Construction Overview

Construction on SH 45SW officially began in November 2016 and is anticipated for completion in late 2019. Construction for the project is approximately $76 million. The project will have a phased construction process, working from FM 1626 to Bear Creek, Bear Creek to MoPac with interchange work at MoPac and FM 1626, respectively.

The project will include:

  • Widening of the existing SH 45 and MoPac bridges over Danz Creek

  • Direct connector for westbound SH 45SW to northbound MoPac over Danz Creek

  • Entrances and exits at FM 1626, Bliss Spillar Road, MoPac, and SH 45, west of MoPac

  • Overpasses at Bliss Spillar Road, Bear Creek and Danz Creek

To ensure the project is constructed using the highest standards in environmental protection, the Mobility Authority will be using a combination of structural and non-structural Best Management Practices (BMPs). These BMPs include:

  • Permeable Friction Course (PFC) pavement

  • Water quality ponds

  • Vegetated controls such as grassy swales

  • Vegetated filter strips

  • Hazardous materials traps located at all creeks, waterways, and culverted drainage ways

In addition, to protect the extensive karst features in the area, 90 percent of the project will be constructed on top of fill and will not require excavation. When SH 45SW construction is complete, it will offer immediate relief to drivers in Hays and southern Travis counties. Average peak travel time savings for drivers who use SH 45SW over local routes ranges from 9 to 17 minutes. Average peak travel time savings for drivers who continue to use various local routes ranges from 6 - 7 minutes.


Looking for Construction Updates or Traffic Alerts?


Click here for Travel Information

Sign Up For Our Newsletter

The Mobility Authority sends out E-Newsletters and other announcements to keep neighbors, stakeholders and other interested parties up to date on important activities and events surrounding the construction of this project.