Installing a bridge expansion joint - GIF

[ToolTalkBot]

Installing a bridge expansion joint.




Previously:

Mechanical forming an expansion joint - GIF
Workers between a bridge expansion joint - GIF

[Floradawg]

Why didn't they put it in originally?

[cwinn99]

These expansion joints wear out, & they can be damaged by environmental factors. Replacement is generally scheduled preventive maintenance, but sometimes, as on the Richmond (CA) bridge about a year ago, it has to be done as an emergency repair.