Agenda - Parks and Recreation Commission - 09/08/1994

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of the combined diameters of the tree(s) which have been killed. For example, if four (4) trees that ar4 each five (5") inches in diame?,r are removed, then trees with a combined diameter of ,!0" [ (4 trees @ 5") x 50% --10 ] [hall be planted by the developer/builder. This combination could be one (1) tree with a 10' diameter, two (2) trees with 5" diameter, or some oth~¢r combination with a total of 10" in diameter. In addition, if the City determines that a damaged tree is dead or will probably not survive, it shall be removed by the developeffbuilder unless determined otherwise by the City. 3. Any trees required to be planted shall be a minimum of two and one-half (2 1/2") inches.in diameter for deciduous trees; or 5 (5') feet tall for coniferous trees per nursery standard measurements. 4. Any tree required to be planted shall be varied in species, shall prefer the use of species native to the Anoka Sand Plain, Big Woods, and Savanna regions of Minnesota, [lqd shall comply with current city staff, consultant, and DNR District Forester species recommendations. Required boulevard or yard trees will count towards replacement. 5. The preferred location of replacement trees is in lots from which trees have been removed. However, with City approval, replacement trees may also be planted in outlots, com)mons areas, and boulevards. City Staff may direct the developer/builder to plant a maximum of 50% of the replacement trees in parks, boulevards, trails, or other public areas within the respective benefitting Recreation District. 6. Any trees required to be planted shall be replaced if they die or appear to be in decline vdthin one (1) year of planting by the party responsible for the planting. In addition, the developer/builder shall remove the declining or dead tree. 7. The developer/contractor shall escrow 150% of the projected cost of tree replacement when conditions do not allow the trees to be planted at the time of the development or construction. VI. Tree lin0 Site Related Di~turtpances. A. Tree protection zones, specimen trees or stands of trees designated to be saved must be protected from the following damages which may occur during all phases of land disturbance and construction processes. 1. Direct physical root damage. This most frequently occurs during site clearing and grading operations where transport (feeder) roots are cut, torn or removed. 2. Indirect root damage. Most frequently, this results from positive grade changes, temporary storage of fill material, the sedimentation or erosion materials, soil compaction, and soil chemical changes. 3. Trunk and crown disturbance. These disturbances are generally mechanical in nature and are either caused directly by clearing and grading machineD,, or indirectly by debris being [cleared and failing into trees marked for protection. Soil Contamination Exposure to heat or toxic vapors Exposure to disease vectors VII. Metbo(J~ of Tree Protection.