The Draft Environmental Impact Statement (April 2017) for the North Houston Highway Improvement Project is available on this website (see Quick Links). The Final Environmental Impact Statement is expected to be completed and available on this website toward the end of 2018.

TxDOT has continued its coordination with agencies, stakeholders, and the public since the release of the Draft Environmental Impact Statement. In response to comments received and based on further engineering and environmental evaluation, some changes are proposed to the design of the Proposed Recommended Alternative that was presented at the Public Hearing in May 2017.

The changes are in Segment 2 and Segment 3 of the project and the revised conceptual roadway layouts and typical sections can be viewed on exhibits at the links below:

Proposed Recommended Alternative (Segment 2 and Segment 3)
Conceptual Roadway Layouts and Typical Sections (May 2018)

   Segment 2: I-45 north of I-10 to I-610 Plan and Profile
   Segment 2: I-610 Interchange Plan and Profile

   Segment 3: Downtown Loop Overall Plan View

These and other design changes that were presented at the Public Hearing, such as the locations of storm water detention basins, are being evaluted and will be documented in the Final Environmental Impact Statement and associated technical reports.

Conceptual Layouts and Typical Sections for the Proposed Recommended Alternative are Preliminary and Subject to Change



The Texas Department of Transportation, in cooperation with the Federal Highway Administration (FHWA), initiated the National Environmental Policy Act (NEPA) process for highway improvements in the north Houston area. The North Houston Highway Improvement Project involves evaluation of the I-45 North corridor from near downtown Houston to Beltway 8 North, Beltway 8 North from I-45 North to the Hardy Toll Road, the Hardy Toll Road from I-610 North Loop to Beltway 8 North, I-610 North Loop from I-45 North to the Hardy Toll Road, and portions of I-10 and US 59 near downtown Houston.

Prior to December 16, 2014, the FHWA reviewed and approved documents prepared under the NEPA; however, on December 16, 2014, the Texas Department of Transportation assumed responsibility from FHWA for reviewing and approving certain assigned NEPA environmental documents. The Texas Department of Transportation will approve the North Houston Highway Improvement Project Draft and Final Environmental Impact Statements.

The primary objective of the NEPA evaluation is to assess the needs of the project area and evaluate possible alternatives, including a no build alternative. Environment impacts will be further evaluated for those recommended alternatives that meet the need for and purpose of the project in order to select a preferred alternative. The Environmental Impact Statement process will include participation and involvement of the public, elected officials, cooperating agencies, and other interested parties.