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Treetop walkway, Westonbirt, United Kingdom

Thursday 28 Apr 2016
 

Glenn Howells takes to the tree tops

 
Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom
Glenn Howells Architects 
 
Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom Treetop walkway by Glenn Howells Architects in Westonbirt, United Kingdom
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A new Treetop Walkway in the UK uses the topography of the land, after £1.9m was raised for its construction 

The longest treetop walkway in the UK has opened to the public in the National Arboretum at Westonbirt, designed by Glenn Howells Architects with engineers Buro Happold. The STIHL Treetop Walkway starts and finishes on ground level using the topography of the land, rising 13m as it follows the valley floor. It seamlessly integrates itself into its environment thanks to a sensitive approach to design and selection of materials.

The sinuous elevated 300m route meanders through the arboretum, offering the chance to get up close with trees and the canopy, as well as glorious views across the historic downs landscape. At four key points, the walkway ‘bulges’ out to form hotspots where visitors can engage with their natural surroundings, and a ‘crows rises up over the walkway, wrapping around a 36m tall black pine tree, and offering the chance for people to stop and take in the views.

The walkway has been created by using advanced computational parametric principles and uses materials the complement the surroundings. The distance of any point of legs is the same (10.5m) - allowing for a visual continuous flow and foundations are carefully located to avoid impact on existing trees. The steel balustrade is strong and light, minimising the amount of structure required and reducing the impact on the surroundings, with timber legs chosen as they will age naturally over time.

The world-renowned Westonbirt Arboretum was laid out by three generations of the Holford family from the early 1800s, and has been recognised by English Heritage as a Grade I registered landscape and garden of special historic interest. The Friends of Westonbirt raised £1.9m so that the walkway could provide visitors with a better understanding of the Arboretum and its landscape, containing the ancient woodlands of Silk Wood and the Downs. In 2014, Glenn Howells Architects also completed the Biffa Award Welcome Building, a curved, timber-clad centre that serves as an entrance to visitors of the arboretum.

Architect Glenn Howells said: “We are very proud to have designed this unique treetop walkway for the historic and internationally renowned arboretum at Westonbirt. The walkway allows all visitors, regardless of age or ability, to experience the site from the treetops for the first time. Focusing on visitor needs and materiality, the walkway is designed to disappear as a sinuous silver ribbon that meanders between trees and canopies. The aim is that this new feature will greatly enhance visitor experience and help to ensure Westonbirt's popularity for many years to come.”

Andrew Smith, Arboretum Director said: “People have been enjoying the views of Westonbirt from the ground for generations, so the time has come to offer our visitors a new and exciting way to see the arboretum by getting up close and personal with the canopy, just like our tree team! It also provides a family friendly and fun way for visitors to engage with the world of trees. The STIHL Treetop Walkway is the start of an exciting new chapter in Westonbirt’s history and can be enjoyed as the seasons change throughout the year. We’re incredibly proud of it and would like to thank all the Trusts, Foundations, companies and individual donors who have given their time and money to make this rms the visitor experience with incredible views, which have never been seen before project a reality.”

Since 1956 Westonbirt Arboretum has been developed and maintained by the Forestry Commission, covering 240 has, 3,000 taxa (species/distinct varieties), over 15,000 specimens, including 120 UK champion trees, 73 red data species and a number of national collections.

The new STIHL Treetop Walkway will be open to the public from Wednesday 27 April. It’s a highly anticipated addition to the site and it is expected that weekends will be particularly busy. Access will be included within the admission to the arboretum. For more information, please visit www.forestry.gov.uk/westonbirt.

Nick Myall

News Editor

Key Facts

Client National Arboretum at Westonbirt
Status Completed
Value £1.9 million(m€)
Glenn Howells Architects
www.glennhowells.co.uk

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