Sometimes we have seem that users are unable to create a bridge or some bridge elements in OBM v10.09. To resolve the issue please try the following:
You may have 10.0.0_1 folder. You can delete the “civil_commands” folder from there too.
If deleting above folder does not resolve the issue please delete all the folders in “C:\Users\username\AppData\Local\Bentley\OpenBridgeModeler” and try again.