This is actually just the approach to the Queens side of the bridge that leads to Rikers. You're not allowed to walk over, but you can take the bus to visit an inmate, or even marry one.
I wonder what word preceded "establishment".
Day 203
You Are Entering Rikers Island
July 20th, 2012
Perhaps it was “installation” .. http://assets1.bigthink.com/system/idea_thumbnails/39945/original/Rikers_Island.jpg?1314470465
Good find! Although I was hoping it would be something like “hoosegow”.
lol…