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Article 3 Definitions 1 Commentary is for information only. Proposed new language is double-underlined; Proposed deleted language is stricken. ORDINANCE NO. XX AMENDMENTS TO VOLUME 3 DEVELOPMENT CODE OF THE GRESHAM COMMUNITY DEVELOPMENT PLAN, REGARDING THE DEVELOPMENT CODE IMPROVEMENT PROJECT-6 TREE CODE UPDATE THE CITY OF GRESHAM DOES ORDAIN AS FOLLOWS Section 1. Volume 3, Section 3.0100 is amended as follows: Proposed Text Amendment Commentary ARTICLE 3 DEFINITIONS 3.0150 Tree Related Terms and Definitions [3.01]-1 *** ” D. Tree Related Terms and Definitions. Section 3.0150 *** Buffer Tree – See Tree [3.01]-2 - [3.01]-6 *** Tree Caliper – See Tree *** Clear Cutting – See Tree Related Section 3.0150 Definitions, *** Critical Root Zone – See Tree Related Definitions, Section 3.0150 Crosswalk *** Crown Cover – See Tree Related Definitions, Section 3.0150 *** Diameter Breast Height – See Tree Related Definitions, Section 3.0150 *** DRAFT - City of Gresham Development Code (10/29/14 open house review) 2 Dripline – See Tree Related Section 3.0150 Definitions, *** Major Tree – See Tree *** Hazardous Tree – See Tree *** Hogan Cedar Tree – See Tree *** Imminent Hazard Tree – See *** Tree *** Pruning – See Tree Related Definitions, Section 3.0150 *** Regulated Tree – See Tree *** Ornamental Tree – See Tree *** – See Tree Parking Lot Tree *** Perimeter Tree – See Tree *** Severe Crown Reduction – See Tree Related Definitions, Section 3.0150 *** Shade Tree – See Tree *** Significant Tree, Significant Grove – See Tree *** Stand - See Tree Related Definitions, Section 3.0150 *** Tree • Buffer Tree • Canopy Tree – See Shade Tree • Deciduous Tree • Evergreen Tree • Hazardous Tree • Hogan Cedar Tree • Imminent Hazard Tree • Major Tree • Ornamental Tree • Parking Lot Tree • Perimeter Tree • Regulated Tree • Shade Tree • Significant Tree, Significant Grove DRAFT - City of Gresham Development Code (10/29/14 open house review) 3 • Site Tree • Site Tree • Tree Caliper Tree Protection Plan – See Tree Related Definitions, Section 3.0150 Tree Removal – See Tree Related Definitions, Section 3.0150 Tree Survey – See Tree Related Definitions, Section 3.0150 Tree Topping – See Tree Related Definitions, Section 3.0150 Tree Well - – See Tree Related Definitions, Section 3.0150 Tree Related Terms [3.01]-8 • Clear Cutting • Critical Root Zone • Crown Cover • Diameter Breast Height • Dripline • Pruning • Severe Crown Reduction • Stand • Tree Protection Plan • Tree Removal • Tree Survey • Tree Topping • Tree Well Arborist. A person possessing the education and technical competence [3.01]-10 through experience and related training to provide for or supervise the To simplify references to management of trees or other woody plants in a landscape setting. Arborists in the Code, staff Certified Arborist. A tree care technician who has passed certifying proposes to primarily use the exams and holds current status as a Certified Arborist through the title and definition for Certified International Society of Arboriculture (ISA). A Certified Arborist is Arborist throughout the qualified to prune, treat, or remove trees but is not considered a Development Code, unless there Qualified Arborist. An individual who is certified as an arborist by the is a case to use Consulting, as International Society of Arboriculture (ISA) with a current and active noted below. ISA certification number. A Certified Arborist will agree in writing to perform all work in accordance with ANSI A300 standards such as Certified Arborist definition was pruning, treating or removing trees. Different certification titles should updated using a current be specified as appropriate for the specialties or advanced designation American Society of Consulting that best fits the project. Arborist resource document. Consulting Arborist . A professional in arboriculture who is a member of the American Society of Consulting Arborists (ASCA) or A Qualified Arborist title is not International Society of Arboriculture (ISA) and is qualified to bring a referenced or used industry-wide comprehensive, objective viewpoint to the diagnosis, appraisal, and so it was deleted. evaluation of arboricultural issues. Consulting Arborist is retained DRAFT - City of Gresham Development Code (10/29/14 open house review) 4 Qualified Arborist . A professional in arboriculture who has as this term is referenced in the demonstrated professional expertise by membership in the consulting overlay districts and civil arborist’s professional organization (ASCA) and is qualified to provide penalty portion of Section expert testimony about various issues relating to trees and other woody 9.1000. Consulting Arborists are plants. known for providing an Registered Consulting Arborist . A Consulting Arborist who has objective perspective related to completed additional requirements beyond those for basic membership tree protection and removal. in the ASCA and been recognized by the ASCA as having superior experience and expertise in the field of arboriculture. Buffer Tree. See Tree. [3.01]-11 Tree Caliper. See Tree . [3.01]-12 Clear Cutting. See Tree Related Definitions, Section 3.0150. [3.01]-13 Critical Root Zone. See Tree Related Definitions, Section 3.0150. [3.01]-14 *** Crown Cover . See Tree Related Definitions, Section 3.0150. Diameter Breast Height. See Tree Related Definitions, Section [3.01]-17 3.0150. *** Dripline. See Tree Related Definitions, Section 3.0150. Hazardous Tree. See Tree. [3.01]-23 *** Hogan Cedar Tree. See Tree. *** Imminent Hazard Tree. See Tree. Evergreen. Varieties of plants (including groundcover, shrubs and [3.01]-20 trees) with foliage that persists and remains green year-around. Major Tree. See Tree. [3.01]-28 Ornamental Tree. See Tree. [3.01]-31 Parking Lot Tree. See Tree. [3.01]-32 *** Perimeter Tree. See Tree. Pruning. See Tree Related Definitions, Section 3.0150. [3.01]-33 Regulated Tree. See Tree. [3.01]-35 Revegetation. The replacement of trees and plant materials where there [3.01]-36 has been soil disturbance or the loss of trees and other vegetation, or encroachment of invasive species. DRAFT - City of Gresham Development Code (10/29/14 open house review) 5 Severe Crown Reduction. See Tree Related Definitions, Section [3.01]-37 3.0150. Shade Tree. See Tree. *** Significant Tree, Significant Grove . See Tree. Stand. See Tree Related Definitions, Section 3.0150. [3.01]-42 Tree. A large, woody plant generally having a self-supporting stem or [3.01]-45; [3.01]-46 trunk and numerous branches. Buffer Tree. An evergreen or deciduous tree that has been approved as part of a buffering and screening plan. Dead Tree. A tree, as determined by a Certified Arborist, that does not The term dead tree is referenced have the characteristics of a habitat tree, and has been damaged beyond in the Hazardous Tree definition repair or is in an advanced state of decline where an insufficient amount yet the current code does not of live tissue, green leaves, limbs or branches exists to sustain life. define it. This definition is also intended to distinguish a dead tree from a habitat tree, which Deciduous Tree. A tree typically with broad, flat leaves that normally will also now be included in the sheds leaves annually and becomes dormant for some period of time. definitions. Evergreen Tree. A tree with needles or leaves that remain alive and on the tree through the winter and into the next growing season. New definition of Habitat Tree is used to retain trees that are Habitat Tree . A tree either living or dead that provides nesting space injured, dying or dead and not for birds and/ or hollows for cavity dwellers and perches for those animals using the area for foraging or living space. hazardous; and provide a natural resource function such Hazardous Tree. A tree that constitutes a hazard to life or has a as foraging, nesting or dwelling significant potential to cause injury to persons or damage to property for small insectivores, mammals because the tree is in imminent danger of collapse, or is otherwise and migratory birds. considered to be or likely to create a hazard. Hazardous trees may include, but are not limited to dead, broken, split, cracked, leaning, and uprooted trees. Hazard trees include dead or dying trees, or unstable New definition of Hazardous live trees (due to disease, structural defects or other factors) that are Tree based on the 2013 US within striking distance of a target, such as people or property; or have Forest Service definition. This been diagnosed with a lethal pathogen recognized by a consulting modification adds disease- arborist to present significant contagion risk to adjacent trees. Hazard related issues in the definition. trees have the potential to cause property damage, personal injury or fatality in the event of a failure. Hogan Cedar Tree. A unique form of Thuja plicata , the western red cedar, which grows naturally only in the Gresham area. The population Imminent Hazard Tree: Deleted center is located approximately where Hogan Road meets Johnson “all” from imminent hazard Creek. definition because it has now DRAFT - City of Gresham Development Code (10/29/14 open house review) 6 Imminent Hazard Tree. A hazardous tree where all or more than 30% become a past hazard, if “all” of percent has already fallen or is estimated to fall within 72 hours into the the tree has fallen. The Code public right-of-way or onto a target that cannot be protected, restricted, language is a better place for moved; or removed. Determination of Imminent Hazard is made by the the determination factors, which City of Gresham Public Works or Emergency Personnel, a PGE was deleted here in the forester, or a Consulting Arborist. definition. Landscape Tree. A tree that was approved as part of a landscaping plan, including “site” trees per Article 7. Landscape Tree: The Development Code includes Major Tree. Those trees that have a 12-inch DBH or greater (30-inches references to Landscape Tree DBH diameter at breast height for Trees First Policy). Major trees are without including a definition. those that contribute to the landscape character of the area, to include This term is primarily used Douglas-fir, red cedar, redwood, giant sequoia, oak, ash, birch, and maple.
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