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W-beam Adjacent to Slopes with 11' long Posts

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

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


Response
Response

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.

 

https://www.roadsidepooledfund.org/placement-of-guardrail-on-slopes-phase-iii-603221-2/

 

Thanks

Date March 22, 2018


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