National Highways begins lifting beams for green bridge that spans 8 lanes of new A417

The A417 Missing Link scheme is said to be a “landscape-led” project as it aims not only to improve transport links in the Cotswolds but also deliver a range of environmental benefits.

It includes two additional partially planted crossings allowing traffic to pass over the main road, the planting of more than 100,000 trees and over 80ha calcareous grassland to enhance biodiversity and innovative use of recycled materials. Excavated rock is processed on-site to serve as a base layer for the road, reducing waste and environmental impact.

The project also incorporates several wildlife protection measures: a dedicated bat underpass, bat boxes and “dead hedging” habitats to support local bat populations; high fencing to divert bird flight paths and prevent collisions with vehicles and the translocation of more than 2,000 reptiles and over 100 Roman snails to minimise ecological disturbance. Additionally, 7.5km of drystone walling is being constructed to preserve the traditional landscape character and promote biodiversity.

If you would like to ask your own question you just need to login, register or subscribe.

A section of the existing A417 is being repurposed as a restricted byway for walkers, cyclists, horse riders and disabled users, featuring species-rich grassland, native hedgerows and trees.

Visualisation of what the green bridge over the new A417 will look like in years to come

Green bridges, which originated in France in the 1950s and were further developed in the Netherlands, are increasingly viewed as a vital aspect of sustainable infrastructure. They enable safe wildlife crossings, help reconnect fragmented habitats, provide routes for people and pollinators, and assist in blending transport corridors into natural landscapes.

Despite their growing recognition, green bridges remain relatively rare in the UK. The Gloucestershire structure is National Highways’ fifth, following similar crossings over the A556 near Knutsford, the A21 at Scotney Castle in Sussex, the A30 in Cornwall and the M25 Wisley interchange in Surrey.

The A417 Missing Link project is expected to deliver both improved road safety and efficiency while setting new standards for environmental stewardship on England’s major roads. Work on the green bridge raises hopes for greater harmony between infrastructure development and wildlife conservation in the years to come.

National Highways project director for the A417 Missing Link Steve Foxley said: “We’re really proud of the environmental work being carried out as part of this landscape-led project, and the creation of one of the UK’s biggest environmental bridges is a fundamental part of that.

“Once completed, our bridge will be the fifth for National Highways, providing a safe crossing for various species of wildlife, as well as for walkers and horse riders.

“Along with other measures, this bridge is a testament to how we can integrate world-class environmental practices alongside vital transport improvements.

“From wildlife crossings to new habitats, we’ve taken great care to ensure that our work respects and enhances the stunning Cotswold landscape.”

Kier senior ecologist Natash James added: “A lot of care has been taken before and during construction as part of a collaborative effort across the A417 Missing link scheme.

“We have a responsibility to ensure that we are leaving a positive legacy and delivering ecological and environmental benefits.

“It’s incredible to see the beams lifted into place for what will become a valuable habitat feature for many species, whilst also just being great for the landscape and ecology of the scheme.”