Hennepin County

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PROJECT QUESTION: The specs and plans say the PTFE material must be recessed into the plate on the cap for half its thickness and glued. If the plate spans the entire top of the cap, does this essentially mean the cap is 0.125-inch shorter? What recess is it referring to?

Question: The specs and plans say the PTFE material must be recessed into the plate on the cap for half its thickness and glued. If the plate spans the entire top of the cap, does this essentially mean the cap is 0.125-inch shorter? What recess is it referring to?

Response: No, cap heights will not change. The 0.25-inch thick PTFE sheet should be recessed into the S.S. plate by 0.125 inch. See details on plan sheets B94 and B116A. Sheet B116A will be revised to clarify the recess is 0.125 inch from top of cap beam plate to bottom of PTFE recess.