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W-beam Adjacent to Slopes with 11' long Posts

State NE
Description Text This AASHTIO training refers to 11’ posts

Where was this tested?
  • Guardrail
Other Keywords Slopes
Date March 21, 2018
Attachment slopes.png


I don’t believe that this has been tested. This comes from the Washington DOT standards. TTI is currently looking into guardrail on steeper slopes, but the project is not finished.


I would not recommend installations as shown with the 11’ posts on steep slopes. Case 5 has not been tested either. Case 4 was evaluated to MASH at TTI.





Date March 22, 2018

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