Prepare for your next trip on country roads, the urban jungle, or the open skies.
Discover TexasDiscover key information that TxDOT collects on traffic safety, travel, bridges, etc. Study our various maps, dashboards, portals, and statistics.
Data and mapsLearn how to get started and find your next business opportunity.
Do businessBrowse projects in your area and find opportunities to get involved.
Explore projectsGetting around can be dangerous. Luckily, we have safety tips for all the ways you like to travel.
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About TxDOTState Highway 99 (the Grand Parkway) is a proposed 180-mile circumferential highway traversing seven counties in the Greater Houston area. Conceptualized in the early 1960s, it is divided into 12 segments designated A through I-2.
