NASHVILLE, Tenn. (AP) — The uncertainty of federal funding has led Tennessee's highway director to delay road projects worth $400 million.The Tennessean reports 12 construction projects and 21 right of way acquisitions were supposed to be complete by Sept. 30, 2015; now they will have to wait until fiscal year 2016.Tennessee Department of Transportation Commissioner John Schroer sent lawmakers a letter on Friday to notify them of the change.Schroer says while Congress has approved enough funding to continue road projects through May, it hasn't completed a full six-year highway bill.