What's Happening Now

Construction Underway

Construction of the 45 Southwest Expressway began on November 8, 2016. The 3.6-mile $109 million project is being built by McCarthy Building Companies, Inc. Construction is expected to take approximately three years with opening of the new expressway slated for late 2019.  

Agency Roles

Mobility Authority logo The Mobility Authority oversaw design of the project and has contracted with McCarthy Building Companies to construct the project. Once the project is complete the Mobility Authority will operate and maintain the 45 Southwest Expressway.

TxDOT logoTxDOT was the lead agency in the development of the SH 45SW environmental study, including related environmental documentation and coordination of public outreach.

The Team

Mobility Authority logo Design, construct, operate and maintain SH 45SW

Rodriguez Transportation Group logo Design firm hired by Mobility Authority to develop final construction plans, details, and specifications under the oversight of the Mobility Authority

TxDOT logoProvide funding and right-of-way

Travis County Seal Provide funding, provide input and feedback as project partners


Contact Us

3300 N. IH-35 Ste 300
Austin, TX 78705