*Case 1.H [#k9fcc4f9] **The causes of fatigue [#q8c5e582] > Welding defects were included at the time of fabrication. **Approaches to repairing and retrofitting [#b91b2e08] > Modification of connection detail. > **LINK [#ce00e970] -[[The central Artery of I-93]] -[[I-93]] > Stop hole and Wide flange detail -[[I-470 and I-79 tied arch Br.]] > Stop hole and Angle connection -[[Ft. Duquesne Br.]] > Bolt splice -[[T-type steel pier on Hanshin Expressway]] > Plate connection -[[Section L-2C]] > Grind out and Hole saw -[[Gulf Outlet Br.]] > Crack removal