Anyone who regularly commutes to or from the northern reaches of Austin's suburbs is probably familiar with a bill from the Central Texas Regional Mobility Authority.

From July 31-Sept. 1, those who take the 183A Toll—which stretches from north of Leander through Cedar Park and into Austin—will be able to review plans for the 183A Added Capacity Project and offer feedback.

About the project

According to the CTRMA, 183A Toll has seen an increase in drivers, especially in light of recent growth in northwest Austin suburbs, including Cedar Park and Leander.

Plans include adding a fourth lane in both directions from RM 620 and SH 45 to Hero Way.


The toll agency is conducting a preemptive environmental study, lasting through 2025, in anticipation of a traffic analysis indicating a need to alleviate congestion along this thoroughfare.

CTRMA predicts weekday traffic increases of more than 50% by 2040.


How to get involved

The virtual open house can be found at www.mobilityauthority.com/183a-ac, and individuals may submit comments online, by email or by mail.
  • For online submissions, complete the comment form available on the virtual open house website.
  • Email comments to [email protected].
  • Mail feedback to the following address:
    • Central Texas Regional Mobility Authority
    • c/o 183A Added Capacity
    • 3300 N. I-35, Ste. 300, Austin, TX 78705
The background


The CTRMA is an independent government agency that was created in 2002 with the goal of improving regional transportation in Williamson and Travis counties.

The agency manages 183A Toll, Hwy. 290 Toll, Hwy. 71 Toll, MoPac Express Lane, SH 45 Toll and US 183 Toll.