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Texas Department of Transportation IH-45 Gulf Freeway

Project Details



Houston, TX

Client / Owner

Texas Department of Transportation

Delivery Method


Construction Value

$220 million

IH-45 Gulf Freeway Widening and Reconstruction

RS&H, as the prime CEI consultant, is providing Construction Engineering and Inspection Services for the widening of 5.5 miles of IH 45 between Houston and Galveston from six to eight interstate mainlanes and six lanes of frontage roads. The $220 Million project will also replace fifteen existing bridges, including flipping the existing configuration at FM 646 and IH 45 with construction of a new mainlane bridge over FM 646, four bridges over Clear Creek, and a braided entrance from FM 518 to IH 45. The increased capacity and enhanced mobility of the interstate will facilitate growth and development in Galveston County, upgrade an important hurricane evacuation route, and position the interstate for the future construction of Houston’s third outer loop.

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Our prior experience designing the Apollo-era and Space Shuttle mobile launch infrastructure informed the framework for stakeholder engagement to ensure accommodation of life safety, human factors, and coastal, launch, wind, and hazardous environments for the successful design of modifications to all structures and facilities.


RS&H provided support to the Ground Systems Development and Operations Program through our design for upgrades to NASA’s iconic Vehicle Assembly Building (VAB) High Bay 3.