*Case 1.E [#p7560750] **The causes of fatigue [#i1c44c24] > Welding defects were included at the time of fabrication. **LINK [#g719aa2d] -[[Third St. Viaduct]] > -[[Third St. Viaduct]] Stop hole + Bolt splice -[[Allegheny River Br.]] > Bolt splice -[[Quinnipiac River (Defects in the butt welds of horizontal stiffener)]] > Bolt splice -[[U.S.51 Br.]] > Bolt splice -[[No. 28 County road Br.]] > Replacement