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We have a 26’ deck that is being overlaid and we are using steel TBR. The issue that has come up is how to best terminate the steel TBR off the bridge. The first attachment shows a proposed flaring of the steel TBR and the joint connections to allow a flare. The Outdated standard shows a situation where we used concrete TBR to flare away from the traveled lane in the past. The ends of the bridge will be signaled and posted at 35mph. I believe the first choice is to continue the steel TBR off the bridge and flare it from the traveled lane as shown in the third attachment. The flare shown in the drawing was developed from a flare for concrete TBR. Do you believe this flare would cause any concerns if we used it in this situation? Any other concerns or thoughts on the subject would be great.

Thanks,

I believe we answered a previous question for IA last year that was related to this item, but not specific to the steel TBR.

https://mwrsf-qa.unl.edu/view.php?id=1252

I think the recommendations apply to the barrier you have shown here as well in terms of the flaring of the barrier outside of the clear zone and termination recommendations. I don’t believe that the flare rates would change between the PCBs and the steel H-barrier sections.

Take a look at this and let me know if it answers your question or if you have a separate issue and I misinterpreted your email.

Thanks