These guidelines will enable engineers, consultants, and private developers to efficiently and effectively meet District policies and standards as they relate to tree removals, tree plantings, and tree protection methods. Maintaining these protections through development will lessen undesirable consequences that may result from uninformed or careless acts, preserve both trees and property values, and reduce risks associated with damaged or destabilized trees. Existing structures and/or existing secured fencing at least 3.5 feet tall can serve as the required protective fencing. E-4. 1. : Install a physical and highly visible obstruction around the tree or trees to be preserved. These guidelines will enable engineers, consultants, and private developers to efficiently and effectively meet District policies and standards as they relate to tree removals, tree plantings, and tree protection methods. Performance Path. No person may refuse entry or access to a permitted development site to any authorized representative of the City who provides proper credentials and requests entry for the purpose of conducting a Tree Protection inspection. 1.2 CONTRACT DOCUMENTS A. Shall consist of specifications and general conditions and the drawings. SECTION E - FILTERING. Clear Water Pipe Through Silt Fence/Super Silt Fence PDF DWG. To protect trees, regulate cutting, and outline replanting requirements, the Township of Langley Council adopted Tree Protection Bylaw 2019 No. These standards apply to any tree that is required to be retained on site or in the street during a development activity. Welded Wire: 14 gauge galvanized welded wire with 2" x 4" openings attached to 6’ minimum “T”- steel posts, driven at least 2’ into ground @ 10 foot intervals or approved equivalent. The default specification is; Vertical and horizontal framework secured in to the ground, well braced to resist impact. Forgot your username or password? © Copyright 2020 City of Portland, Oregon, USA. TREE PROTECTION FENCING MUST BE AT LEAST 1.2M IN HEIGHT, AND CONSTRUCTED OF RIGID OR FRAMED MATERIALS (E.G. Place an X on the tree symbol for trees to be destroyed. Site guidance note 2: Fencing protected trees Board specification on secure wooden posts is a suitable alternative to the standard braced scaffold design. • Tree protection must be constructed of a rigid material (2” x 4” framing covered by stapled orange fence), 4’ tall, and a minimum area of 4’ X 9’ or constructed to the size of the tree box. When an excavation or embankment is placed within the dripline of any tree greater than (8) inches in diameter, a Tree well shall be constructed to protect the tree as indicated, when the cut or fill exceeds (8) inches. Injure . Figure 5a. Additional information. SGN 2-03 Jan 1 2018: DWG PDF: S1-02 : Typical Residential Turn Around. See related specifications. trees. If not possible, endstream endobj startxref An alternative to dug supports is concrete blocks set outside the RPA. Existing structures and/or existing secured fencing at least 3.5 feet tall can serve as the required protective fencing. Create an Account », (Amended by Ordinance No. Prior to starting any tree felling works all trees to be retained shall be identified and the necessary tree protection fencing installed. 2- If there is no existing irrigation, see specifications for watering requirements. Dots 1. E-3. DIƂT ���4#��8P�(9(����� ^�5 (2)  When a root protection zone extends beyond the development site, protection fencing is not required to extend beyond the development site. Dr. Ed Gilman from University of Florida, Jim Urban, FASLA, and Brian Kempf and Tyson Carroll of the Urban Tree Foundation have developed a modern, up-to-date, and peer reviewed set of details and specifications in AutoCAD, PDF, and Microsoft Word formats for the green industry. Clean up and disposal of all excess and surplus material. CONTRACT DOCUMENTS. Super Silt Fence PDF DWG. SGN 2-03 11.60.040 Tree Pruning and Root Cutting Specifications. level i fence protection (detail 1.1.2): Fabric: Fabric (4 foot height or 1.2 m) shall consist of orange plastic fencing as shown on the plans and shall be woven with 2-inch (50 mm) mesh openings such that in a vertical dimension of 23 inches (584 mm) along the A. Shall consist of specifications, general conditions and the drawings. The New York State Department of Environmental Conservation announces the availability of the updated New York State Standards and Specifications for Erosion and Sediment Control (Blue Book), dated November, 2016. DBH refers to the tree diameter measured at 1.4 metres (4.5 feet) above the ground. The purpose of this provision is to ensure that logistical considerations are adequately addressed in order to prevent the need for changes to the tree protection measures during the construction process. The tree protection regulations keep the foliage crown, branch structure and trunk clear from direct contact and injury by equipment, materials or disturbances; preserve roots and soil in an intact and non-compacted state; and visibly identify the root protection zone in which no soil disturbance is permitted and other activities are restricted. Tree preservation is site- speciic and other guidelines and protective measures also may be appropriate. Tree protection barrier encloses the Tree Protection Zone and is at least 4’ tall, highly visible, sturdy, permanent and has warning signs on or near it for the duration of any construction activities. Where used for protection of individual trees, fence shall be placed at the drip line (extent of canopy). 1���s]�� �o�d�%{>G��r�%�,�*��Rx��C�����'ʼn m�,� "%{�@�$ ����0]��d)$ ,3��:: f Htt�9l �DI\�T1c����Dt4p�!�c�1@6s��)Ĭ@l�@��{���@Z��A���~�W�. Plunge Pool PDF DWG. See tree preservation plan for fence alignment. Rock Outlet Protection II. high tree protection fencing as per requirement # 3 crz (min.) The Blue Book provides standards and specifications for … TREE PROTECTION SPECIFICATIONS. 4’ orange tree protection fence. Tree Protection. means any intentional or negligent act, including various tree climbing practices, spiking, If construction traffic cannot be avoided within the CRZ: You can see the roots spread well beyond the Critical root zone. Clean up and disposal of all excess and surplus material. 9. A typical fencing specification for the protection trees on development sites is as follows: Uprights driven well into the ground with additional bracing as required. 13.52.025 Tree protection and preservation. All Public Right-of-Way, Park, Parkway or public space trees are protected by ordinance. An alternative to dug supports is concrete blocks set outside the RPA. 13.52.030 Violations. The intent of these 10. means any intentional or negligent act, including various tree climbing practices, spiking, Whenever trees are within or adjacent to a work zone, tree protection is required for the entire duration of the project, all the way through final completion. 11.60.030 Tree Protection Specifications. The BDS Director may require the proposed tree protection method to be peer reviewed for adequacy; reject the proposal if deemed insufficient to meet Subsection C.2.b, above; or require a performance guarantee per Section 11.10.060 in order to ensure the protection methods are properly implemented. Mulch is to be kept 12” from the trunk. See related specifications. Cellular confinements systems are employed to enable all traffic types to use that area whilst ensuring that the tree roots of the tree remain protected. Specifications (Vol 1,2,5,6,7,8) Region of Durham. %PDF-1.5 %���� Steel posts installed at 8' o.c. Placing a protective fence around the critical root area assures tree survival. 5" thick layer of mulch. The City may request additional information regarding the proposed development, including construction management approaches, if the proposed development and tree protection appear to conflict. Silt Fence on Pavement PDF DWG. Figure 5b. ... OPSD 0220.0100 Barrier for Tree Protection. f.  The fence shall be installed before any ground disturbing activities including clearing and grading, or construction starts; and shall remain in place until final inspection. Tree Protection fence: High density polyethylene fencing with 3.5" x 1.5" openings; Color-orange. 2" x 6' steel posts or approved equal. No pooling of water or continuous running water shall occur within the drip line of existing trees or within the tree protection zones other than that during the irrigation process. The Tree Plan shall show that trees retained are adequately protected during construction using one of the methods described below: a. Changes to the tree protection measures during the course of the development may be approved as a revision to a permit provided that the change is not the result of an unauthorized encroachment into a root protection zone, and the applicant demonstrates that the tree protection standards of this Section continue to be met. 2. scale: date: as noted temporary fence, see specifications spacing 1.5m qc. 861 0 obj <>stream h�b```b``e`e`�[� Ȁ �,@Q�L�)��^��‰����p�e9�x�a��) njg�op���3M9X�`΄�m �s���.0�0J9,�!B� ì���f��Z������� Existing structures and/or existing secured fencing at least 3.5 feet tall can serve as the required protective fencing. PDF DWG. Planting Details and Specifications. C.  Protection methods. Boards following the line of existing hard standing, enclosing the vulnerable RPA within the fencing. Remove tree protection fencing and other protection from around and under trees and plants. o. Tree protection barriers must be made of 2.4m (8ft) high plywood hoarding or equivalent as approved by Urban Forestry. 2. (See 1.30) Felling of trees to be removed shall involve the complete removal of trees indicated, including stumps, by one of the following methods to be approved by the Architect before work commences: %%EOF (3)  Existing encroachments into the root protection zone, including structures, paved surfaces and utilities, may remain. 3- No pruning shall be performed except by approved arborist. means the arboricultural specifications and standards of practice, ... means any occasion of prohibited activity within an area protected by a tree protection fence. temporary fence . A sample specification is given below (Default specification for protective barrier BS5837:2012). Remove tree protection fencing and other protection from around and under trees and plants. Our particular system, CORE TREE ROOT PROTECTION® is available in 5 depths: 50mm, 75mm, 100mm, 150mm, 200mm. A root protection zone is established as follows: (1)  For trees on the development site - a minimum of 1 foot radius (measured horizontally away from the face of the tree trunk) for each inch of tree diameter (see Subsection 11.80.020 C., Measurements): (2)  Street Trees – the City Forester may prescribe greater or lesser protection than required for on-site trees. A 6” layer of coarse mulch or woodchips is to be placed beneath the dripline of the protected. Jan 1 2018: DWG PDF: S1-01 : 20 & 28 Ft Local Street Sections. 4'-0" Maintain existing grade with the tree protection fence unless otherwise indicated on the plans. protection. In addition, no person may obstruct, hamper or interfere with any such representative while in the process of carrying out their official duties. British Standard BS5837 Tree Protection and Fencing Home / British Standard BS5837 Tree Protection and Fencing Advanced Arboriculture hold a comprehensive protective fencing stock which is available for purchase or hire and can be erected to a range of specifications including the full British Standard 5837:2012 detail. Injure . o. trees. When the prescriptive path is not practicable, the applicant may propose alternative measures to modify the prescriptive root protection zone, provided the following standards are met: a. If roots are to be exposed for a period greater than 48 hours, the exposed area shall be covered with at least six inches of mulch and maintained moist during the course of construction until the area can be properly backfilled. Tree protection fences must be located at the edge of critical root zone or work limits, i.e. Show and label 4’ orange tree protection fence. The information presented here provides access to tree-related standards and specifications for the District of Columbia. A typical fencing specification for the protection trees on development sites is as follows: Uprights driven well into the ground with additional bracing as required. o. 773 0 obj <> endobj Intent. mulch area enclosed by fence with shredded hardwood bark mulch. This policy is adhered to unless the demolition is not possible with trees … tree protection fence must be outside of tree root zone (dripline) per tree protection table. A 6” layer of coarse mulch or woodchips is to be placed beneath the dripline of the protected. 4- No equipment shall operate inside the D-4-2. PDF DWG. D.  Changes to tree protection. D-4-1-C. Rock Outlet Protection III. the tree base tree protection signage as per city standard soil and root disturbance not permitted crz 1.2m min. OPSD 0219.1100 Light Duty Silt Fence Barrier. h�bbd```b``��������"����!�d� ��@$�0{/��&W�E���,�i� �+ Site guidance note 2: Fencing protected trees Board specification on secure wooden posts is a suitable alternative to the standard braced scaffold design. 2. TREE PROTECTION SPECIFICATIONS. Future of arb 1; Future of arb 2; Glossary; Myth Busters. Tree Protection fence: High density polyethylene fencing with 3.5" x 1.5" openings; Color- orange. 1. 11.60.010 Where These Regulations Apply. Protection fencing (1) Protection fencing consisting of a minimum 6-foot high metal chain link construction fence, secured with 8-foot metal posts shall be established at the edge of the root protection zone and permissible encroachment area on the development site. OPSD 0219.1200 Light-Duty Fibre Roll Barrier. tree(s). Tree and Hedge Protection Fencing Specifications; Bats and Development; A Guide to BS 5837; Knotweed - all you need to know; Urban tree planting; Land management; Arisings. 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