Bridge Mod EDITED

1
Hello!
Im wanting to use the bridge mod on our server.
Which files specifically should we back up prior to using?
<s>How do I locate the GeoId numbers for a specific area?</s>
Okay I see how the GeoIds works with a bit of tinkering.
Owner would like to know if these bridges can be used across land as well?
To create a road system?
Thanks