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Draft Chapter 18.28 Tukwila Urban Center (TUC) District <br />c. The slope of off street parking spaces shall not exceed 5 The slope of entrance and exit <br />driveways providing access for off street parking areas and internal driveway aisles without <br />parking stalls shall not exceed 15 <br />3. Surface <br />The surface of any required off street parking or loading facility shall be paved with asphalt, <br />concrete or other similar approved material (s) and shall be graded and drained as to dispose of <br />all surface water, but not across sidewalks. <br />b. All traffic control devices, such as parking stripes designating car stalls, directional arrows or <br />signs, curbs and other developments shall be installed and completed as shown on the <br />approved plans. <br />c. Paved parking areas shall use paint or similar devices to delineate car stalls and direction of <br />traffic. <br />d. Wheel stops shall be required on the periphery of parking lots so cars will not protrude into the <br />public right -of -way, walkways, off the parking lot or strike buildings. Wheel stops shall be two <br />feet from the end of the stall of head -in parking. <br />4. Setbacks and Perimeter Landscaping <br />a. Surface parking lots shall setback a minimum of five feet from any back -of- sidewalk, open <br />space, or building facade. The setback shall be designed and planted with: <br />(1) 1 shrub per 4 linear feet of property line, excluding curb cuts <br />(2) Sufficient live groundcovers of varying heights, colors and textures to cover, within 3 <br />years, 100% of the yard area not needed for trees and shrubs. Groundcover must be <br />planted with a minimum spacing of 12- inches on center for 4 -inch pots and 18- inches on <br />center for 1 gallon pots. If grass is being used as the groundcover, a 3 -foot diameter ring <br />of bark mulch is required around any tree. <br />b. Surface parking lots shall be buffered from adjacent residential development with Heavy <br />Screening in the side and rear setback areas <br />5. Interior Parking Lot Landscaping <br />a. For surface parking lots adjacent to public or private streets, a minimum of 20 square feet of <br />interior parking lot landscaping is required for each parking stall. In the workplace district, a <br />minimum of 15 square feet per stall is required for warehouse and light industrial uses. <br />b. For surface parking lots located behind buildings or otherwise screened from public or private <br />streets or public spaces, a minimum of 10 square feet of interior parking lot landscaping is <br />required for each parking stall. <br />ZADCD n Clerk's \PC Laserfiche Packet \5 -24 -12 PC Packet \FINAL PC BOOK2_5.18.12_clean.docx Page 67 5/18/2012 <br />79 <br />