Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910, written by Bertram Henry Majendie Hewett, offers a detailed look into a groundbreaking construction project. The main focus of the scientific document is on the New York Tunnel Extension of the Pennsylvania Railroad, specifically the engineering feats behind the North River Tunnels. The document presents a detailed design, construction methods, and challenges faced while building the tunnel under the Hudson River, connecting New York City and Weehawken, New Jersey. The information is broken down into four key areas: Shafts, Plant, Land Tunnels, and River Tunnels, providing a comprehensive overview of the innovative techniques used to complete this vital piece of infrastructure.