The city of Irving has posted a video about the site, current use as a beam casting yard for TxDOT and a conceptual new bridge
http://www.youtube.com/watch?v=xMgx8zNScHg&feature=player_embedded#!
The Dallas Morning News says the bridge is very conceptual, just a preliminary idea
http://transportationblog.dallasnews.com/2013/01/irving-wants-its-own-iconic-bridge-this-one-an-homage-to-texas-stadium-running-over-state-highway-114.html/#commentzone