http://dc.metblogs.com/2007/08/01/minneapolis-i-35w-bridge-collapse/ Sat, 27 Nov 2010 12:28:40 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://dc.metblogs.com/2007/08/01/minneapolis-i-35w-bridge-collapse/comment-page-1/#comment-10489 ben bates Sat, 04 Aug 2007 01:15:10 +0000 http://dc.metblogs.com/2007/08/01/minneapolis-i-35w-bridge-collapse/#comment-10489 Minneapolis Bridge Collapse Minneapolis Bridge Collapse

]]> http://dc.metblogs.com/2007/08/01/minneapolis-i-35w-bridge-collapse/comment-page-1/#comment-10488 ben bates Sat, 04 Aug 2007 01:13:05 +0000 http://dc.metblogs.com/2007/08/01/minneapolis-i-35w-bridge-collapse/#comment-10488 It appears to me that the original structure was a 4 lane bridge (1967), as evidenced by the steel trusses being only 4 lanes wide. I was ivolved in bridge construction in the 70's in Texas, Louisiana and Mississippi and saw many upgrades where bridge decks were widened with diagonal support members were added to support the extra width. This has even happened where I live (Marble Falls, Tx) where our 2 lane bridge was widened to 4 lanes without any mods to the original structure with the exception of the same diagonal supports tied back to the original structural girters to accomidate the doubling of the road deck. Any comments? It appears to me that the original structure was a 4 lane bridge (1967), as evidenced by the steel trusses being only 4 lanes wide. I was ivolved in bridge construction in the 70′s in Texas, Louisiana and Mississippi and saw many upgrades where bridge decks were widened with diagonal support members were added to support the extra width. This has even happened where I live (Marble Falls, Tx) where our 2 lane bridge was widened to 4 lanes without any mods to the original structure with the exception of the same diagonal supports tied back to the original structural girters to accomidate the doubling of the road deck. Any comments?

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