Root removal The complete extraction of invasive tree roots from beneath a sidewalk work zone to allow for a level subbase preparation.
When tree roots have completely taken over the subgrade, full root removal may be required to pour a flat sidewalk. This is a highly regulated process in NYC, as removing major anchor roots can cause a tree to topple over in a storm. Contractors must work closely with the NYC Parks Department to obtain permits before removing any roots larger than 2 inches in diameter.
Frequently Asked Questions About Root removal
When is full root removal necessary?
When roots have taken over the subgrade to the point that a level, properly supported slab cannot otherwise be placed.
Is root removal allowed on City trees?
It is highly regulated. Removing significant roots requires NYC Parks involvement and permitting, particularly for larger-diameter roots.
What is the risk of removing anchor roots?
A tree that loses its structural roots can topple in a storm, creating a serious safety and liability problem.
Who should perform the work?
Crews working under arborist guidance and Parks authorization, coordinated with the sidewalk contractor.