Rewilding a Rare Landscape Through the Removal of a Historic Road

While the opening of the Hindhead Tunnel in 2011 was initially celebrated for resolving one of the A3’s most notorious traffic congestion points, its most profound impact has been ecological. By routing the highway beneath the terrain rather than cutting through it, the infrastructure project catalyzed a major rewilding initiative in southern England.

The former surface route of the A3 had bisected Hindhead Common and the Devil’s Punch Bowl, a Site of Special Scientific Interest (SSSI). This area represents one of the largest remaining tracts of lowland heath in the South East. With the tunnel’s completion, the old road segment was permanently closed and dismantled, allowing the National Trust—backed by a long-term Countryside Stewardship agreement—to restore the land. Staff and volunteers rebuilt natural landforms, reintroduced indigenous plant species, and reconnected habitats that had been isolated for decades.

These efforts have yielded immediate biological benefits. Protected birds, including the nightjar and woodlark, have begun breeding successfully on the rehabilitated heath. Matt Cusack, a ranger with the National Trust, highlighted the rapid return of wildlife: “The tunnel opened in July 2011, and in August 2011 we heard our first nightjars cheery in the Punchbowl.” He noted the significance of this event, stating, “They have never been recorded nesting in this end of the Punchbowl.”

Beyond biodiversity, the removal of the road significantly enhanced local air quality. Prior to the tunnel’s opening, Hindhead village was classified as an Air Quality Management Area because of elevated nitrogen dioxide concentrations caused by stationary traffic. Pollution levels dropped beneath legal thresholds within two years of the tunnel becoming operational, leading to the removal of the special designation in 2015.

The elimination of the road barrier has also restored natural wildlife corridors, allowing animals to roam without obstruction. Reflecting on the transformation, Cusack remarked, “That's the wonder of this. They took away that road noise, and the wildlife came back.”

Source: BBC News Generated at: 2026-05-31 06:01:40 UTC