Well that was then, before the gate blocked you. Yes this bridge was not always open to the public closed off on both sides you'll find the gates re-opened. So you'll only have to repeat your steps again but in the opposite direction maybe ? Now you have the freedom to start where you want to.
Next closest Wherigo's : L.L. Skool Daze (Details: Archived) , Wh'Ayr-I-Go (Details) , these 2 I saw on my first search back as early as 2011 when I was getting involved with Geocaching. But then two more arrived later on. App-Y Hour (Details) , Egghammer's Victoria Park Adventure (Details) Just Gibberish to confuse you !
So, Gillmoreski & I, figured we could create our own.
Review his first ! or 2nd first! And download your Wherigo cartridge here for this cache.
When you visit the site, you'll find that Wherigo's have builders that you can download from their site, good luck with that, but the latest version did not work for us, so I used their older version 1.21. **** ect ... that I managed to download at some time or another. The program crashes every once and a while, but you have to install some windows patch that makes it all work (.NET Framework 3.5 on Windows 8.1 and Windows Server 2012) it all gets confusing hence the hours I spent to create one, I can see I will eventually delete it after I am done. Having installed the file I used "setup Wherigo.exe" last modified July 3 2014 , I used it to create Gillmoreski's (original 1st Wherigo) , then updated the archive to the Redux version.
The Urwigo APP has a translated English version, which worked best for us.
Although this may not be an average tell tale story , you might find the fictional story about G & K's adventure on creating a Wherigo quite comical. But first we need to know the different formats and conversions as Wherigos may differ from what we are use to using on our GPS units ... then it get's worst. Finding one is much easier then building one I tell you. Literally I found & learned on the fly , and then remembered from my old geography books years ago, that the coordinates of the earth was described in degrees, hours, minutes and seconds. Meaning a division or multiplication of 60. But I will not bore you with something I don't totally understand myself with today's new learning's.
Normal GPS Coordinates ?
In this self taught course of oh about +3 weeks, reverse engineering another cache I am thankful to MMSM for her Wherigo file and their suggested website to create them (wherigo.rangerfox.com) . But found it of the two demo's I picked, I was limited with the online web builder to it's functionality as the other was more advanced, I just had to learn how to use it. If there is one thing I must say , "Save Often" !
Advice from 
Egghammer , I might just curse him at the same time, because he is probably the cause of my frustration, but I decided to create two of them anyway. His suggested a website called (earwigo.net/WWB/) . But once I got set up, the W/O (website owner) granted me a login username/password to which I eventually created this Wherigo file, online. The user interface is awesome, if you know how it works that is.
And now the story begins. But without a doubt, although technology supersedes me, I shall not prevail adding notes (Written logs) to help others whom may want to learn.
What's next ?