Pine on Eroding Slope: Remove Before It Falls

A 60-ft pine on a steep slope 20 ft behind a Bay Area home has soil sliding away from roots on the downslope side. Owner asks if roots are deep enough to hold it.

Verdict: Remove It

Once >50% of the root system is exposed, the tree will eventually fail—timing depends on storms. If the fall path hits the house, remove proactively. If it falls into open space, monitor and enjoy until it goes.

Stabilization Not Practical

Retaining walls or soil nailing are expensive and may not save the tree long-term. Removal is safer and often cheaper.