Structures Field Review Site 15A 2014Rowan, Bridge on Old Union Church Road over Town Creek


3-span prestressed concrete girder bridge; noted that the joint openings at each end bent are significantly wider at the bridge deck surface, and get narrower with depth; one possibility that was mentioned was settlement of the slope protection causing rotation of the end bents

Action Item:

Review the contract plans to determine the detailed formed joint opening size; check the adequacy of the opening size for the bridge length



Noted erosion under one end bent cap corner; also noted that the distance from the end of the end bent cap to the first HP pile was approximately 6 feet (which matches the details in the contract plans); this distance is typically around 1.5 feet


 The 3-bar metal rail had been impacted; noted that the concrete break-out that occurred around the rail post was very similar to that predicted in ACI-318 Appendix D





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