I found an article in MRC about a bridge that has a chute for unloading to trucks below and thought it would be cool to model. So I started with a cheap bridge I got on eBay and I've posted my progress on my site. Please take a look and let me know what you think.
http://rbdhd.t35.com/girderBridgeUnloader/
rbDave
http://rbdhd.t35.com/girderBridgeUnloader/
rbDave