From
Highways Agency website
Verge & Landscape Maintenance
•Areas of grass are mown first and foremost for safety reasons e.g. if the grass is long and obscures a driver's vision or to ensure visibility of road signs.
•Cones are used to provide a safe working area for our workforce and to protect the driving public from our vehicles and equipment.
•In some urban areas the grass is mown with an amenity objective to make the area look presentable and these grasses will be cut up to 6 times a year.
•Other grassland is maintained on a cyclical basis, with biodiversity and safety in mind
•The roadside verges and soft estate beyond are a valuable haven for wildlife, and are managed to promote biodiversity, linking with adjacent habitats.
•Whilst the carriageway can be a barrier to some species, measures are continually being promoted to minimise its impact (e.g otter ramps and ledges).
•We manage this habitat to promote our native species, as part of the Agency's Biodiversity Action Plan.
An important element of the Highway Agency's commitment to promoting safety on trunk roads and motorways is to make sure that sign visibility and forward visibility for drivers is maintained and not hindered by overgrown trees or other vegetation. To this end, a number of sites around the network need vegetation clearance over winter months.
We are also working on a set of Woodland Management Programmes for the Area 1 soft estate, to make sure that woodland habitats are managed, and enhanced where appropriate, in accordance with the Highway Agency's Biodiversity Action Plan and other Agency guidance. The woodland works are carried out during winter months and strike a balance between safety, amenity, nature conservation and value for money. Best endeavours are made to liaise with occupants of nearby properties, to inform them of our works and to ensure that any inconvenience is minimised.
The Agency has recently installed an otter ledge and other locations are currently being investigated. Five dormouse populations have been monitored, including one within a central reservation, where a joint study with Natural England revealed that these mammals do breed in this confined area and that they are also able to cross the dual carriageway. There are currently nearly 400 dormouse nest boxes and 200 nest tubes installed, and these have been used by a variety of other small mammals and birds too.
Our verges also provide a suitable habitat for a wealth of invertebrate species, a variety of birds and many notable plants, including the Deptford pink (an endangered species of plant) and 6 species of orchids. It is also currently thought that a Narrow-headed ant nest on the roadside verge, along with others on adjacent land, form the last stronghold of this species in England.