WESTONBIRT ARBORETUM OPENS THE UK’S LONGEST TREETOP WALKWAY

WESTONBIRT ARBORETUM OPENS THE UK’S LONGEST TREETOP WALKWAY

Glenn Howells Architects : The longest treetop walkway in the UK has opened to the public in the National Arboretum at Westonbirt today 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 13 metres as it follows the valley floor. It seamlessly integrates itself into its environment thanks to a sensitive approach to design and selection of materials.

Westonbirt Arboretum opens the UK’s longest treetop walkway

The sinuous elevated 300-metre 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 36-metre tall black pine tree, and offering the chance for people to stop and take in the views.

Westonbirt Arboretum opens the UK’s longest treetop walkway

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 (10.5 meters) – allowing for a visual continuous flow and foundations are carefully located to avoid impact on existing trees. The steel balustrade is strong and light, minimizing the amount of structure required and reducing the impact on the surroundings, with timber legs chosen as they will age naturally over time.

Westonbirt Arboretum opens the UK’s longest treetop walkway

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.

Westonbirt Arboretum opens the UK’s longest treetop walkway

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.”

Westonbirt Arboretum opens the UK’s longest treetop walkway

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! This landmark addition transforms the visitor experience with incredible views, which have never been seen before. 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 project a reality.”

Westonbirt Arboretum opens the UK’s longest treetop walkway

Since 1956 Westonbirt Arboretum has been developed and maintained by the Forestry Commission, covering 240 hectares, 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.

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