Tree Root Sidewalk Protection: Innovative Municipal Solution

A Community Success Story

When DeKalb County planned to remove a mature tree for sidewalk repair, a neighbor's advocacy sparked an innovative solution: raising the sidewalk over the roots rather than cutting them. This "root bridge" approach preserved both the tree and pedestrian access.

The Process

1. County initially proposed tree removal for sidewalk replacement
2. Neighbor intervention prompted reconsideration
3. Planning department designed elevated sidewalk section
4. Construction created gentle arch over critical root zone
5. Tree retained, sidewalk functional, community satisfied

Key Principles

• Tree roots need oxygen—compacted soil under traditional sidewalks suffocates them
• Elevated walkways allow air and water penetration
• Flexible design accommodates future root growth
• Community advocacy can drive creative municipal solutions

Broader Application

This approach is increasingly adopted by municipalities recognizing mature trees as valuable infrastructure. The initial cost premium is offset by avoided tree removal, replacement, and lost ecosystem services.