What is the Grand Parkway?
State 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, 8 of which are already open to traffic.
Q and A with TxDOT
Recently, the League City Communications team interviewed Glenn Allbritton —the TxDOT Houston District Engineer over the Grand Parkway Expansion Project. Allbritton addressed a variety of topics related to the roadway’s expansion into our area, including why the project is necessary, what impact it will have on the region, and the overall timeline for construction. Watch the full interview to learn more about the Grand Parkway Expansion Project and what’s ahead for our community.
A segment of the Grand Parkway—known as section B—is a 28-mile, four-lane, controlled access toll road with intermittent frontage roads from I-45 South in League City toward SH 35 in Alvin and on to SH 288 near Rosharon through Galveston and Brazoria counties.
A portion of Segment B, known as B-1 is a 14.2-mile tolled corridor that will run from FM 646 to south of FM 2403 in Galveston and Brazoria counties. TXDOT is slated to begin construction in late 2026/early 2027. The construction will impact several League City roadways, including Hobbs Road, Calder Road, and FM 646.
To ease congestion, improve mobility, and provide better hurricane evacuation routes in the Galveston County region
To explore Segment B1 in more detail, visit the TxDOT project page to view detailed layout maps of each section.
