02489cam a22003373u 4500 18722 UtSlPG 20260610133434.0 m cr n 260607r2006||||utu|||||o|||||||||||||| d UtSlPG en iso639-1 TA Brace, James H. Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 : The New York Tunnel Extension of the Pennsylvania Railroad. The East River Tunnels. Paper No. 1159 Salt Lake City, UT : Project Gutenberg, 2006 1 online resource : multiple file formats text txt rdacontent computer c rdamedia online resource cr rdacarrier Release date is 2006-07-01 Produced by Juliet Sutherland, Taavi Kalju and the Online Distributed Proofreading Team at http://www.pgdp.net "Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept.…" is a scientific publication written in the early 20th century. This volume consists of detailed papers discussing various engineering projects and techniques, specifically focusing on the construction of the East River Tunnels as part of the Pennsylvania Railroad’s New York tunnel extension. It likely appeals to professionals in civil engineering and construction, particularly those interested in tunneling methods, cost analysis, and groundbreaking techniques used in underground constructions. The opening of this publication introduces a paper by James H. Brace, Francis Mason, and S.H. Woodard, which outlines the methodologies and challenges encountered during the construction of the East River tunnels. The authors discuss various aspects of the project, including the contract details, excavation techniques, material management, zoning issues, and the innovative use of shields and compressed air during tunneling. Specific attention is placed on the labor costs and construction processes, painting a comprehensive picture of the engineering practices of the time and the lessons learned throughout the construction period. (This is an automatically generated summary.) Original publication data not identified Civil engineering -- Periodicals Railroad tunnels -- Design and construction Mason, Francis Woodard, S. H. https://www.gutenberg.org/ebooks/18722 60108 60108