Managing Surface Roots of River Birch Near Structures

Situation

15-year-old river birch (10–12″ DBH) has 3–4″ surface roots lifting pavers and growing toward house 12 ft away.

Root Pruning Guidelines

• Cut roots at pavers/house line—as far from trunk as possible.
• Limit to 20% of root zone on one side (visualize as pie slice).
• Dig 18–24″ trench and install root barrier to redirect future growth.
• Best time: Fall—less stress, energy directed to root regrowth.

Key Takeaway

Strategic root pruning with barrier installation protects structures while preserving tree health.