Daring footbridge design needed specialist geotechnical support

3 October 2019
The new £4m competition-winning, cliff-top footbridge at Tintagel Castle is open. Ramboll’s Ground Engineering team undertook geotechnical investigations which informed the structural foundation designs.
The foundations of the Tintagel footbridge are anchored pads drilled into the fractured rock of steep cliffs. Image: Peter Curran, Ramboll

The foundations of the Tintagel footbridge are anchored pads drilled into the fractured rock of steep cliffs. Image: Peter Curran, Ramboll

Contact

Ian Lewis. Ramboll

Ian Lewis

Principal Geotechnical Engineer
T: +44 7436 583 538
Ramboll. Andy Rose.

Andy Rose

Project Director, Ground Engineering
M: +44 7436 794 615

Visitors used to climb up and down hundreds of steps and across a wooden bridge to access this iconic site on a steep cliff section of the North Cornwall coast, where, legend says, King Arthur was conceived. However, site guardians, English Heritage wanted a more accessible bridge to accommodate growing visitor numbers and relieve congestion in the peak season.

The new £4m, 72m footbridge spans high above the original wooden structure and will provide practically step-free access to and from the castle.

Ramboll was first involved at Tintagel in 2000, carrying out a stability review of the cliff faces which detailed risks associated with the site’s development. Engineering geology and geotechnical specialists from our Ground Engineering South team completed a further study in 2013, which recommended geotechnical investigation works required for potential bridge solutions.

The international competition winners, Belgian structural engineers Ney & Partners and architects William Matthews Associates, beat 136 other entries with their distinctive design. They were aware of Ramboll’s work and this quickly led to our appointment to design the foundations.

The foundations are anchored pads drilled into the fractured rock of steep cliffs. During site investigations, access to both the mainland and island sites was only possible on foot, so a helicopter was needed to lift plant and equipment into place for rotary borehole drilling and rock face mapping.

Andy Rose, Ramboll’s Project Director Ground Engineering South, said: “This was a great scheme for Ramboll to be associated with as the dramatic ruins of Tintagel Castle and the legends that surround them are so well known both here and abroad.”

Further details

Tintagel castle, UK. The 72m footbridge spans high above the original wooden structure to provide practically step-free access to and from the castle. Image: Peter Curran, Ramboll

Tintagel clifftop footbridge – Foundations

Spanning across a steep cliff section of the North Cornwall coast, a new footbridge at Tintagel will open up exhilarating views of Tintagel Island, coastline and Atlantic seascape. Ramboll ground engineering team are designers for the foundations of the structure that will transform the visitor experience at the historic Tintagel Castle site.

Ramboll

Ramboll
240 Blackfriars Road
London SE1 8NW
United Kingdom
Tel:+44 20 7631 5291
Fax:+44 845 299 1610

Mail: london@ramboll.co.uk

Company registration

Company registration

Ramboll UK Limited. Registered in England & Wales. Company registration no. 03659970. Registered office: 240 Blackfriars Road, London SE1 8NW


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