The City of Washington Tree Trimming Ordinance 151.02 & 151.03 states homeowners are liable and responsible for the proper care, maintenance, pruning, and trimming of trees, including fallen branches, so as to prevent interference with visibility and physical obstruction of pedestrian and vehicular traffic, utility service lines, street signs, and traffic control devices. All trees shall be trimmed to a minimum height of 15 ft., six inches (15’6”) above the traveled roadway, and a minimum height of eight ft. (8’) above a sidewalk. Additional height restrictions may be imposed by the City where necessary to ensure adequate visibility in specific situations. Removal of Dead or Diseased Trees located on private property, which are judged to be a hazard, or a nuisance, as determined by the Forestry Commission, shall be condemned by the City and removed by the owner.