Driveway Installation Near Ancient Live Oak: Root Protection Strategy

48–60" diameter live oak, 100+ ft spread, house built 1950 adjacent. Plan concrete driveway 10 ft from trunk. Surface roots in paving area. Cut or pave over?

Root Cutting Impact

Cutting 10 ft from trunk on 100-ft spread tree severs ~⅓ roots (>25% threshold = damage). Foliage dieback will occur. Paving over roots avoids cutting but may lift pavement later and blocks rainfall.

Recommendation

Hire ISA Certified Arborist for on-site plan balancing tree preservation and driveway needs. Find one at isa-arbor.com. Crushed rock may be better than concrete.