The cache is not located at the above coordinates. In order to get the correct location you must complete the Journey to the Top of the Bridge adventure lab and collect the 5 LETTERS that will spell the KEYWORD that, when entered into the Certitude geo-checker, will reveal the information needed to find the BONUS cache.
Don't know how an adventure lab works? Click on this link to download the Adventure Lab player app. Sign in to the app with your geocaching.com account username and password. Here's a 4 minute video that explains how to use the app.
You can validate your puzzle solution with certitude.
