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Houston SH 99 Widening

Project Details



Houston, TX

Client / Owner

Texas Department of Transportation

Focus Areas & Services


5.9 miles

Delivery Method


Construction Value

$88 million

RS&H is providing CEI services for the SH 99 median widening project from FM 1093 to I-10. As Houston’s third and outermost loop, SH 99 acts as a vital pass through for motorists traveling each on I-10 toward Brazoria, Galveston, and south Harris County. SH 99 is ranked #63 on Texas’ Most Congested Roadways list published by the Texas Transportation Institute in 2021. The 6.5-mile reconstruction consists of widening from a four-lane divided highway to a six-lane divided highway, adding a center cable median barrier, and modifying several ramps. With 130,000 motorists traveling SH 99 each day, the project will increase capacity, improve mobility, and accommodate future growth.

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