Boards following the line of existing hard standing, enclosing the vulnerable RPA within the fencing. Mulch is to be kept 12” from the trunk. 188278, effective April 14, 2017.). 4'-0" Maintain existing grade with the tree protection fence unless otherwise indicated on the plans. 11.60.030 Tree Protection Specifications. A. Shall consist of specifications, general conditions and the drawings. C. Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected during construction, and defined by a circle concentric with each tree with a radius 1.5 times the diameter of the drip line, with a minimum of a 5 feet clearance barrier between drip line and fence, unless otherwise indicated on Logistic Plan. 10. 4- No equipment shall operate inside the mulch area enclosed by fence with shredded hardwood bark mulch. 5" thick layer of mulch. 13.52.025 Tree protection and preservation. trees. Where used for protection of individual trees, fence shall be placed at the drip line (extent of canopy). means any intentional or negligent act, including various tree climbing practices, spiking, Prior to starting any tree felling works all trees to be retained shall be identified and the necessary tree protection fencing installed. Tree protection barriers must be made of 2.4m (8ft) high plywood hoarding or equivalent as approved by Urban Forestry. 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. Proposed tree protection shall meet the requirements of Subsection C., below, except that the City Forester may approve or require alternate protection methods for Street or City Trees. Prior to starting any tree felling works all trees to be retained shall be identified and the necessary tree protection fencing installed. Figure 5a. 1. Overhead view of a tree protection zone (gray fence) for a group of trees. (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: Tree protection. %PDF-1.5 %���� 2.04.1 1 foot of radial protection per diameter inch of tree shall determine CRZ (i.e., a 20” tree would have a 40 foot diameter CRZ; see chart below) 2.04.2 Areas: 2.04.21 A quarter of CRZ means no impact is allowed 2.04.22 Half of CRZ means no cut or fill greater than 4” is allowed (i.e., for a 20” tree … Jan 1 2018: DWG PDF: S1-02 : Typical Residential Turn Around. Planting Details and Specifications. The information presented here provides access to tree-related standards and specifications for the District of Columbia. All trees as defined by Surrey Tree Protection Bylaw, No 16100 must be protected during demolition. Existing structures and/or existing secured fencing at least 3.5 feet tall can serve as the required protective fencing. 2. Height of hoarding may be less than 2.4m (8ft), to accommodate tree branches that may be lower, or as approved by Urban Forestry. (b)  no new encroachment is closer than 1/2 the required radius distance (see Figure 60-1); (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. 1. A protective barrier of 6’ chain link fencing shall be installed around the dripline of protected. Crown drip line or other limit of Tree Protection area. The City may request additional information regarding the proposed development, including construction management approaches, if the proposed development and tree protection appear to conflict. In addition, no person may obstruct, hamper or interfere with any such representative while in the process of carrying out their official duties. of trees, determine the critical root radius for each individual tree. high tree protection fencing as per requirement # 3 crz (min.) 13.52.030 Violations. C. Tree Protection Fence: Tree protection fence shall be a minimum of four feet high. 9. Specifications (Vol 1,2,5,6,7,8) Region of Durham. An alternative to dug supports is concrete blocks set outside the RPA. 2" x 6' steel posts or approved equal. These standards apply to any tree that is required to be retained on site or in the street during a development activity. h�b```b``e`e`�[� Ȁ �,@Q�L�)��^��‰����p�e9�x�a��) njg�op���3M9X�`΄�m �s���.0�0J9,�!B� ì���f��Z������� A 6” layer of coarse mulch or woodchips is to be placed beneath the dripline of the protected. DIVISION 01 SPECIFICATIONS November 4, 2013 TEMPORARY TREE AND PLANT PROTECTION 015639 - 1 SECTION 015639 - TEMPORARY TREE AND PLANT PROTECTION PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. If construction traffic cannot be avoided within the CRZ: You can see the roots spread well beyond the Critical root zone. 773 0 obj <> endobj 2. 1.2 CONTRACT DOCUMENTS A. Shall consist of specifications and general conditions and the drawings. 1. : Install a physical and highly visible obstruction around the tree or trees to be preserved. 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. 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. Tree protection fences must be located at the edge of critical root zone or work limits, i.e. (3)  Existing encroachments into the root protection zone, including structures, paved surfaces and utilities, may remain. Injure . Tree Protection. c.  Signage designating the protection zone and penalties for violations shall be secured in a prominent location on each protection fence; d.  Installation of landscaping required by Title 33 is allowed within the root protection zone and is not an encroachment. 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. 11.60.060 Tree Maintenance Specifications and Responsibilities. Performance Path. A protective barrier of 6’ chain link fencing shall be installed around the dripline of protected. The Tree Plan shall show that trees retained are adequately protected during construction using one of the methods described below: a. 5478. means the arboricultural specifications and standards of practice, ... means any occasion of prohibited activity within an area protected by a tree protection fence. 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. Site guidance note 2: Fencing protected trees Board specification on secure wooden posts is a suitable alternative to the standard braced scaffold design. The Blue Book provides standards and specifications for … Steel posts installed at 8' o.c. 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. PDF DWG. scale: date: as noted temporary fence, see specifications spacing 1.5m qc. 2. 0 The intent of these h�bbd```b``��������"����!�d� ��@$�0{/��&W�E���,�i� �+ E-1. D-4-1-C. Rock Outlet Protection III. Any in-ground irrigation systems are considered encroachments. Notes: 1- See specifications for additional tree protection requirements. temporary fence intersects tree dripline; no rootpruning required n.t.s. tree(s). The information presented here provides access to tree-related standards and specifications for the District of Columbia. The arborist has prepared a plan providing the rationale used to demonstrate that the alternate method provides an adequate level of protection based on the findings from the site visit described above; c.  The protection zone shall be marked with signage, stating that penalties will apply for violations, and providing contact information for the arborist; d.  If the alternative methods require the arborist be on site during construction activity, the applicant shall submit a copy of the contract for those services prior to permit issuance and a final report from the arborist documenting the inspections and verifying the viability of the trees prior to the City’s final inspection; e.  If the alternative tree protection method involves alternative construction techniques, an explanation of the techniques and materials used shall be submitted; f.  The arborist shall sign the tree preservation and protection plan and include contact information. crz (min.) 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. Jan 1 2018: DWG PDF: S10-01: Typical Above-Ground Power Receptacle. PDF DWG. Use durable fencing material, such as plastic construction fencing, snow fence or chain link. This policy is adhered to unless the demolition is not possible with trees … Figure 5b. Future of arb 1; Future of arb 2; Glossary; Myth Busters. Our particular system, CORE TREE ROOT PROTECTION® is available in 5 depths: 50mm, 75mm, 100mm, 150mm, 200mm. If you are unsure of the tree’s DBH, call the Tree Protection Line at 604-533-6111. Mulch is to be kept 12” from the trunk. trees. 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. (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: Clean up and disposal of all excess and surplus material. 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. Remove tree protection fencing and other protection from around and under trees and plants. 3. 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. Place a protective fence outside the critical root area of all trees in the group (Figure 5b). Site guidance note 2: Fencing protected trees Board specification on secure wooden posts is a suitable alternative to the standard braced scaffold design. o. The alternative root protection zone is prepared by an arborist who has visited the site and examined the specific tree’s size, location, and extent of root cover, evaluated the tree’s tolerance to construction impact based on its species and health, and identified any past impacts that have occurred within the root zone; b. MODULOC - STEEL, PLYWOOD HOARDING, OR SNOW FENCE ON A 2”X4” WOOD FRAME) WITH POSTS 2.4M APART, SUCH THAT THE FENCE LOCATION CANNOT BE ALTERED. Tree Protection fence: High density polyethylene fencing with 3.5" x 1.5" openings; Color-orange. A sample specification is given below (Default specification for protective barrier BS5837:2012). 11.60.010 Where These Regulations Apply. Additional information. Place an X on the tree symbol for trees to be destroyed. 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