Texas

texas 99State Hhway 99 (the Grand Parkway) is a proposed 180-mile circumferential hhway traversing seven counties in the Greater Houston area. Conceptualized in the early 1960s, it is dividedSH 99 Grand Parkway toll information View the TxTag site for more information. To drive on these portions of the road, you must have a prepaid toll account and one of these electronic toll tags: