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From an engineering standpoint, that is exactly why a ballasted deck is used today. In steam engine days, it made the bridge more fireproof. From: James Koretsky <jameskoretsky@comcast.net> To: CBQ@yahoogroups.com Sent: Saturday, May 5, 2012 9:52 PM Subject: Re: [CBQ] BURLINGTON BRIDGE Bill,
Ballasting a bridge means that the track is just part of the right of way and not fixed to the actual bridge itself. You can maintain a much better alignment through the bridge and in theory maintain track speed. I'm sure there's more to it from an Engineering point of view, but if you can ballast a bridge, you'll get a better ride across the bridge. Regards James On 5/5/2012 7:12 PM, Bill wrote: > I know this is a little out of territory that this group covers but i have to ask if anyone knows why you would ballast a bridge? > > Like I said the other night when you look at the videos on the BNSf web site the show video looking west down the new bridge spans and the have ballast them and redone the ties already from wood to concrete. > > Bill Ewinger > Burlington Iowa > > > > ------------------------------------ > > Yahoo! Groups Links > > > > > __._,_.___
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