Talk:Shoulder Surface

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I am looking for information on A3 shoulders, when and where to use them and the link to the special sheet.

Dan Tschirgi: Although the A3 shoulder has been in use for some time, there has not been approved guidance to support its useage. The needed guidance is now finally being developed and is expected to be on the next ballot dated approximately 1/1/09, to be issued by 2/1/09 (including the needed link to the special sheet). In the meantime please contact your Design Technical Support Engineer, the Pavement Team, or the Engineering Policy Group for additional information.