Sources for More Information
Bulletin #35: How to Protect Trees During Underground Work
Trenching and Tunneling Near Trees: A Field Pocket Guide for Qualified Utility Workers
by James R. Fazio
Despite the subtitle, this little 32-page booklet is for anyone who will be digging around trees. It is well illustrated and clearly written. Anyone who will be building a foundation or installing an irrigation system or other pipes should read this booklet. Its use, along with Alex Shigo’s Pruning Trees Near Electric Utility Lines, is required reading for workers in utility companies that receive Tree Line USA recognition.
Search for “trenchless technology,” and “tree roots” for a wealth of additional information.