NASHVILLE (AP) — The uncertainty of federal funding has led Tennessee's highway director to delay road projects worth $400 million.

The Tennessean (http://tnne.ws/1nSIWLq) 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. He says state transportation officials rely on the bill for revenue for long-term projects.

The 33 stalled projects include an Interstate 55 interchange in Shelby County and a truck climbing lane on I-40 east in Dickson and Williamson counties.