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Tree removal
Sometimes the best solution to tree and power line conflicts is tree removal. We work with neighborhoods to remove problem
trees, particularly in cases where they require repeated pruning. Tree removal is especially important where pruning along
cannot achieve safe clearance from power lines.
Rocky Mountain Power seeks the property owner's written permission prior to tree removal. Coupons are also provided to help
landowner's buy low-growing replacement trees. These coupons are redeemable at local nurseries.
In the cases where sites are not suitable for pruning, we use mowers to remove the trees. Mowing sites often have dense populations
of trees with straight trunks, such as pines or other conifers, which cannot be pruned to grow around power lines. The alternative
to mowing, removing the tops of the trees, inhibits tree health and growth.
Trees can cause other dangers as well. One example are rural roads where overgrown trees can obstruct motorists’ view of the
roadway. Trees growing under power lines in forested areas can also pose a fire risk. Mowing these areas creates a fire lane
that protects the power line as well as the forest and the people who are served by the lines.
Mowing does not carry a lasting environmental impact. Areas that have been mowed often grow back quickly with plants formerly
suppressed by the trees, such as grasses, ferns and wildflowers.
Tips for planting
To reduce the need for future pruning, be sure you choose an appropriate tree for the space (especially around power lines).
Some things to keep in mind as you're planting:
- Low-growing trees (under 25 feet when mature) may be planted adjacent to overhead power lines.
- Plant tall-growing trees (over 25 feet when mature) at least 25 feet away from overhead power lines.
- Trees that grow taller than 35 feet when mature should be planted 50 feet away from overhead lines.
- Plant trees and shrubs at least 10 feet away from ground-mounted transformers.
- Locate underground utilities before you plant. Find the number of the free location service in your state.
- Plant deciduous trees facing southeast and southwest for summer shade and winter sun.
- Plant evergreen trees to provide winter windbreaks.
For more information about what types of trees to plant near power lines, you can
place an order for our free
Small Trees for Small Places book or download a copy (1 MB).
Safety matters
When working outside with antennas, ladders and long-handled tools, remember to always look up to see if power lines are near.
Never trim limbs or remove trees around power lines, and do not climb utility poles or trees near power lines for any reason. See more information on electrical safety .
Tree clearances around high-voltage transmission lines
Trees typically must be removed around high-voltage transmission lines to protect the safety and reliability of electric service.Trees that grow too close to high-voltage power lines create
hazardous conditions that can cause forest and brush fires, endanger homes, interrupt electric service and contribute to a
catastrophic failure of the power grid.
Work will either be done by manual hand crew or by machine, based on the terrain. In either case, where trees and brush are
removed, logs will be left for the landowner's use. Resulting brush and limbs will be cut to within 18 inches of the ground.
The figure below shows the areas around the power lines and towers that should be kept clear. We hope to keep the wire zone
clear of trees and fast-growing vegetation. Utility-friendly trees are acceptable in the border zone. Any imminently hazardous
trees in any zone will be removed for your safety and the integrity of our system.
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