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Transition Replacement Posts

State SD
Description Text We would like to use the Wyoming transition to two-tube bridge rail design, but we would like to use wood posts instead of the used 6'-6" W6x9 steel posts used in the design. Is there an acceptable wood post substitute that can be safely used in this transition.
  • Guardrail
Other Keywords Transition
Date July 2, 2007


I have some answers for your transition post replacement question. You noted that the Wyoming transition to 2 tube bridge rail used 6'-6" W6x9 steel posts and you wanted to know what the equivalent wood post would be. The steel posts in question were 6'-6" long with an embedment of 49". It should be noted that the embedment is a little higher than expected due to the use of different blockouts to reduce snag.

The Wyoming transition to 2 tube bridge rail is based off of our previous Iowa transition design. This design was made with both steel and wood post options. Thus, we believe that you can substitute 6"x8" wood posts in the design safely. The wood post used in the Iowa design that you should substitute into the Wyoming design is a 6"x8"x7' long wood post. We believe that this should work.

Date July 2, 2007

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