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HomeMy WebLinkAbout91-139 a *o: • CITY OF LAICEVILLE RESOLUTION late October 7, 1991 Resolution No. 91-139 1Vlotion by Ruhmann Seconded by Mulvihill RESOLUTION APPROVING TREE PRESERVATION GUIDELINES WHEREAS, the City Zoning Ordinance and City environmental policies encourage the preservation of natural vegetation; and WHEREAS, these guidelines will assist the. City in achieving its environmental goals. NOW, THEREFORE, BE IT RESOLVED by the Lakeville City Council: Approves the attached 'Tree Preservation Guidelines. • ADOPTED by the Lakeville City Council this 7th day of October, 1991. CITY OF LAKEVILLE BY: Duane Zaun, Ma ATTEST: '1 e Charlene Friedges, City erk x x• CITY OF LAKEVILLE TREE PRESERVATION GUIDELINES - It is Lakeville's intent to protect, preserve, and enhance the natural environment of the City and to encourage a resourceful and prudent approach to the development of wooded areas. Therefore, the City of Lakeville has found it necessary and desirable to establish requirements and direction as to the preservation of trees on sites of new development. The following process for preserving significant trees shall be required of developers and builders. However, developers and builders are encouraged to preserve all healthy trees of significant value even if the trees are less than six inches in diameter. DEFINITIONS Diameter The measurement of a tree's trunk measured 4.5 feet above the ground. Drip-line The farthest distance away from the trunk of a tree that rain or dew will fall duectly to the ground from the leaves or branches of the tree. Significant • Tree A healthy tree measuring 6 inches in diameter or greater. Tree Preservation Plan A plan certified by a forester or landscape architect indicating all e significant trees in the proposed development or on the lot. e tree p eservation plan shall mciude the size, species and location of all sicant trees proposed to be saved and removed on the area of deve opment, and the measures proposed to protect. the significant trees to be saved. Tree Protection .Snow fencing or polyethylene laminar safety netting placed at the drip-line of the significant trees to be reserved. The tree protection measures shall remain in place until all grading and construction activity is terminated. DEVELOPERS 1. Developers will be required to do the following: a pPrepare a tree preservation plan which shall be incorporated on the grading b. Ensure the tree preservation plan is followed during the plan development (mass grading). c. Submit a $500 security for the preparation of individual lot tree preservation plans for each mass graded lot with at least one significant Adapted 10/7/91 • tree to be saved and for each custom graded lot with at least one significant tree. The security will be included in the development contract. 2. The tree preservation plan must be certified by a forester or landscape architect. The forester or landscape. architect shall indicate on the plan the following items: - Mass graded areas - Custom graded lots - Size, species and location of all significant trees - Identification of all significant trees proposed to be saved and significant trees proposed to be removed - Measures proposed to protect significant trees shall include but are not limited to: a. Installation of snow fencing or polyethylene laminar safety netting placed at the drip-brie. b. Placing fill against the trunk of the tree, on the root. crown and under the dnp-line of the tree shall be prohibited. c. Installation of erosion control measures. d. Prevention of change in soil chemistry due to concrete washout and leakage or spillage of toxic materials such as fuels or paints. e. Pruning of oak trees must not take place from April 15 - July 1. If wounding of oak trees occur, a nontoxic tree wound dressm~ must be applied immediately. Excavators must have a nontoxic tree wound dressing with .them on the development site. 3. During the preliminary plat/planned unit development stage review, the tree preservation flan will be reviewed according to the best available layout to preserve significant trees and the efforts of the developer to mitigate damage to sicant trees. If two (2) or more trees are preserved on each lot, re erably in the front yard of the lot), the landscape plan requirement of two two (2) inch caliper trees is waived. 4. The developer shall provide a financial guarantee as zrt of the development contract to ensure protection of all significant trees which were to have been saved but were actually destroyed or damaged. The developer shall provide a financial security for each mass graded lot with at least one significant tree to be saved and a financial security for each custom graded lot with at least one significant tree as part of the development contract to ensure tree pprotection. The financial security, ggenerally $1000 per lot, will be determined by the Community and Econornic I)evelo went Department based on the number and size of trees to be saved. The security will be included in the erosion control section of the development contract. S. After the mass grading has been completed and streets and utilities installed, the forester or landscape architect shall: a. Certify in writing to the City the tree preservation plan was followed. 2 • b. Certify in writing to the City the tree protection measures were installed. c. Indicate which significant trees proposed to be saved have been destroyed or damaged. 6. If a significant tree indicated to be saved on the tree preservation plan is destroyed or damaged, the tree replacement policy will be enforced by the City. (See attachment for guidelines on tree replacement). 7. The financial security will be released upon: 1) Certification in writing by the forester or landscape architect indicating the tree protection measures were installed on mass graded lots and tree replacement is completed, if necessary; and /or 2) The builders have posted security for the custom graded lots. The location of the trees being replaced will be determined on the individual iot tree preservation plan. BUILDERS L The City will require an individual lot tree preservation plan prepared and incorporated on the required site survey for each custom graded lot with at least one significant tree. The plan shall be consistent with the original tree preservation plan for the plat. The homeowner, builder, and the forester or landscape azchitect shall meet prior to the development of the individual lot tree preservation plan to determine the placement of the home where the fewest significant trees would be destroyed or damaged. The builder will be responsible for ensuring the tree preservation plan is followed during building construction. • On mass graded lots with at least one significant tree to be saved, builders aze required to follow the tree preservation plan for the plat. 2. The individual lot tree preservation plan must be certified by a forester or landscape azchitect and signed by the homeowner. The forester or landscape azchitect will indicate on the plan the following: - Size, species and location of all significant trees - Identification of all significant trees proposed to be saved and significant trees proposed to be removed. - Measures proposed to protect significant trees shall include but are not limited to: a. Installation of snow fencing or polyethylene laminaz safety netting placed at the drip-line. b. Placing fill against the trunk of the tree, on the root crown and under the dop-line of the tree shall be prohibited. c. Installation of erosion control methods. d. Prevention of change in soil chemistry due to concrete washout and leakage or spillage of toxic materials such as fuels or paints. e. Pruning of oak trees must not take place from April 15 - Jul~+ 1. ff wounding of oak trees occur, a nontoxic tree wound dressing must be applied immediately. Excavators must have a nontoxic tree wound dressing with them on the development site. 3 3. Builders will be required to furnish the following items for tree preservation at the time the bu~idmg permit application is submitted for all lots with at least one significant tree: a. .Security of $1000 per lot for tree protection requirements. b. Certification from a forester or landscape architect indicating tree protection measures are installed. c. Builders are liable for subcontractors which destroy or damage significant trees which were indicated to be saved on the individual lot tree preservation plan. 4. Building inspectors will monitor the tree protection measures at the time of routine uispections. 5. Prior to the issuance of a Certificate of Occupancy and release of tree preservation security, the forester or landscape architect shall certify to the Crty in writing that all the tree protection measures identified on the tree preservation plan were installed from the start of construction to the end of construction and tree replacement is completed, if necessary. • 4 ~ ' LAKEVILLE TREE REPLACEMENT POLICY Developers and builders will be required to replace the significant trees which were indicated on the tree preservation plan to be saved but ultimately were destroyed or damaged. The developer and builder will be required to replace each of the significant trees destroyed or damaged with two replacement trees. Replacement trees must consist of nursery stock and be no less than the following sizes: 1. Deciduous trees - No less than 2 inches in diameter. 2. Coniferous trees - No less than 6 feet high. Replacement trees shall be a species similar to the trees which were destroyed or damaged and can include those species shown on the following table: DECIDUOUS TREES Maples Linden (Bass Wood) Green Ash Honey Locust Hackberry Oak Ash Birch Ginkgo (male only) Kentucky Coffee Tree CONIFEROUS. TREES Fir Spruce e Canadian Hemlock European Larch Cedar Replacement trees shall not belaced on easements or street rights-of--way. If tree replacement is required on the individual lot because the builder destroyed or damaged a tree which was to be saved, the forester or landscape architect shall determine where the replacement trees shall be installed. 5