[Ord. No. 4342 § 1, 11-21-2016]
The following words, terms and phrases, when used in this Article, shall have the meanings ascribed to them in this Section, except where the context clearly indicates a different meaning:
CALIPER OR DIAMETER AT BREAST HEIGHT (DBH)A measurement of the size of a tree equal to the diameter of its trunk measurement at four and one-half (4 1/2) feet above natural grade. If a tree splits into two (2) or more trunks below four and one-half (4 1/2) feet, then the trunk is measured at its most narrow point below the split. For newly planted trees the caliper measurement will be taken six (6) inches above natural grade.
COMMISSIONThe Planning and Zoning Commission of the City of Berkeley.
CRITICAL ROOT ZONE (CRZ)An area drawn for each tree surveyed which represents the average root system. The average root system follows the crown drip line extending from the outer surface of a tree's branch tips to the ground. CRZs vary depending upon tree species, tree size, soils and moisture level, but shall always be deemed to incorporate a minimum distance of ten (10) feet beyond the defined boundary of the tree's root system.
DISTURBShall include the intentional or unintentional removal, destruction or killing of any tree, other than as provided by this Article.
GRAND TREEA tree in fair or better condition which equals or exceeds the following diameter sizes: large hardwoods (e.g., oaks, hickories, etc.) twenty-four-inch DBH; large softwoods (e.g., pines, spruces, etc.) twenty-inch DBH; small trees (e.g., dogwood, redbud, etc.) twelve-inch DBH. A tree in fair or better condition is defined as having a life expectancy of greater than fifteen (15) years, a relatively sound and solid trunk with no extensive decay, no more than one (1) major and several minor dead limbs (hardwoods only), and no major insect or disease problems.
GROVEAny grouping of eight (8) or more trees each having eighteen (18) inches or greater caliper with no tree trunk farther than thirty (30) feet from any other tree trunk in the group.
SPECIMEN VEGETATIONA unique grouping of rare or unusual plants justifying preservation pursuant to any established Federal, State or local guideline, including those established in the Tree Manual.
TIMBER SALEThe cutting, removal or other disturbance of trees affecting seven thousand five hundred (7,500) square feet or more of tree canopy coverage area for the purpose of selling or harvesting such trees or maintaining the health of a wooded area.
TREEA woody plant that grows mostly upright as a single or multiple stem that may eventually attain a height of fifteen (15) feet or more.
TREE CANOPY COVERAGEThe area in square feet of a tree's spread. Existing tree canopy is determined by measuring the ground's surface area that is covered by the branch spread of a single tree or clump or grove of trees.
TREE MANUALA document, adopted by this Article and on file in the City offices, having detailed instructions for preparing and evaluating tree preservation plans, grading, planting and protection of all types of vegetation. The Commission may make amendments to the specifications, standards and procedures in the Tree Manual for application of this Article, and such amendments shall become effective upon order, resolution or other approval of the Council.
TREE PRESERVATION PLAN (TPP)A site plan prepared by an approved professional that delineates tree save areas and details measures to be taken to ensure protection and survivability of trees to be saved, prior to and during construction, and also complies with guidelines which are listed in the Tree Manual. A tree preservation plan should include a tree stand delineation.
TREE STAND DELINEATION (TSD)A detailed description and location of trees and other woody vegetation on the site prior to any proposed land disturbance, prepared in map form, as specified in the Tree Manual. The tree stand delineation is to be prepared using the proposed development plan as a base map so that decisions can be made with respect to preserving existing vegetation.
ULTIMATE TREE CANOPYTo be used where replanting is required, is determined by assigning the following values for planted trees: one thousand (1,000) square feet for a large shade tree or major street tree; seven hundred (700) square feet for each medium street tree and most conifers and three hundred (300) square feet for small flowering trees. The Tree Manual contains a list of approved restoration tree species and their categories.