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Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
Harris County Toll Road Authority Tomball Tollway Section 1
 

Harris County Toll Road Authority Tomball Tollway Section 1 (SH 249)

Section 1 of the Tomball Tollway is a $55 million, 2.3-mile segment of the new six-lane toll facility with auxiliary lanes located along SH 249 between Spring Cypress and Willow Creek.

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PGAL designed the mainlanes, ramps, typical sections, alignments and profiles, and superelevation for the project. PGAL also handled bridge design for the 1,736-linear-foot twin bridge structures over Boudreaux Road and the future Grand Parkway Frontage Roads.

This stretch of the Tomball Tollway includes extensive superelevated sections, which created a host of complex design challenges, including ramp tie-ins, flat pavement sections, drainage flowing toward the center barrier, vertical clearances, and 100-year water surface elevation conflicts. Each element of the design also had to take into account plans for an additional outside ultimate lane, which further complicated ramp tie-ins and clearances.

Completed on an aggressive seven-month timeline, the project passed multiple reviews by TxDOT and HCTRA.

Services Include:

  1. Design for mainlanes, ramps, typical sections, alignments and profiles, and superelevation
  2. Design for 1,736-linear-foot twin bridge structures
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