Motorists will soon be able to traverse the Grand Parkway from I-69 in New Caney to I-10 in Baytown, with 52.5 miles of new roadway segments scheduled to open May 19, Texas Department of Transportation officials confirmed May 16.

According to TxDOT, the Grand Parkway—a 184-mile highway composed of 11 segments across seven counties—is intended to improve mobility, reduce congestion and accommodate population and economic growth in the Greater Houston area.

TxDOT officials noted the new stretch of the Grand Parkway—a roughly $1.28 billion expansion that includes Segments H, I-1 and I-2—represents a 52.5-mile corridor spanning Harris, Montgomery, Liberty and Chambers counties.

The scope of the project included the construction of new lanes and modernization of existing tolling infrastructure, officials said.

Officials added the new segments connecting New Caney to Baytown will be free to motorists for two days before tolling is enforced at midnight May 21.

According to TxDOT, the Grand Parkway is the longest highway loop in the U.S. The Grand Parkway is the third circumferential highway around the Houston metro area, joining the 610 Loop and Beltway 8.