Answer: Tree branches will give you some indication of how far the roots extend so you should be able to see just where future problems might occur by looking at the branches. However, cutting off the branches will not stop the root growth underground so that won't solve future problems. About the only way to keep the roots from damaging your driveway is by digging down near the driveway and having a barrier installed. Just how deep you need to dig depends upon the type of tree and your soil type. You may want to hire a certified arborist to do an on-site evaluation. Best wishes with your landscape.
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