Efforts on the safety fencing, lights and drainage were completed in mid February and the bridge was opened to the public on February 19th. Since then bridge usage has been significant and was even seen as crowded at times this past weekend. Since the contractor still has a few minor items to complete on the trail (largely south of Massey Chapel Road) in the next couple of weeks, maintenance by Durham will probably not begin until late in March. A short Youtube video by ATT user Jon Parker shows some bridge views a few days after the opening.
Bruce Siceloff, who writes the Road Worrior column for the News & Observer, has put together a nice summary of the various problems and delays encountered in constructing the ATT's I-40 bicycle and pedestrian bridge http://www.newsobserver.com/2013/12/23/3482682/road-worrier-durhams-i-40... . The replacement components for the bridge are expected to be received soon. Durham still has not set a firm date for completion of the bridge beyond the late January date referred to by Marvin Williams in an early December letter to the Durham News.