How is tree work performed?

Before any tree work can be performed on private property, utility contractors must notify tree owners, except under certain easement conditions. Door hanger notifications are provided when tree owners are not home. For work on public property, the appropriate highway official or municipal tree warden generally grants permission.

Eversource and UI undertake two types of tree work:

  1. Scheduled Maintenance Trimming (SMT) is performed on a regular basis area, with a goal of trimming roughly 15 to 25 percent of circuits every year. The clearance required for SMT is eight feet on sides, 10 below, and 15 feet above the line.
  2.  Enhanced Tree Trimming (ETT) is higher-priority tree trimming and involves work closer to substations that would potentially impact more customers. ETT protects the "backbone" of the electrical distribution system and requires clearances of eight feet on the sides, 10 feet below and removal of all overhanging limbs whenever possible or a minimum of 20 feet above the line.

Trees that are decayed, insect-infested, damaged or structurally weak may be removed.

Small trees and saplings that are capable of growing into the conductors are normally removed before they grow tall enough to interfere with the lines.

Limbs are pruned using a tree-care industry technique known as “target pruning”. Each limb is pruned back to a point where it meets the branch collar so that the pruning cut will callous over and prevent decay of the pruning wound.

If there are any concerns or questions regarding this program please contact our Tree Warden.

Show All Answers

1. What is the leaf pick up schedule?
2. What is the Enhanced Tree Trimming (ETT) Program, what role does the Trumbull Tree Warden play in it and what rights do I have as a homeowner?
3. How does this system manage the risk of tree failure?
4. Who do I contact if a tree is interfering with utility wires?
5. Who do I contact about a Town tree that needs attention?
6. Where can I find more information on United Illuminating's (UI's) Tree Care Program?
7. How are “Tree Service Requests” prioritized?
8. How long does it take for the Town to check a tree?
9. How is tree work performed?
10. If a private tree falls into the Town "Right-of-Ways" property line, who is responsible for its removal?
11. If the Town cuts down a tree in front of my house, can I keep the wood?
12. The Town of Trumbull removed a tree from our property and left the trunk, why?
13. Can a resident oppose the removal of a tree under the Enhanced Tree Trimming (ETT) Program?
14. What is happening to the Ash trees?