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Urono, MN C;ode of{hdinances Page 6 of 10 <br /> Ornamental deciduous 1.5-inch bb(Caliper) Not required;but two ornamental deciduous trees <br /> trees may be substituted for one required overstory <br /> deciduous tree(maximum substitutfon equals 25 <br /> percent of required overstory deciduous trees) <br /> �redits for existing trees:The city council shall have sole discretion whether credit shall be granted far existing <br /> healthy trees <br /> In(nstances where healtt�y plarrt materials of acceptable specfes exist on a site prior to its development,the <br /> application of the standards in subsection(14)b of this section may be adjusted by the city to allow credit for such <br /> material,provided that such adjustment is consistent with the Intent ofthis dlvislon. <br /> 2. A reasonable attempt shall be made to presenre as many existing trees as is practicabfe and to incQrporate them <br /> into the sfte plan. <br /> 3. AEI new overstory trees shall be balled and burlapped or moved from the growing site by tree spade.Declduous <br /> trees shall have a minimum caliper of 2Y4 inches.Confferous trees shall be a minimum of six feet in height. <br /> Ornamental trees shall have a minimum caliper of 1Yz Inches. <br /> 4_ All site areas not covered by bulidings,sidewalks,parking lots,drfveways,trails,patios,or similar hardcover shall <br /> be covered with sod or an equivalent ground cover approved by the ciry.This requirement shall not apply to site <br /> areas retained in a naturaf state. <br /> 5. In order to provide for adequate maintenance of landscaped areas,an underground sprinkler system shall be <br /> provlded as part of each new development,except one-and two-family dweilings and addiUons to exlsting <br /> structures which do not at least equal the floor area of the existtng structure.A sprinkler system shall be <br /> provided for all landscaped areas,except areas to be preserved in a natural state. <br /> 6. Not mo�e than 50 percent of the requlred number of trees shall be composed of one species.The city shall <br /> malntaln a Ilst of prohibited species,which shall not be used for landscap9ng. <br /> c. lntierior parking Iot londscaping. <br /> 1. All parking lots containing over 100 stalls shail be deslgned to incorporate unpaved,landscapeci islands in <br /> number and dimension as required by the city.All landscape islands shall contaln a minimum of 1 SO square feet <br /> Islands which are necessary to promote the safe and efficient flow af traffic shall not be subject to the 100-stall <br /> standard and shall be required by the city when warranted. <br /> 2. Parking lot{andscape areas,including landscape islands,shall be reasonably distr(buted throughout the parking <br /> lot area so as to break up expanses of paved areas.Parking lot landscape areas shall be provided with declduous <br /> shade t�ees,omamental or evergreen trees,plus ground cover,mulch andlor shrubbery as determined <br /> appropriate by the planning commfss(on.Park(ng lot landscape trees shall be provided at the rate of one tree for <br /> each 15 surface parking spaces provided,or major fraction thereof.Parking lot{andscaping shall be contained in <br /> planting beds bordered by a ratsed concrete curb or equivalent approved by the pianning commisslon. <br /> d. Molntenante of landscaping.The owner,tenant and their respective agents shall be jolrttly and severally responsible <br /> far the maintenance of all landsca�ing In a condttlon preser�ting a healthy,neat and orderly appearance and free <br /> from refuse and debris.Plants and ground cover which are requ(red by an approved site or landscape plan,and <br /> which have died,shall be replaced within three months of notification by the c'rty.However,the tfine for compl(ance <br /> may be extended up to nine months by the city in order to allowfor seasonal or weather conditions. <br /> e. Retoining walls. Retalning walls exceeding four feet in height,and staged walls which cumulat(vely exceed 16 feet in <br /> height or involve more than four tlers,must be constructed fn accordance wtth plans prepared by a registered <br /> engineer or landscape archReR. <br /> f. Landscaping performance securltyrequlred.When screening,landscaping or other similar improvements to property <br /> are requlred by this division,a letter of credit shall be supplled by the owner fn an amount equal to at least 1;�times <br /> the value of such screening,landscapfng o�other improvements.The letter of credit shall be condltloned upon <br /> reimbursement of all expenses incurred by the city for engineering,legal,contracting or other fees in connection with <br /> making or completing such Improvements.The letter of credit sltall be provided prior to the(ssuance of any bullding <br /> permit and shall be valid for a period of time equal to two full growing seasons after Che ciate of installation of the <br /> landscaping.The city may accept some ather form of securlty In lieu of a letter of credit in an amount and uncfer such <br /> condttfons that the city may determine to be appropriate.If construction of the project Is not completed within the <br /> about:blank 4/14/2016 <br />