09-12-2016 Council Packet - Laserfiche WebLink

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Coniferous trees 6 -foot heightbb r-- Understory shrubs Minimum of 30 percent of required overstory trees must be coniferous 3 -gal. potted One shrub per 300 gross square feet of building footprint area or one or 18 -inch shrub per 30 lineal feet of site perimeter, whichever is greater. Ornamental 1.5 -inch bb Not required; but two ornamental deciduous trees may be deciduous trees (Caliper) substituted for one required overstory deciduous tree (maximum substitution equals 25 percent of required overstory deciduous trees) Credits for existing trees: The city council shall have sole discretion whether credit shall be granted for existing healthy trees In instances where healthy plant materials of acceptable species exist on a site prior to its development, the application of the standards in subsection (14)b of this section may be adjusted by the city to allow credit for such material, provided that such adjustment is consistent with the intent of this division. 2. A reasonable attempt shall be made to preserve as many existing trees as is practicable and to incorporate them into the site plan. 3. All new overstory trees shall be balled and burlapped or moved from the growing site by tree spade. Deciduous trees shall have a minimum caliper of 2'/2 inches. Coniferous trees shall be a minimum of six feet in height. Ornamental trees shall have a minimum caliper of 1'/z inches. 4. All site areas not covered by buildings, sidewalks, parking lots, driveways, trails, patios, or similar hardcover shall be covered with sod or an equivalent ground cover approved by the city. This requirement shall not apply to site areas retained in a natural state. 5. In order to provide for adequate maintenance of landscaped areas, an underground sprinkler system shall be provided as part of each new development, except one- and two-family dwellings and additions to existing structures which do not at least equal the floor area of the existing structure. A sprinkler system shall be provided for all landscaped areas, except areas to be preserved in a natural state. 6. Not more than 50 percent of the required number of trees shall be composed of one species. The city shall maintain a list of prohibited species, which shall not be used for landscaping. Interior parking lot landscaping. 1. All parking lots containing over 100 stalls shall be designed to incorporate unpaved, landscaped islands in number and dimension as required by the city. All landscape islands shall contain a minimum of 180 square feet. Islands which are necessary to promote the safe and efficientflow of traffic shall not be subject to the 100 -stall standard and shall be required by the city when warranted. 2. Parking lot landscape areas, including landscape islands, shall be reasonably distributed throughout the parking lot area so as to break up expanses of paved areas. Parking lot landscape areas shall be provided with deciduous shade trees, ornamental Page 5