It must have been a very impressive site to see, and the views afforded along the viaduct to train passengers must have been magnificent. As the trains became heavier, the structure became unsafe. So to support the heavier loads, the valley was filled in with sand and gravel, burying the entire trestle and preserving it intact. Even though it is easy to see pictures of what the viaduct looks like today, I needed to see it for myself. Here's what I found.
Lyman Viaduct, Colchester, CT
I know long time residents of Connecticut know all about this, but I find this fascinating. More pictures along the viaduct will be posted in the coming days.