Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150

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"Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept…" by Charles W. Raymond is a scientific publication written in the early 20th century. The book focuses on the New York Tunnel Extension project of the Pennsylvania Railroad, which aimed to create a significant rail route under the Hudson and East Rivers, enhancing transportation efficiency into New York City. In this detailed account, Raymond discusses the technical considerations, engineering challenges, and various components associated with the construction of the tunnel extension. He explains how the project originated from a desire to connect essential rail lines into the populous city and outlines the planning, design, and execution phases undertaken by a dedicated board of engineers. The work describes key features such as the interchange yards, electrification efforts, and tunnel drainage systems, as well as estimating the costs involved. Ultimately, the publication provides an overview of how this engineering endeavor sought to alleviate existing transportation bottlenecks and improve freight and passenger movement in the increasingly busy New York metropolitan area.