What can you expect?

When tree work in the vicinity of overhead electric lines has been carried out, then typically these are some of the things you are likely to see:

Underpinning
 
This operation involves the removal of all branches on one side of the tree which grow beneath the lines or are close to the lines. Branches growing above the lines may partially overhang if there is no danger of contact when influenced by strong winds or the weight of snow and ice.

If higher branches overhang two or more conductors they may be reduced in length. All dead or dangerous branches which may fall and come into contact with the lines should also be removed.

Side pruning
 
This operation involves the removal of all branches on one side of the tree to their junctions with the main stem. In addition, all dead or dangerous branches which may fall and come into contact with the lines should be removed.
 

Pollarding

Pollarding may only be carried out on young trees for which this would be an acceptable form of management, or to previously pollarded trees.

To form a new Pollard, young trees may be pruned to achieve a desired branch framework. As a result of this pruning young shoots will sprout. The tree shall be managed on an agreed pruning cycle by removing each individual sprout to its point of origin.

Mature trees which have been regularly managed as Pollards shall have each individual branch removed to its point of origin.  

Coppicing

This operation is only suitable for trees which will produce shoots from stumps following felling. Where appropriate coppicing may be used as a means of managing trees on an agreed cycle.  

Hedge cutting

Hedges will be trimmed to remove growth which is very close to the lines giving consideration to the species involved.  

Crown reduction

This operation shall consist of a reduction in the height and spread of the crown of a tree whilst retaining a shape appropriate to the species. Crown reduction will usually only be appropriate for trees growing beneath the overhead line.  

Directional pruning
 
This operation involves target pruning of branches to a suitable fork so that remaining branches and future growth is directed away from the lines.

Avoiding conflicts - how to avoid tree and utility conflicts

Most conflicts can be avoided if you plant the right trees in the right place.