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<br />owners record a joint access and maintenance agreement with the county recorder’s <br />office. <br />2. Width and Size <br />a. Dwelling, Single -Family. <br />The total area within the front yard setback area of a lot improved as a driveway shall <br />not exceed forty (40) percent of the front yard setback area. <br />b. Dwelling, Two- or three-family. <br />The total area within the front yard setback area of a lot improved as a driveway shall <br />not exceed fifty (50) percent of the front yard setback area. <br />c. Administrative Deviations <br />The Zoning Administrator may administratively approve deviations of up to ten (10) <br />percentage points above the maximum standards in subsections (a) and (b) if necessary <br />to provide safe and functional access due to unique lot configuration, topographic <br />conditions, or other site constraints. <br />C. Materials and Surfacing <br />1. Required Surface: <br />(a) Bituminous asphalt <br />(b) Concrete <br />(c) Pavers (interlocking brick, concrete, permeable pavers) <br />(d) Other materials as approved by the City Engineer or Zoning Administrator. <br />2. Gravel or Crushed Rock <br />Gravel, crushed rock, or other loose surfacing materials are prohibited for all new or <br />expanded driveways and parking areas. <br />3. Permeable Options <br />Driveways and parking areas are considered impervious surfaces for the purposes of this <br />ordinance. However, if permeable paving systems are proposed, partial credit toward <br />impervious surface calculations may be approved at the discretion of the City Engine er. <br />Applicants seeking impervious surface credit must submit the manufacturer’s specification <br />for the proposed permeable system and soils data, infiltration rates or other information as <br />requested by the City Engineer to verify the functionality of the sys tem. Credit may be <br />reduced or denied if site conditions, soils, or installation methods are determined to be <br />unsuitable for effective infiltration. <br />4. Drainage and Runoff <br />Driveways must be graded and constructed to direct runoff toward the street, drainageways, <br />or approved stormwater facilities. Driveways shall not be designed to concentrate runoff <br />onto adjacent properties or cause erosion, ponding, or other nuisance draini ng conditions. <br />5. Maintenance <br />Driveways shall be maintained in good condition and repair at all times. Driveway surfaces <br />shall be free of potholes exceeding three (3) inches in depth or twelve (12) inches in <br />diameter. Cracks exceeding one (1) inch in width, or any cracks resulting in v ertical <br />displacement of the surface, shall be repaired. No driveway surface shall result in the