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This construction project includes improvements on I-45 from NASA 1 Bypass to south of FM 518, in Harris and Galveston counties.

Planned Construction Improvements

Planned improvements include the following:

  • Reversing and braiding the northbound entrance and exit ramps; this means the northbound entrance and exit ramps will be reversed, and the northbound entrance ramp will go over the northbound exit ramp
  • Widening northbound exit ramp to a two-lane exit ramp
  • Lengthening Clear Creek frontage road bridges
  • Constructing detention ponds

Approximately six acres of additional right of way are required for the proposed design changes. No additional displacements are anticipated.

Next Steps

  • Re-evaluation determination for these design changes was approved by TxDOT on Aug. 30, 2016
  • Construction completion date is estimated in December 2021

Lane Closure and Detour Information

Lane closure and detour information can be monitored by:

Get Involved

Contact Us

Reference Control Section Job Number XXXXXX when contacting the Galveston Area Office
5407 Gulf Freeway (I-45)
La Marque, TX 77568
(409) 978-2500