Project Updates

The Grand Parkway Project

The Grand Parkway Project is a 184-mile highway in various phases of development that will circle the greater Houston area. It will spread across seven counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty and Montgomery. Once complete, it will be the largest loop serving the region.

The purpose of the Grand Parkway Project is to:

  • Improve the transportation network in the Houston–Sugar Land–Baytown metropolitan area
  • Relieve traffic congestion and enhance travel options on the surrounding major roadways, including I-10, I-45, US 59 and US 290
  • Improve safety by reducing unsafe "stop and go" conditions
  • Accommodate demographic and economic growth

The Grand Parkway is divided into 11 segments, several of which are in the Corporation’s Grand Parkway System. Segment E and the tolled portions of Segment D in Harris County were placed in service in December 2013 and opened to tolled traffic in February 2014 (except for the direct connectors at I-10). Segments F-1 and F-2 opened to traffic on Feb. 5, 2016, and both began tolling on Feb. 15, 2016. Segment G opened March 29, with tolling commencing April 4, 2016.

I-2A, a portion of Segment I-2, opened in 2008 and began tolling in November 2011; this partial segment became part of the Grand Parkway System on June 30, 2017. GPTC will become responsible for the operations and maintenance of Segment 1-2A when the other portions of Segments H and I have reached substantial completion (currently anticipated to be during the first half of calendar year 2022), and Segment 1-2A toll revenues will flow to the GPTC upon commencement of tolling of the entirety of Segments H and I.