The purpose of this project is to enhance freight mobility and address congestion along the I-45 corridor. The project limits are in Huntsville from just north of SH 19 to approximately 2 miles north of SH 75, with a length of approximately 9 miles. Small amounts of additional right of way may be purchased. While this project is not yet funded, the project is estimated for letting in June 2019 and construction in late 2019.


  • The freeway within the project limits was constructed in the early 1960s
  • Passenger and truck traffic has greatly increased during the 50-year lifespan of the facility
  • I-45 serves as the primary hurricane and disaster evacuation route for metro Houston and Galveston

Proposed Improvements

  • Replace existing main-lane pavement with new pavement
  • Widen to six travel-lanes (three north and three south) with a center concrete traffic barrier instead of a grass median
  • Add collector distributor roads
  • Extend and replace drainage
  • Replace most existing bridges
  • Reconstruct ramps to current standards
  • Reconstruct frontage roads and crossroads adjacent to new ramps and interchanges

Get Involved



TxDOT Bryan District
Director of Transportation Planning and Development
2591 N. Earl Rudder Freeway
Bryan, TX 77803-5190

(979) 778-2165