Grand Parkway section B-1 cleared for procurement, construction set for 2027

The Texas Department of Transportation has announced that after years of planning, the next southeastern segment of the Grand Parkway is moving forward to construction. This development represents a significant step toward completing the 180-mile outer loop surrounding the Greater Houston area.

The Texas Department of Transportation has officially named the extension the SH 99 Grand Parkway Segment B-1 Design-Build Project, which will cover approximately 14 miles of new tolled lanes stretching from FM 646 in League City to just south of FM 2403 in Alvin.

The expected project, estimated to cost about $1.96 billion, plans to add four main tolled lanes—two in each direction—along with access roads, interchanges, and direct connections at important intersections, especially at State Highway 35 and Interstate 45.

Prior to the commencement of construction in spring 2027, TxDOT must finalize its procurement phase. Proposals detailing both technical specifications and pricing for the design-build contract must be submitted by the end of February. A contract award is anticipated in April, with execution slated for July. The design work and project mobilization are set to commence in the latter half of 2026.

The funding for the project will mainly come from toll revenues generated by Parkway users, supplemented by a minor contribution from state funds for the sections located north of the SH 35 interchange. The toll rates for the newly opened section remain to be determined.

Local business leaders assert that the expansion could transform the regional economy. Bryan Bolton, the president of the League City Chamber of Commerce, expressed that the project will be “transformative” for the city’s identity and economy. “It’s going to be huge,” Bolton stated, noting that the expansion could enhance League City's status as a regional economic center similar to The Woodlands.

Originally envisioned in the early 1960s, the Grand Parkway is intended to serve as a circumferential highway encircling the Houston metropolitan area. Segment B, starting with its earliest section, B-1, is set to extend from I-45 in League City, through Alvin, and to SH 288 near Rosharon, thereby connecting Galveston and Brazoria counties.

Earlier this month, TxDOT and local partners convened meetings in League City to inform businesses and residents about upcoming opportunities and the potential impacts of the project. The conversations encompassed schedules and strategies for companies to interact with contractors and project personnel.

Authorities have indicated that the extension is designed to boost regional mobility, alleviate congestion, and improve evacuation routes for coastal communities. The segment is presently in the procurement phase, and while an official construction start date has not been announced, it is expected for 2027.