FORT WORTH, Texas (AP) -

Beginning this year, Interstate 35E will be expanded between Dallas and Denton.
    
Work should begin by mid-year. Officials said motorists can expect about 3½ years of construction on I-35E between LBJ Freeway in the Dallas area and the I-35E/35W split in Denton. The work is scheduled to be complete in 2016.
    
The project is centered in Dallas and Denton counties.
    
AGL Constructors was selected for the roughly $1 billion project, which includes adding a free lane in each direction, reversible toll lanes and improved frontage roads.