Summary of Driveway Design Requirements form Ordinance 181-D (1) Spacing - Access driveways or encroachments shall be spaced according to the following: Minimum Distance Street Type Minimum Spacing from Intersections Local (Residential) Sideyard Setback 50 feet (Max. dist.10')*** Local (Rural) 35 feet apart 50 feet Collector 50 feet apart 75 feet Arterials 75 feet apart 115 feet *** Driveway to be setback from side property line (minimum distance required) the same distance as that required on the official subdivision plat for building setbacks. A minimum distance of 10 feet is required if the subdivision plat requires sideyard setbacks greater than 10 feet. The minimum spacing of driveway encroachments in residential subdivisions shall be measured at the intersection of the front and side yard property lines. In no case shall a driveway encroachment cross an imaginary line which is projected along the sideyard property line to it’s intersection with the edge of the County Road. The minimum spacing of all other driveway encroachments shall be measured from nearest edge of driveway to nearest of driveway. In no case shall a driveway encroachment cross an imaginary line which is projected along the side yard property lines to it’s intersection with the edge of the County Road. The minimum distance from intersections shall be measured from the edge of the County Road to the nearest edge of the driveway. (2) Driveway Alignments All driveways shall be within 20 degrees of being perpendicular to the centerline alignment of the County Road for the first 20 feet from the edge of road. (3) Driveway Grades (Applies to all areas of the County except Pinebrook. See Standards below) The maximum average grade of the first twenty feet of a driveway which has a total length greater than 100 feet shall not exceed five (5) percent. The maximum average grade of a driveway which has a total length of 100 feet or less, shall not exceed ten (10) percent. The maximum average grade of any driveway beyond the first twenty feet shall not exceed ten (10) percent. Up to twelve (12) percent grades may be allowed for short distances which shall not exceed a total of 250 feet when approved by local Fire District. Driveway grades shall be measured along the center line between the following points to determine compliance with this section. 1) Difference in Elevation between edge of road/top of curb break (E1) and at 20 feet (E2) from edge of road divided by 20 feet ( (E1 - E2) ÷ 20 x 100 = %) 2) Difference in Elevation between a point at 20 feet from the road (E2) and the grade break outside of the garage (E3) divided by the distance (D) between the two points ( (E2 - E3) ÷ D x 100 = %) Pinebrook Consent Agreement allow for driveway Grades at a maximum of 15%. Use ( (E1 - E3) ÷ D(total Distance od Driveway) x 100 =_____% 2 3 1 The driveway shall be graded such that water draining off the driveway does not flow onto the County Road and is diverted into a roadside ditch or gutter. (4) Driveway Widths The minimum width of a driveway which lie within the County Road right-of-way shall be as follows: Minimum Flare Street Type Minimum Width (Each Side) Local (Residential) 12 Feet + 2 Feet Local (Rural) 12 Feet + 2 Feet Collector 12 Feet + 4 Feet Arterials 14 Feet + 8 Feet The maximum driveway width is 25% of street frontage, or as may be required by the applicable Development Code. Items reviewed on site plan: Driveway Staking Inspection Driveway Encroachment Permit Fee and/or Completion Bond Required Encroaching on Side Yard Setback (10 foot minimum) Show Slope on Driveway(Elevation at Street, 20' Grade Breaks, and Garage Floor or Parking Pad) Driveway needs to be within 20o of Perpendicular to the Centerline of Road Storm Water Pollution Prevention Plan and Erosion control-Revegetation Plan Required.