Comments on: Behind the ‘Bridge in a Backpack’ That Could Go National http://dc.streetsblog.org/2009/08/18/behind-the-bridge-in-a-backpack-that-could-go-national/ Your daily source for national transportation policy news and analysis. Thu, 09 Feb 2012 23:57:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: true religion http://dc.streetsblog.org/2009/08/18/behind-the-bridge-in-a-backpack-that-could-go-national/comment-page-1/#comment-382302 true religion Thu, 19 Aug 2010 06:46:37 +0000 http://dc.streetsblog.org/?p=20371#comment-382302 The bridge's nickname, in fact, is a bit misleading; one backpack can carry enough deflated fiber tubing to make a full arch for the bridge. The Neal span required 23 arches to run 36 feet, and the new technology will soon be used on a 46-foot span in North Anson, Maine. The bridge’s nickname, in fact, is a bit misleading; one backpack can carry enough deflated fiber tubing to make a full arch for the bridge. The Neal span required 23 arches to run 36 feet, and the new technology will soon be used on a 46-foot span in North Anson, Maine.

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