Trees and utilities compete for space above and below ground. Where the utilities are above ground often there are conflicts with limbs and wires. When the utilities are below ground there may be conflicts with the roots systems of trees.

Limbs that come in to contact with power lines pose an electrical hazard. Sometimes contact is only made when there is wind, rain or snow. Look for burnt looking leaves or stunted ends that resemble a “witches broom”. Electricity follows down the path of least resistance. Trees are excellent conductors because of their high moisture content. Do not attempt to prune trees that are in proximity or in contact with electric lines. If one part of the tree is energized the whole tree may be energized. Contact your local power company or an arborist who is qualified to work around energized conductors. Cable T/V and telephone lines should be treated just like power lines as it is possible for the power lines to have energized them.

Avoiding conflicts with underground utilities is another matter. Studies are showing that roots gravitate towards water and sewer pipes because of the condensation on those pipes. In many cases the roots find the pipes at depths much deeper than are normally associated with typical root systems. Usually the damage to the pipes is a junctures or fittings. Knowing where the utilities are located may help avoid problems. Depending on the situation you may be able avoid conflicts by root pruning or using a supersonic airspade to expose the roots. Breaks in underground natural gas lines will kill trees, shrubs, and turf.

The best way to avoid conflicts is proper planning. Plant only low growing trees under or in close proximity to services lines. Plant trees with non invasive root systems where there are underground utilities. With mature landscapes preventative action could help avoid service interruptions that always seem to catch us off guard