All Discussions Tagged 'Angled' - Northwestern Pacific Railroad Network2024-03-29T01:21:36Zhttp://nwprr.net/forum/topic/listForTag?tag=Angled&feed=yes&xn_auth=noNWP Tunnel Portal Enigmatag:nwprr.net,2014-12-27:3290209:Topic:1394612014-12-27T18:04:29.304ZDave S.http://nwprr.net/profile/dms
<p>I recently purchased a number of videos from the NWPRRHS and have been enjoying them over the holiday break. [Proceeds benefit the society, but it appears that they do a poor job of marketing them! For example, today it took me a while just to find a link to their video catalog, which was buried under "Library"!]</p>
<p><a href="http://www.nwprrhs.org/for-sale.html" target="_blank">http://www.nwprrhs.org/for-sale.html</a></p>
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<p><strong>Video #1115</strong> is a slide show…</p>
<p>I recently purchased a number of videos from the NWPRRHS and have been enjoying them over the holiday break. [Proceeds benefit the society, but it appears that they do a poor job of marketing them! For example, today it took me a while just to find a link to their video catalog, which was buried under "Library"!]</p>
<p><a href="http://www.nwprrhs.org/for-sale.html" target="_blank">http://www.nwprrhs.org/for-sale.html</a></p>
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<p><strong>Video #1115</strong> is a slide show presented by <strong>Gus Campagna</strong> which shows then and now photos of many of the NWP's 40 standard gauge tunnels plus some of the tunnels on the narrow gauge line.</p>
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<p>One interesting question raised by the slide show is the shape of the tunnel portals. On many tunnels one portal will have a rounded arch while the portal at the other end is angled. Recent photo examples from <a href="http://nwprr.net/profile/BrianDLiddicoat" target="_self">Brian Liddicoat</a>:</p>
<p><a href="http://nwprr.net/photo/tunnel-14-south-portal-2" target="_self">Tunnel 14 South Portal (Rounded)</a></p>
<p><a href="http://nwprr.net/photo/tunnel-14-north-portal-1" target="_self">Tunnel 14 North Portal (Angled)</a></p>
<p>This doesn't appear to be a hard and fast rule, but from the slide show it is astonishing how many tunnels are constructed (or reconstructed) in this way. <strong>Does anyone know why?</strong></p>
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<p>Perhaps all the tunnels were originally rounded, but when reconstruction was required the angled style was introduced. This might be the most-likely explanation, but this mystery is most strikingly displayed in Gus' slide show and begs the question as to whether there another rationale for it.</p>
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<p>Would love to hear from former NWP or Eureka Southern railroaders who might know something about this!</p>
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