In the distance, as in this picture from a few months ago, you can see the heavy industry that was still active on Belle Isle at the time, including (according to the sign), Old Dominion Iron and Steel as well as Adamson Co. Inc.
Note the old Lee Bridge in the distance on the right (it wasn't torn down until the late 1980s), and the fairly massive structure behind the bridge that's nearly hidden. The skeletal remains of part of this building still remain today on Belle Isle. Parts of the stone foundation of this bridge still exist in the James River today, although a few have been washed away.
Click the photo below for the high resolution image.
Photo courtesy of VCU Libraries