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Friday, September 11, 2009

Enjoy the Menai Straits Bridge to Anglesey, Innovative Design by Thomas Telford

Posted by patrick

By David Phillips

The iconic Menai Straits Bridge which carries the A5 across to Anglesey was the inspiration of renown civil engineer Thomas Telford, whose 250th year was celebrated in 2008. For its day the engineering challenge facing Telford and his team was significant, and needed a bold and innovative design to reach across what are very tidal waters between island and mainland. If you come to North Wales this Menai Suspension Bridge is a key attraction to experience for all.

A step back in time suggests that Menai Bridge may have been a small Roman settlement and at this point of the Menai Straits there was a ferry crossing, as it is where the island and mainland are nearest. Further north monks, visiting the Augustinian Priory at Penmon a few centuries ago, would cross the Lavan sands north west of Bangor at low tide, and made for the shore at Llanfaes, north of Beaumaris.

So what events led to Telford being commissioned with the task of constructing such this impressive Menai Straits Bridge, an innovative example of civil engineering for the early nineteenth century? Following the Act of Union between Britain and Ireland in 1800 pressure grew for a far more efficient transport link between London and the Irish capital, Dublin.

We only have to recall the story of the composer Handel trying to get over to Dublin from Holyhead in 1742 to realise how difficult travel was between England and Ireland. Not only was it difficult to cross the Snowdon Mountains but also the sea crossing to Anglesey and then the voyage across the Irish Sea, from Holyhead to Dublin, were big challenges.

A bridge crossing to Anglesey island was the key improvement in the London Dublin transport link, with a ferry from the port of Holyhead already in service. Building work began across the Menai Straits in 1819 after much political negotiation and pressure. The two huge towers which you see are a key feature of the bridge and they are made from limestone from the nearby island quarry. Sixteen wrought iron chain cables supported the bridge across the 175 metre gap, but they were replaced with steel cables before World War Two.

When you consider that a coach journey from London to Holyhead took around 36 hours before 1826, it shows how travel has been transformed since before the bridge was built. Following completion of the Menai Suspension Bridge the journey time was reduced to 27 hours. While a journey by car today from London to Holyhead can take around 6 to 7 hours, showing the benefits of Telford's Menai Straits Bridge, the internal combustion engine and modern motorways.

When you come to Anglesey, you will find there are some great coastal and wooded walks close by on both sides of this bridge, which are signposted and accessed easily. And from the bridge as you look northwards, you see Menai Bridge harbour below with small yachts and the Bangor University ocean research ship moored nearby in the tidal waters. Yachts can pass under the bridge even at high water, as they sail up towards Beaumaris and Puffin Island.

Standing on the bridge look to the south west and observe the powerful Menai Straits tidal waters sweep towards the road and rail crossing of Britannia Bridge, and then to the open sea after Caernarfon Castle. Off the Anglesey Coastline to the south is a small island, Ynys Gorad Goch, while on the shoreline a Statue of Admiral Nelson stands, and nearby is the former Indefatigable Sailing School. You can indulge your senses in all these experiences from the high vantage point of this enigmatic Menai Straits Bridge.

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