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Chapter 15

Site Plan Layout. Chapter 15. Driveway style and Slope Design Considerations. Minimum lawn slope of 5% for first 10’ (5/8” per foot) Minimum concrete slope of 2% (1/4” per foot) Single-car driveway at least 10’ wide 12’ minimum for RV pad if you want to step on cement

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Chapter 15

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  1. Site Plan Layout Chapter 15

  2. Driveway style and Slope Design Considerations • Minimum lawn slope of 5% for first 10’ (5/8” per foot) • Minimum concrete slope of 2% (1/4” per foot) • Single-car driveway at least 10’ wide • 12’ minimum for RV pad if you want to step on cement • 14’ if you want to be able to walk around car • Double-car driveway at least 18’ • Minimum turn radius of 15’ for a driveway

  3. Car & Truck Sizes

  4. Road/ Driveway Design • Curb 6” • Gutter 12” • Park Strip varies (4’) • Sidewalk varies (4’) • Approaches from Road (24”) • Cannot encroach property line

  5. Setbacks • Front 20’ • Rear 15’ • Sides 4’ • Street Side 20’ • Buildable Area • PUE

  6. Site Design Considerations • Do not encroach on public utility easements (property right-of-way) • Must lie inside of setback requirements set by city • Follow basic grading rules • Nothing over 2:1 Slope • Design retaining walls to minimize erosion and maintain a level lawn • Rock • Cement

  7. How are boundary (Property lines) labeled? • Bearing and Distance • The Delta angle () is the included angle of the curve if the boundary is not straight • If it is a curve the R (radius), L (length of arc), bearing of arc center. • What do we need to layout home?

  8. Steps in Site Layout • Select the proper paper size and scale (Letter) • 1:20 for most lots up to 1/3 Acre (14,520 square feet) • 1:30 for lots up to ½ Acres (21,780 square feet) • Lay out the site plan based on a given plat or legal description using construction lines • Draw only the outline of the floor plan/ foundation plan (Show cantilevers) • Include setbacks, sidewalks, and other features • Typically you can copy and rotate existing drawing from engineer if you request it.

  9. Steps in Site Layout • Add dimensions and elevations • Draw reference rectangle around largest dig out possible • Dimension to overall box to locate on lot from each corner • Label important features • Add north arrow, legal description, title, scale, client’s name, and other pertinent information

  10. Drawing your Site Plan • Refer to DGET 1360 Templates • Open Template and save to your drive • Has layers, text, etc. to enable you to match properties from example • Move example to side and use match properties • Make sure your lot is rotated to show street on the bottom and one of the property lines at 90 degrees • Use Plot Plan Layout Steps • Example?

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