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(1) All parking lots designed for six (6) or more parking spaces shall provide landscaping in accordance with the provisions of this Section. Parking lots designed for five (5) or fewer parking spaces shall not be required to provide landscaping other than yard area landscaping and landscaped buffer requirements as specified in other sections of this Chapter.

(2) Parking areas shall be landscaped at a rate of at least forty (40) square feet of landscaping per off-street parking stall. Landscaping areas located along the perimeter of a parking lot (beyond the curb or edge of pavement of the parking lot, up to a depth of ten (10) feet) may be included toward satisfying this requirement. Deciduous trees shall be planted within said parking area landscaping in a manner such that, at maturity of said trees, at least fifty percent (50%) of the paved surface area of the parking area will be shaded when the sun is directly overhead during the summer solstice.

(3) Landscaped areas shall be improved in conformance with the following requirements:

(a) Interior landscape design shall meet one (1) of the following options and must be designed to provide fifty percent (50%) tree canopy coverage within twenty (20) years of planting:

(i) Landscaped strips perpendicular to the parking spaces with a minimum width of seven (7) feet shall be required in front of or between rows of parking spaces, except when using vegetated drainage swales the minimum width shall be eight (8) feet; or

Figure 1. Landscaped Strips

(ii) Landscaped islands with a minimum width of seven (7) feet parallel to the parking spaces at a spacing of every five (5) stalls shall be required.

Figure 2. Landscaped Islands

(b) Two (2) feet of a parking space may have a clear overhang and count toward the required length of the parking space.

(c) Landscaped areas shall be sloped concavely to allow storm water infiltration.

(4) The plants used to improve the landscape areas defined above shall conform to the following:

(a) Primary plant materials used in the interior parking lot landscaping shall be deciduous shade trees.

(i) Ornamental trees, shrubbery, hedges, and other plants may be used to supplement the shade tree plantings in perimeter planting areas, but shall not be the only plants used in such landscaping.

(ii) Only tree species identified in the City of Provo Tree Selection Guide in the Class II list shall be planted in parking lot landscaping unless otherwise approved by the City Forester.

(b) Drought-tolerant species of turf are encouraged.

(c) Sub-surface irrigation is encouraged.

(d) One (1) shade tree shall be provided for every four (4) parking spaces; and

(i) When low impact development infiltration is infeasible (according to the Storm Drainage System Design and Management Manual, Chapter 11), the area of LID designs with underdrains or impermeable liners may be credited towards the required numbers of trees at the rate of two hundred (200) square feet of LID area equal to one (1) tree; up to fifty percent (50%) of the number of required trees.

(e) Interior parking lot landscaping area shall be planted with ground cover at a density that will achieve forty percent (40%) cover within two (2) years.

(5) Six (6) inch by six (6) inch minimum poured concrete curb controls with drainage inlets or parking stops shall be installed around all required landscaping within the interior of parking lots for the protection of the landscaping.

(Rep&ReEn 1999-34, Rep&ReEn 1999-61, Am 2012-20, Am 2015-12, Am 2020-14, Am 2022-07, Am 2023-20)