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Roadside Topography and Drainage Features

Roadside Topography and Drainage Features. RDG Chapter 3. Balance Two Needs. Modifying the Inlet Design. Low speeds: 30” between safety bars on sideslopes as steep as 1:3 Single pipes up to 30”: cut to match the sideslope. Modifying the Inlet Design: Larger Drainage Structures.

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Roadside Topography and Drainage Features

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  1. Roadside Topography and Drainage Features RDG Chapter 3

  2. Balance Two Needs

  3. Modifying the Inlet Design • Low speeds: 30” between safety bars on sideslopes as steep as 1:3 • Single pipes up to 30”: cut to match the sideslope.

  4. Modifying the Inlet Design: Larger Drainage Structures

  5. Drainage Case Studies

  6. Paved ditch in the median

  7. Connect the pipes

  8. Shielding option

  9. Now it is your turn… Case 1

  10. Recommended Solution

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