was opened in November 1973 and to the east in April 1974.
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Steven
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Re: M6 Jct 21A

Post by Steven »

nearM65 wrote: Thu Jan 20, 2022 05:16 could someone tell me why croft jct 21A is not just jct 21 as its not an add on junction after the M6 was built. Many thanks.
Because J21 is the A57 junction, built at the same time as the M6 and J21A opened ten years later with the M62?

There's plenty of different maps on SABRE Maps that show that particular time period.
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mikehindsonevans
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Re: M6 Jct 21A

Post by mikehindsonevans »

Steven wrote: Thu Jan 20, 2022 07:51
nearM65 wrote: Thu Jan 20, 2022 05:16 could someone tell me why croft jct 21A is not just jct 21 as its not an add on junction after the M6 was built. Many thanks.
Because J21 is the A57 junction, built at the same time as the M6 and J21A opened ten years later with the M62?

There's plenty of different maps on SABRE Maps that show that particular time period.
Wow, I remember the construction starting on 21A.
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fras
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Re: M6 Jct 21A

Post by fras »

This junction occupies huge area and is a real "plate of spaghetti". Just look at the link between M62 westbound to M6 northbound. I think it's all free-flow at 70mph, if I'm not mistaken. A rarety in this day and age.
Peter Freeman
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Re: M6 Jct 21A

Post by Peter Freeman »

I wouldn't call J21A a "plate of spaghetti". I'd reserve that term for complex hybrid or non-standard designs. For example, M6J6, the original 'Spaghetti Junction'.

J21A is a standard 'clover-stack'. The type is not rare, globally (three in the UK?). I think it's one of the better interchanges on the motorway network. It is perhaps slightly over-sized.
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