<br><p><b>Identifier</b>: americanengine70newy (<a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&amp;profile=default&amp;fulltext=Search&amp;search=insource%3A%2Famericanengine70newy%2F">find matches</a>)<br><b>Title</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidamericanengine70newy">American engineer and railroad journal</a><br><b>Year</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookyear1893">1893</a> (<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookdecade1890">1890s</a>)<br><b>Authors</b>: <br><b>Subjects</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectRailroad_engineering">Railroad engineering</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectEngineering">Engineering</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectRailroads">Railroads</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectRailroad_cars">Railroad cars</a><br><b>Publisher</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookpublisherNew_York___M_N__Forney">New York : M.N. Forney</a><br><b>Contributing Library</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookcontributorCarnegie_Library_of_Pittsburgh">Carnegie Library of Pittsburgh</a><br><b>Digitizing Sponsor</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksponsorLyrasis_Members_and_Sloan_Foundation">Lyrasis Members and Sloan Foundation</a><br><br><b>View Book Page</b>: <a rel="nofollow" class="external text" href="https://archive.org/stream/americanengine70newy/americanengine70newy#page/n21/mode/1up">Book Viewer</a><br><b>About This Book</b>: <a rel="nofollow" class="external text" href="https://archive.org/details/americanengine70newy">Catalog Entry</a><br><b>View All Images</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidamericanengine70newy">All Images From Book</a><br>
Click here to <a rel="nofollow" class="external text" href="https://archive.org/stream/americanengine70newy/americanengine70newy#page/n21/mode/1up"><b>view book online</b></a> to see this illustration in context in a browseable online version of this book.<br><br><b>Text Appearing Before Image:</b><br><i>e tunnel begins just west of the above-mentioned yard. Itconsists of a single span of 53 feet, with a rise of 8 feet 8 inches,and is to contain four tracks. The arch is of brick and the tunnelis one of the widest of its kind. Its length is 3,913 feet, and aconsiderable portion of it parallels the two-track Baltimore &amp; OhioRailroad tunnel. The western portals of the two tunnels are inclose proximity. A section of the tunnel is given in Fig. 3, andFig. 3 is a section through the two tunnels, showing their relationto each other and also giving an idea of the ventilating arrange-ment for the new tunnel. Owing to the heavy traffic contem-plated and the large dimensions of the tunnels, an elaborate sys-tem of ventilation has been provided with exhaust fans andfresh air intakes. West of the tunnel the tracks will be carried in anopen subway on an ascending grade of 1.3 percent, to the presentlevel of the track at Thirtieth street. Footway bridges will be 96 AMEPICAN ENGINEER, CAR BUILDER</i><br><b>Text Appearing After Image:</b><br><i>UJ a oo X &lt;111 0. &lt; H(0 ■&lt; &lt; z &gt;-w zz a zO XCO bl &gt; I-O lUQ.lO ccwa. I O AND RAILROAD JOURNAL. 97</i><br><br><b>Note About Images</b><br></p>
<i>Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.</i>
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<ul><li>Source book page: <a rel="nofollow" class="external free" href="https://archive.org/stream/americanengine70newy/americanengine70newy#page/n21/mode/1up">https://archive.org/stream/americanengine70newy/americanengine70newy#page/n21/mode/1up</a></li></ul>