Guidelines for Planting Near Utility Lines

Planting trees near streetlights: Shade trees should be spaced an adequate distance away from streetlights to avoid illumination problems. There is a provision in city code that addresses such problems, including the responsibility of property owners to trim trees that block illumination. In some cases, such as in special districts, pedestrian level lighting can help solve illumination problems by providing light under the limbs of large deciduous trees. This approach was recognized in the Fort Sanders Neighborhood Plan.

Trees in relation to underground utilities: Tree root systems typically grow only 2 to 3 feet below the surface so there are opportunities to plant near some underground utilities. However, some species (for instance, those that have root systems that can cause penetration into sewer lines) should be avoided. Root systems should not be cut when laying or replacing underground lines; tunneling, as opposed to trenching, better insures the health of a tree. The species and locations for trees should be addressed on a case-by-case basis when developing a planting plan for a particular street or highway.