This is a little multicache that I just had to place as I was so bored waiting for HikerT to show up.
So you'll have to blame her...
At Stage 1 or the posted coordinates:
Enter into the certitude geochecker all characters that exactly as they are stamped onto the bridge's specification plague without any spaces.
You can validate your puzzle solution with certitude.
At Stage 2:
Before you have a seat find the name of the couple and enter it into the geochecker with only letters and no spaces.
You can validate your puzzle solution with certitude.
At Stage 3:
Before you have a seat find name of the remembered person and enter it into the geochecker with only letters and no spaces. Use all three names.
You can validate your puzzle solution with certitude.
Final:
Now off to the final ya go, without passing "GO" and without collecting $200... LOL!!!