I’ve been working on putting together scale drawings of the Rock Creek trestle on the Georgetown Branch for several months now in my free time. I’m getting very close to have a final working set of plans that I can use to build my HO scale model of the bridge and wanted to share a quick screen shot to see what it looks like.
This is very much a work in progress and the drawing reflects that. There have been many challenges with this project. Some of the big ones include the lack of images of the trestle from the time frame that I model; 1945-55. Another includes the various versions this trestle had throughout its life. It was originally built in the late 18th century, rebuilt some time in the 1920s, and again at some point in the 1950s. In the 60s it burned, in the 70s half of it collapsed. It was rebuilt, burned again in the 1980s rebuilt in the 2000s, reopened for pedestrians and finally in 2019 it was demolished. I took as many photos of it as I could (found in the Gallery on the main site) but due to the many modern additions, it’s nearly impossible to determine what was original and what was new.
I am doing my best. There is a lot of staring at photos for a very long time, trying to determine where bracing was placed, what height it was located at and what angle is correct. I’ve got about 3 photos that date back to the 40s and 50s. None are particularly good. I have a rough plan of the structure made by the B&O but it is missing many, many measurements. It’s a good starting place, and will give me a “good enough” on many measurements, but I wish I had taken more when the structure was still open to pedestrian traffic. Oh well. More to come, soon.