NS - Octoraro Creek Viaduct
looking west
Photo from singlemalt-capebreton-norvellhimself
License: Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA)
View this photo at singlemalt-capebreton-norvellhimself.blogspot.com
BH Photo #456035
The closest I can find is that this portion of the Columbia and Port Deposit Railroad was completed in 1877.