Denis Shanahan, Curaheen, Rosscarbery, Self Taught Engineer on Blue Ridge Tunnel, USA, 1850s and Other Major Projects

Denis Shanahan, a first generation Irish immigrant whose largely self-taught engineering skills brought him recognition as a keen problem solver during construction of the Blue Ridge Tunnel and other tunnels throughout the Albemarle County region.

https://en.wikipedia.org/wiki/Blue_Ridge_Tunnel
http://www.virginiaplaces.org/transportation/blueridgetunnel.html


