{"id":2854,"date":"2024-04-22T23:21:31","date_gmt":"2024-04-22T23:21:31","guid":{"rendered":"https:\/\/coeng.uaa.alaska.edu\/innovation\/?p=2854"},"modified":"2025-01-17T23:25:36","modified_gmt":"2025-01-17T23:25:36","slug":"iditarod-national-historic-trail-bridge-design","status":"publish","type":"post","link":"https:\/\/coeng.uaa.alaska.edu\/innovation\/?p=2854","title":{"rendered":"Iditarod National Historic Trail Bridge Design"},"content":{"rendered":"\n<p><strong>Student Members:<\/strong> Nicholas Schwantes<\/p>\n\n\n\n<p><strong>Faculty Advisors:<\/strong> Dr. Scott Hamel<\/p>\n\n\n\n<p><strong>Abstract<\/strong>:<\/p>\n\n\n\n<p>The Iditarod National Historic Trail is a recreational trail system that follows antiquated transport<br>routes across the coast and through the interior of Alaska. This trail is unimproved in certain<br>areas and crosses many waterways, including rivers and creeks. Since this trail is commonly used<br>for hiking and backpacking, efforts have been undertaken to make water crossings safer and<br>easier, particularly in the section that crosses the Kenai peninsula.<br>This study examines the feasibility of constructing a bridge over the Bertha Creek Iditarod Trail<br>Crossing in Turnagain Pass. In this report, we prepare a 65% design of a pony truss bridge and a<br>10% design of a through truss bridge, including supporting calculations and construction<br>drawings. Various types of structural modeling and analysis software are used to analyze the<br>bridge alternatives. We compare and contrast these designs on multiple different metrics \u2013<br>primarily constructability, cost, and aesthetics.<br>The results indicate that, although a pony truss bridge would be more expensive to construct, it<br>would be much easier to construct, could be almost entirely shop fabricated, and would better<br>suit the intended usage of the trail system. Both bridge designs would require a helicopter,<br>although the pony truss would take less time to construct, due to less welding and shoring<br>activities being required on-site. Considering the benefits of each alternative leads to the<br>conclusion that a pony truss bridge is preferred over the construction of a through truss bridge at<br>this location.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/coeng.uaa.alaska.edu\/uploads\/DR%20Uploads\/Schwantes_Nicholas_FinalReport_CE686.pdf\">View Report<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Student Members: Nicholas Schwantes Faculty Advisors: Dr. Scott Hamel Abstract: The Iditarod National Historic Trail is a recreational trail system that follows antiquated transportroutes across the coast and through the interior of Alaska. This trail is unimproved in certainareas and crosses many waterways, including rivers and creeks. Since this trail is commonly usedfor hiking and [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":2857,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[512,192,247],"discipline":[297],"academic-year":[499,316],"class_list":["post-2854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","tag-bridge-design","tag-civil-engineering","tag-structural","discipline-civil-engineering","academic_year-499","academic_year-academic_year"],"_links":{"self":[{"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/posts\/2854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2854"}],"version-history":[{"count":2,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/posts\/2854\/revisions"}],"predecessor-version":[{"id":2856,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/posts\/2854\/revisions\/2856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=\/wp\/v2\/media\/2857"}],"wp:attachment":[{"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2854"},{"taxonomy":"discipline","embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Fdiscipline&post=2854"},{"taxonomy":"academic_year","embeddable":true,"href":"https:\/\/coeng.uaa.alaska.edu\/innovation\/index.php?rest_route=%2Fwp%2Fv2%2Facademic-year&post=2854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}