Britannia Bridge

The Britannia Bridge, built by William Fairbairn and Robert Stephenson, was completed in 1850 and was an engineering first – the world’s first tubular bridge – as it used box-girders or ‘tubes’ inside which steam trains ran.


It towered 32 metres above the waters of the strait, supported by pillars of Anglesey limestone and was decorated with stone lions. The bridge was originally built for rail only, but, following a fierce fire in 1970, a road – now the A55 – was incorporated as a road deck over the railway.
What are the opening times?

No opening restrictions.
How much does it cost?

No admission charge.
Where is it and how do I get there?

OS Ref: SH7153

4km (2 m) west of Bangor on the A55 expressway.

Where can I stay?

For a warm welcome and expert help with where to stay contact one of our Tourist Information Centres at:

Llanfairpwll (01248 713177 – email: )

or Holyhead (01407 762622 – email: )

or contact the North Wales Central Reservations Hotline – open 09:00 – 18:00 weekdays; 10:00 – 17:00 Saturday; closed Sunday. Tel: 08705 168767

A wide range of accommodation can be found on the pages of our Anglesey Tourism website, all inspected and graded for quality on an annual basis. The Wales Tourist Board website also provides an excellent range of quality, graded accommodation.