Texas State Hhway 99 Travel Info

texas 99SH 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:State Hhway 99 (SH 99), also known as the Grand Parkway, is a beltway in the U.S. state of Texas. Its first section opened on August 31, 1994.