Carroll Ave. Bascule Bridge Study

We're at Wolf Point looking northwest towards the north branch of the Chicago River. The Carroll Ave. Bridge, not expecting rail traffic anytime soon, is forever fixed in the raised position.
Taking a few steps back allows us to frame the bridge against the backdrop of Chicago's buildings. The bridge was the gateway of CNW's Navy Pier line and hasn't seen traffic in over two years.
Swinging around over the Kinzie Ave. bridge to the east bank allows us to take a look at the massive counterweight.
A closeup shows that the 1960's era CNW advertising is still visible. Compare with Tom Burke's shot from 1984 and Mark Kolodny's from 1991.
Directly behind us is the start of the long underground run to Navy Pier. This is a fascinating stretch of railroad that once was very busy.