State Highway 99 (the Grand Parkway) is a proposed 180-mile circumferential highway traversing seven counties in the Greater Houston Area. It is divided into 11 Segments designated A through I-2. TxDOT is authorized to develop the portion of the Grand Parkway that is in Harris and Montgomery Counties.

More Information

Additional project information is available from the Grand Parkway Association, a non-profit State Transportation Corporation authorized by TxDOT minute order number 82325 on Oct. 25, 1984.