Here are a few photos of the old alignment of US 6 over Beaver Creek.
The top photo is of Old Lake Road looking east from its intersection with Oak Point Road. As you can see, the road slopes down in the distance. (It is also a private drive, and my short stop to take the photograph attracted the attention of a resident. He came down his driveway to presumably tell me to scram.)
The second photo is of Old Lake Road winding down towards the creek. I took this photo looking south.
The third photo is a slightly wider angle shot showing the road leading to a pic-a-nic pavilion at the far right of the photo.
The bottom photo (from my car window) shows where the bridge was. It ran from the burgundy deck with the white railing on the left to the pic-a-nic pavilion on the other side of the river. You can still see part of the old support structure on both sides of the river.