US 183 Frontage Roads
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US 183 Frontage Roads

Project overview

The US 183 frontage road project from RM 1431 to Avery Ranch Boulevard is designed to address congestion, enhance safety and improve mobility along US 183 in Williamson County. The approximate 3-mile project includes constructing two grade-separated lanes on each side of the Central Texas Regional Mobility Authority’s 183A toll road, as well as a shared-use path on the northbound side of the roadway, connecting to the existing US 183 trailhead.

Project purpose and benefits

Population growth and development in central Texas continues to increase. The US 183 frontage road project will improve mobility and safety by constructing frontage roads parallel to the 183A toll road. The frontage roads will also serve as a relief route when the toll road is closed for maintenance or incidents.

Other benefits include:

  • Mobility. Improving travel times and mobility by closing the frontage road gap between RM 1431 and Avery Ranch Boulevard.
  • Safety. Improving safety by reducing the number of driveways and intersections along the realigned US 183 frontage roads.
  • Environmental. Reducing emissions with fewer idling vehicles queued at the existing seven signalized intersections.
  • Future planning. Allowing the city of Cedar Park more flexibility to align future development and improvements with city transportation and master plans.