eWeek is running a story about an application built by the U.S. Army Corps of Engineers to provide accessible and consistent information about the water level of the Mississippi River. The application is written in ColdFusion deployed on Oracle 9i. Story at http://www.eweek.com/article2/0,1759,1733350,00.asp.
the detroit district of the US Army Corps of Engineers entire website, CMS, and interface to a variety of their tools that get published to the web is written in ColdFusion as well (http://www.lre.usace.army.mil/). It uses a CMS solution, KnowledgeDispatch, offered by a small company in West Virginia (SBCS)(http://www.sbcs.com)