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HomeMy WebLinkAboutApproved Tree Preservation & Relocation SpecificationsApproved Tree Preservation and Relocation Specifications • • • • • TREE PRESERVATION AND RELOCATION SPECIFICATIONS For TERRAZAS DE MIAMI RIVER 1861 N.W. South River Drive Miami, Florida Prepared By Lisa H. Hammer Horticultural Consultant July 11, 2003 • • Tree Preservation and Relocation Specifications Terrazas de Miami River Page 1 of 5 1.0 DEFINITIONS 1.01 Owner shall mean Windmoor Project, LLC, or the designated representatives, B&B Development Services, Inc. Contact person shall be Alan Lester, 2600 SW 3 Avenue, Suite 730, Miami, FL 33129, (305)859-9787, ext. 109. 1.02 Contractor shall mean an individual or firm of established reputation, which is regularly engaged in, and which maintains a regular force of workers skilled in performing work as outlined in Sections 5.0, 6.0, 7.0, and 8.0 of this document. 2.0 CONTRACTOR QUALIFICATIONS 2.01 All Contractors shall be insured with Workers' Compensation Insurance as required by the State of Florida, General Liability Insurance with a minimum limit of $1,000,000 combined single limit per occurrence and proof of Comprehensive Automobile Liability Insurance. 2.02 All Contractors shall have any and all current licensing as required to perform the specified services in the City of Miami, Florida and Miami -Dade County, Florida. 3.0 WORK LOCATION AND HOURS 3.01 All specified work is located at 1861 N.W. South River Drive, Miami, Florida. 3.02 Work hours shall be in accordance with the City of Miami and Owner requirements. 4.0 CONTRACTOR RESPONSIBILITIES 4.01 All Contractors shall visit the site and inspect the trees, prior to submitting a bid. 4.02 All Contractors shall comply with all sections of these specifications. 4.03 All Contractors shall be responsible for providing all labor and materials needed to completely and accurately perform the work outlined in these specifications. Equipment and materials furnished shall be of the appropriate type, size and quantity needed to adequately accomplish the specified work. 4.04 No work is to be subcontracted without the prior written consent of the Owner. 4.05 All Contractors shall be responsible for regularly inspecting all equipment to be used on the job site and for providing scheduled preventative maintenance, so as to prevent any damage or injury to landscaping, structures or the environment. 4.06 All Contractors shall comply with all applicable local, state and federal health and safety requirements, including Occupational and Safety and Health Administration (OSHA) standards, American National Standards Institute (ANSI) Z133,1-2000 (Tree Care Operations -Safety Requirements) and State of Florida Department of Transportation (k'DOT vehicle safety and traffic control requirements). • • Tree Preservation and Relocation Specifications Terrazas de Miami River Page 2 of 5 4.07 All Contractors shall designate a competent supervisor or foreman to oversee all activities described in these specifications. 4.08 All Contractors shall be responsible for notifying Owner and for the cost and repair of any damage to irrigation systems, buildings, vehicles or other structures, properties or possessions, which occur as a result of improper or negligent activities within their respective realm of responsibility, as defined in these specifications. 5.0 SCOPE OF WORK — GENERAL 5.01 This project shall include the preservation of one kapok tree (Ceiba pentandra), two live oak trees (Quereus virginiana), one sapodilla tree (Manilkara zapota), four royal poinciana trees (Delonix regia), and one myrsine tree (Myrsine floridana), as shown on the surveys and plans 5.02 This project shall also include the relocation of 2 live oak trees and 13 royal palms (Roystonea elata), as shown on the surveys and plans. 6.0 SCOPE OF WORK— TREE PRESERVATION 6.01 A Tree Protection Zone (TPZ) shall be established around all trees which are to be preserved. The Tree Protection Zone shall be defined as the area directly beneath the canopy of the tree, with a minimum diameter equal to 1 to 1.5 feet for each inch of trunk diameter, as measured at 4.5 feet above grade. In some areas, groups or clusters of trees shall be designated as a Tree Protection Zone, as directed by the consulting arborist. Each Tree Protection Zone shall be delineated using plastic barrier fencing. 6.02 The area within the Tree Protection Zone shall be maintained in its current condition. There shall be no grade changes, bulldozing, scarifying or any other type of soil disturbance within this area. Utilities shall be located outside the TPZ. 6.03 The area within the Tree Protection Zone shall be kept fr a of vehicles and heavy equipment operation. There shall be no parking or movement of vehicles or heavy equipment within these areas. Cleaning, clearing or removing vegetation or other debris from within the TPZ shall be done manually. 6.04 The area within the Tree Protection Zone shall not be used for any type of materials storage or dumping (including wash water). 6.05 Construction and grading in surrounding areas shall not change drainage patterns within the TPZ. Excess water shall not be drained into or out of the TPZ. 6.06 There shall be no damage, wounding, or other types of physical injury made to the tree trunks, buttress roots, surface roots, limbs, branches, or other exposed parts of the tree. No signage shall be attached to the trees and no work stations set up beneath the trees. 6,07 Prior to construction activities, any tree limbs which may interfere with, or are at risk of damage or injury from, construction activities, and any tree limbs which are dead, decayed, or broken, shall be pruned following the guidelines in the most recent edition of the American National Standards Institute A-300 document. Kapok tree #15 shall require the removal of one limb approximately 12" in diameter, on the west side of the tree, at its point of attachment. Live oak • • • Tree Preservation and Relocation Specifications Terrazas de Miami River Page 3 of 5 #20 shall require the removal of one 10" limb at its point of attachment, one 6" limb at its point of attachment, both on the west side of the tree, and one dead limb on the south side of the tree. 6.08 During excavation activities all trenches and pits dug with trenchers or backhoes shall be dug 6" to 12" further away from the tree than where the final pit/trench wall will be located. Then, the area nearest the tree shall be hand -dug and any tree roots which are encountered shall be pruned using appropriate pruning tools (saws, loppers or clippers), leaving clean, smooth cuts. Trenches shall then be backfilled with sand or existing soil. 6.09 Any tree roots which are encountered during other construction or excavation activities shall be cleanly cut behind any damage, using appropriate pruning tools. 6.10 Any tree roots which are cut or damaged shall be treated with a fungicide such as Banrot, Subdue, or Aliette, mixed and applied according to label directions by or under the supervision of a Certified Pest Control Operator. 6.11 ,Structural soils, above -grade construction, or other types of materials or design methods shall be employed in the roadway areas where they are in close proximity to trees to be preserved. Grade - beam construction or similar shall be used for building footings within close proximity to trees to be preserved. 7.0 SCOPE OF WORK TREE RELOCATION 7.01 The trees and palms referred to in section 5.02, above, shall be relocated to pre -determined locations on -site. At least 6 to 8 weeks prior to tree relocation, all trees to be relocated shall have their roots pruned. The live oak trees shall be root -pruned at the edge of the existing curbing which surrounds them. The royal palms shall be root -pruned such that the diameter of each football is 4 to 6 feet (2 to 3 feet on all sides of the trunk). Root pruning shall be performed to a depth of at least 24 inches using a stump -grinder or more refined equipment such that cuts are clean, smooth, and thorough without cuts or tears in the bark, wood or cambium. 7.02 Those trees which are located on limestone soils shall be dug and relocated with the roots attached to a section of rock, without separating them, such that the roots remain intact. Those trees located in sandy soils shall be dug when the footballs are moist, and if necessary to hold them together, the rootballs shall be wrapped in burlap. It may be possible to relocate the live oaks in curbed parking lot islands using a steel plate sliding system. Root pruning depth and trenching width shall take these possibilities into consideration. 7.03 Owner shall supply irrigation to root -pruned trees 2 to 3 times per week between the time of root pruning and the time of relocation. 7.04 Two to 3 weeks after root pruning and before lifting, tree es canopies b ranch al whil be would ed treotmoves any dead, decayed, or broken branches, low -hanging restrict strapping/lifting activities. All pruning shall be performed following the most recent edition of the American National Standards Institute A-300 guidelines. 7.05 Six weeks or more after the root pruning, with the use of a backhoe or other heavy equipment appropriate for the task, rootballs, including attached rock, shall be broken free from the surrounding rock at a depth of at least 24 inches and a diameter equal to or greater than the root - pruned area. • • • Tree Preservation and Relocation Specifications Terrazas de Miami Page 4 of 5 7.06 Trees shall be lifted using a crane or backhoe which is appropriate for the size and weight of the tree, and carried directly to the site of relocation. 7.07 Trees and palms shall be lifted using fiber rope lifting straps, with their rootballs cradled with fiber rope tree slings or other appropriate materials, such that the bulk of the trees' weight rests upon the rootballs. During lifting the trees shall be balanced in an upright position with rootballs intact. Trunk straps may be used for balancing and maneuvering the trees into position, but shall not be used to lift or hold 100% of the trees' weight. Tree trunks shall be heavily padded with burlap beneath the lifting strap, and the strap shall be double -wrapped and fastened on a straight section of single -leader trunk in such a manner as to prevent slippage and subsequent wood, bark or cambium damage. 7.08 Once lifting begins, any uncut roots which become apparent around or under the rootball Sshall o asthe immediately severed with the appropriate pruning tools (saws, loppers, pruning clippers) minimize tearing. 7.09 After lifting, the trees shall not be set down again until reaching the final site of relocation. 7.10 Trees are to be set in pre -dug pits, which are approximately twice as wide and the same depth as the rootballs. Trees shall be set at or slightly above (no more than 2 inches) grade. Trees shall be backfilled using a 1:1 mixture of existing soil and 50:50 topsoil mix, thoroughly incorporated together. Trees shall be watered in during installation to prevent the formation of air pockets, which could cause settling. Organic wood mulch shall be layered to a depth of 2 to 3 inches over the top and surrounding 6 to 8 inches of the rootball. Mulch shall be not applied to, or allowed to accumulate directly against the tree trunks. 7.11 Trees and palms shall be braced and staked, using a minimum per tree of 3, 4" x 4" wooden stakes, attached to 2" x 4" wood battens, double -banded around the burlap -wrapped trunk. Nails shall be driven into the wood battens, not into tree trunks. Damage or injury to trunks shall be avoided. 7.12 Stakes and guys shall be properly anchored and shall remain in place for at least 4 to 6 months, or until the trees show adequate signs of healthy new growth. 7.13 Daily irrigation at high volume (15 to 25 gallons per tree, as per size) shall be provided by Owner for the first month after relocation. After that time, irrigation shall be provided 3 times per week, continuing at high rates, for at least 2 more months. After establishment, standard irrigation practices shall be implemented. 7.14 Live oak trees chat! have irrigation mister systems installed in their canopies, which shall be nun daily for intermittent periods throughout the establishment phase. 7.15 Final landscaping and irrigation plans shall include one to two bubbler heads adjacent to each royal palm and live oak. 7.16 After the trees' first flush of new growth, they shall be fertilized using low rates of a granular "Palm Special" fertilizer, broadcast beneath the canopy of each tree. For the first year after relocation, they should be fertilized one time each two months with low rates of granular "Palm Special" and 5 to 10 gallons of a micronutrient mixture. • • • Tree Preservation and Relocation Specifications Terrazas de Miami Page 5 of 5 8.0 CLEAN -LIP AND DEBRIS REMOVAL 8.01 All Contractors shall be responsible for the timely clean-up and removal of all debris generated by the activities specified in this document. All other debris shall be collected and properly disposed of at authorized dumping or recycling sites. Copyright CLisa H. Hammer, Horticultural Consultant, 2003 • • • Corrections to Tree List Tree No. 2 3 15 18 19 21 34 36 39 43 49 50 52 53 56 57 58 59 60 61 Correct Common Name Red Sandalwood Red Sandalwood Kapok Tree Mexican Fan Palm Sapodilla African Tulip Strangler Fig Seaside Mahoe Seaside Mahoe Seaside Mahoe Manila Palm Manila Palm Solitaire Palm Solitaire Palm Solitaire Palm Solitaire Palm Solitaire Palm Solitaire Palm Solitaire Palm Solitaire Palm Correct Scientific Name Adenanthera pavonina Adenanthera pavonina Ceiba pentandra Washingtonia robusta Manilkara zapota Spathodea campanulata Ficus aurea Thespesia populnea Thespesia populnea Thespesia populnea Veitchia merrillii Veitchia merrillii Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Ptychosperma elegans Corrections to Spelling: #s 33, 34, 40, 42, 45: Tropical Almond, Terminalia catappa #s 46, 47: Silver Trumpet, Tabebuia caraiba