The first step to saving trees from possible construction damage is good planning. Before ground is broken, the location and status of each tree should be mapped and any arrangements to protect the trees during construction should be made.

Pre-Construction: Stake out the location of important trees. By changing the design of the angle of a building or walkway, the essential root space of most trees can be preserved. Remove or transplant trees leaning over future structure sites, or those located closer than five feet to a new home. Do not alter terrain except where absolutely necessary. By avoiding leveling, cutting and filling, one can minimize root damage, changes in soil content and depth and changes in natural water flow.

During Construction: The most common damage to trees from construction is not physical damage to the above-ground portion of the tree, but rather soil compaction and damage to the roots. This kind of damage is even more difficult to "repair." Therefore, it is extremely important that proper protection measures be taken to prevent damage, so mark all construction roads, parking areas and storage areas to protect trees. Stake out exact locations of trenches and underground utilities, avoiding important root areas. Erect physical barriers around trees near construction activity. Keep in mind that tree roots are mostly in the upper 12 to 18 inches and can spread 2 to 3 times the height of the tree.

If barriers are not possible:

• Spread several inches of wood chips around the trees
• Pump concrete from a truck via conveyer pipes
• Bridge root areas with plates of steel to avoid soil compaction from construction traffic.

• Spread a heavy plastic tarp when mixing concrete or cutting sheet rock.

• Do not clean paintbrushes and tools over tree roots
• Chemical wastes should be disposed of properly
• Do not use wood products containing pentachloraphenol. It is deadly to roots.