M3 (NI)

M3 (Northern Ireland)

Lagan Bridge

Belfast to Ballymacarrett

The M3 is fairly obviously just the last mile of the M2, built in the 1990s when a new crossing over the Lagan was required. Not that anybody pays any attention to its number anyway.

Routes

What's new

Imperfectly Odd: Batheaston Bypass

It has viaducts, a tunnel and plenty of controversy, but the amazing Batheaston Bypass doesn’t really work. What went wrong?

South London's lost motorways

Completing the story of London's epic Ringways, we've just published the Southern Radials, five more motorways that never saw the light of day.

To the north east!

Two new additions to our collection of Opening Booklets take us to Darlington and Middlesbrough.

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Have you seen...

Three Generations of the A82

Three roads were built in the space of 200 years, all trying to tame Rannoch Moor and Glen Coe. This is the impressive tale of one of Scotland's most memorable routes.