Construction tips for tree preservation

Protect the root zone

• Keep digging, grading and heavy equipment outside the dripline (the edge of the tree’s canopy).
• Avoid compacting soil or cutting major roots whenever possible.

Set a no work zone

• Mark and fence the area under the canopy to prevent driving, storage or excavation.

Prevent physical damage

• Keep equipment clear of the trunk and branches.
• Have a qualified arborist perform any necessary clearance pruning.

Store materials away from trees

• Do not pile soil, gravel or construction materials against the trunk or over roots.

Tunneling vs. trenching

Trenching

• An open cut made in the ground for installing utilities.
• Often cuts through major roots, which can compromise tree health and stability.

Tunneling (Boring)

• A horizontal bore placed under the root zone with minimal surface disturbance.
• Preferred method because it avoids cutting large roots and reduces stress on the tree.