On a family trip with my parents back in the early 1990s, we drove through Clear Creek Canyon. Upon exiting a tunnel, we stopped to along the side of the road to get a look at the C&S roadbed that clearly wound around the mountains that the road tunneled through. We were treated to a neat surprise because when we looked over the guardrail we saw an abutment of a C&S trestle.
I took several photos of this abutment. It wasn't until years later that I figured out how to identify which specific trestle it once supported. By looking above the roadbed I noticed a very distinctly shaped rock formation rising up to the left. I was then able to identify this formation in old C&S and Colorado Central photos.
The abutment, then, belongs to what once was Elk Creek Bridge No. 19, named for nearby Elk Meadow. It was built in 1872 as a wooden trestle. The track is on a 3 percent grade, then is level on the bridge, and returns to 3 percent as the road heads toward the west including Forks Creek and beyond.
On the side I am standing on, there once was a section house, a pump house, a handcar, a stone cellar, and water tank. On the 9th of July, 1907, a deluge took out the original bridge and it was replaced with an iron one.
I also took a photo of what appears to be a small bridge. I don't know for sure which one it is. My guess, based on it's small size, is that it is bridge No. 18. This was 8 1/2 miles west of Golden.
The third photo I have shows the rockwork along Clear Creek on the grade headed east from Elk Creek bridge.
The fourth and final photo I took that day shows what I perceived to be old railroad ties in Clear Creek. I have no idea if a wooden tie would remain unrotted after all those years, so it is not for sure that these are ties at all.
Historical details above and the b&w photos are from "Colorado Central Rail Road" by Abbot, McCoy, and McLeod.