02168cam a22003013u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000140011324501280012726400510025530000470030633600260035333700260037933800360040550000310044150801150047252011060058753400450169365300370173865300480177585600430182321083UtSlPG20260610133504.0mcr n260607r2007||||utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aTA1 aLavis, F.10aTransactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 :bThe Bergen Hill Tunnels. Paper No. 1154 1aSalt Lake City, UT :bProject Gutenberg,c2007  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2007-04-15  aProduced by Louise Hope, Juliet Sutherland and the Online
Distributed Proofreading Team at http://www.pgdp.net  a"Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept.…" is a scientific publication written in the early 20th century. It details the engineering efforts associated with the construction of the New York Tunnel Extension of the Pennsylvania Railroad, specifically focusing on the Bergen Hill Tunnels. The likely topic of this work encompasses the technical specifications, construction methods, and geological considerations involved in the tunnel's excavation and lining.  The opening of this volume introduces the project by specifying its location, key contractors, and historical context, including challenges faced during construction and geological assessments. It outlines the design of the tunnels, including critical measurements and construction methods implemented for excavation and tunnel safety. The text also provides detailed insights into geological formations encountered, excavation techniques, and the equipment used, setting the stage for a comprehensive exploration of civil engineering practices of that era. (This is an automatically generated summary.)  nOriginal publication data not identified  aCivil engineering -- Periodicals  aRailroad tunnels -- Design and construction40uhttps://www.gutenberg.org/ebooks/21083