Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910, Start/End Papers The New York Tunnel Extension of the Pennsylvania Railroadby VariousRead nowAdd to libraryLanguage: en · 299 downloads on Project GutenbergCivil engineering -- PeriodicalsRailroad tunnels -- Design and constructionTAIn: Category: Engineering & Technology · Category: Reports & Conference ProceedingsPublic-domain ebook sourced from Project Gutenberg #43055.