The National Trust will be carrying out work on woodland bordering the A6108 west of Richmond this November and December.
The trust’s woodland contractors will be felling a number of trees on the edge of Hag Wood that have been affected by ash dieback.
Experts say the work – which will be carried out along a 500-metre stretch of the road – is essential to prevent infected ash trees from falling and creating a hazard for road users.
The National Trust said that although the felled area will be visible from the road, any disturbance to the woodland edge would recover over two to three years with replanting and the creation of better growing conditions for existing ground flora.
Hag Wood is managed by the National Trust, and permission for works to take place has been granted by the Forestry Commission in consultation with Natural England.
Peter Katic, the National Trust’s area Ranger for Upper Wharfedale in the Yorkshire Dales, said: “Hag Wood is a nationally-designated Site of Special Scientific Interest, so it’s essential that proper woodland management is carried out to protect this unique habitat.
“Any tree that has been identified for felling has been individually checked for populations of bats and other wildlife, but the relative immaturity of these trees mean that they don’t make the most suitable habitats.
“Strategic felling of individual trees will keep the highway free of hazards throughout the winter months, but also has additional benefits to boost local biodiversity.
“Opening parts of Hag Wood’s floor up to natural light will encourage a richer ground flora to develop, and we’ll also be replanting this section of woodland with a variety of lower-growing shrubby tree species such as hawthorn, blackthorn, rowan, aspen, and willow.”
No significant disruption to the A6108 is expected as a result of the works, although drivers are advised that some temporary traffic management measures may be needed at times to ensure the safety of contractors.
Works are due to be completed by mid-December.